KR100448221B1 - Movable Steel Form for Constructing Culvert and Continuous Constructing Method of Culvert Using the Same - Google Patents

Abstract

The present invention is a fast construction speed of the culvert, to form a sphere continuously by using a mobile steel formwork to be able to refill immediately after construction and at the same time by using a steam in the field to accelerate curing curing time to shorten the curing period By minimizing and making culverts continuously, it is possible to solve the problem of unnecessary air delay and to shorten the construction period much better than the current method.

The configuration of the present invention is the base slab formwork member 10 for forming the bottom slab 310 of the culvert 300, and the front and rear movement along the upper surface of the foundation slab formwork member 10 and the steam supply pipe 50 ) Is installed on the outer surface to form the front and rear surfaces of the outer side wall formwork member 30 and the bottom slab 310 of the culvert 300 to supply steam after culvert concrete is poured to promote steam curing. An external formwork device including a foundation slab closing plate member 102 and a front and rear closing plate member 104 for forming a front and rear surface of the culvert 300; And an inner formwork device 60 which forms an inner surface of the culvert 300 by being spaced apart from the outer formwork device by a predetermined distance, wherein the sidewall plate member 66 and the upper slab plate member 64 are stretched and sidewalls. Extension means (70, 71, 72) capable of expanding and contracting the internal formwork device (60) by moving the upper and lower slab plate members (64) up and down while moving the plate member 66 to the left and right, and to move back and forth It consists of an internal formwork device 60 with a device 62.

The present invention having such a configuration is that by using a mobile iron formwork, the product surface is beautiful, continuous work is possible and the construction speed is fast to shorten the air.

In addition, it is possible to shorten the air by shortening the curing period of the concrete, and even in winter and weather worsening adaptability is excellent, does not cost a separate curing cost.

Description

Movable Steel Form for Constructing Culvert and Continuous Constructing Method of Culvert Using the Same}

The present invention relates to a portable steel formwork device for culvert production and a steam-promoting curing continuous construction method of the culvert using the same, more specifically, the steel formwork device for culvert production by disassembling, assembling and moving freely configured When the culvert construction is completed, the steel formwork can be advanced to construct the culvert between the subsequent lands, and the mobile steel formwork for the production of the culvert with a new structure capable of promoting curing of the culvert using steam and the cultivation of the culvert using the same It relates to a construction method that can be installed continuously.

Due to the development of large-scale housing sites and the increase of dense houses, the demand for facilities such as electric power districts, communication districts, and community districts is rapidly increasing. The conventional method of constructing a culvert used for such a purpose has been mainly used a site-installation construction method of constructing a culvert by pouring concrete in the field. However, this method of cast-in-place construction, which takes a lot of time to cure concrete, caused the delay of the air as a whole, and it required a thorough management during curing, resulting in a lot of incidental costs, especially during winter construction. Problems have arisen. In addition, due to the delay of air, various civil complaints occurred in the case of urban construction, causing traffic jams.

Accordingly, in order to solve the problems of air, economics and civil complaints, PC (Precast Concrete) prefabricated construction methods are often used to assemble and construct products pre-fabricated at the factory. It requires a lot of attention to the processing of pour joints, and it requires a separate release product to be installed in the end and linear change part, which leads to an increase in construction cost. Rather, in some cases, cast-in-place methods were preferred.

Therefore, the present invention was developed in view of the above-mentioned conventional problems, and the construction speed of the culvert is fast, and using the movable steel formwork to continuously fill the sphere immediately after construction to form a sphere continuously and at the same time steam in the field The purpose is to reduce the curing period by minimizing the curing period by stimulating curing by using squeeze, and to make the culvert continuously to solve the problems such as unnecessary air delay and to shorten the construction period much better than the current method. It became.

1 is an exploded perspective view schematically showing an embodiment and a culvert of the mobile formwork of the present invention;

Figure 2 is a perspective view showing the assembled state of the mobile formwork of the present invention

Figure 3a is a front view and a partial detailed view showing an embodiment of the foundation slab formwork member of the present invention

Figure 3b is a partial detailed view of another embodiment of the foundation slab formwork member of the present invention

Figure 4 is a perspective view schematically showing the shape of manufacturing the floor slab of the culvert of the present invention

Figure 5 is a front view showing the foundation slab closing plate member of the present invention

6 is a front view showing one embodiment of the outer side wall formwork member of the present invention;

7 is a front view showing the driving portion of the outer side wall formwork member of the present invention;

8 is a side view showing a drive unit of the outer side wall formwork member of the present invention;

9 is a plan view showing a drive unit of the outer side wall formwork member of the present invention;

10 is a front view showing a work table of the outer side wall formwork member of the present invention.

11 is a front view showing an embodiment of the internal formwork apparatus of the present invention;

12 is a front view showing the front and rear closing plate member of the present invention.

Figure 13 is a perspective view showing a state in which the side wall and the upper slab reinforcement of the present invention is placed

14 is a front view showing an installation state of the mobile formwork of the present invention.

15 is a front view showing a state when the mobile formwork of the present invention moves.

Figure 16 is a full perspective view showing a state in which the concrete is poured into the mobile formwork of the present invention

* Description of the symbols for the main parts of the drawings *

10: foundation slab formwork member 12: flat part

13 bolt 14 reinforcement

15: connecting member 16, 312: rail portion

18 pipe pipe 27 bolt hole

28 block-out part 30 outer side wall formwork member

32: drive unit 33, 63: adjustment member

38: workbench 42: spacing device

44: drive part housing 46: fixed bolt

48: driving body 50, 61: steam supply pipe

51: driving wheel 54: support

57: safety rail 58: walking board

60: internal formwork device 62: drive device

64 upper slab plate member 66 side wall plate member

68: haunting plate member 70, 71, 72: expansion means

80: base 84: lifting device

102: foundation slab closing plate member 104: front and back closing plate member

106: angled steel 108: angled steel

150: bottom slab reinforcement 152: side walls and upper slab reinforcement

200: mobile formwork device 300: culvert

310: floor slab 320: side wall

The configuration of the present invention for achieving the above object is a mobile formwork for continuously manufacturing a concrete culvert, the base slab formwork member for forming the bottom slab of the culvert, and along the upper surface of the base slab formwork member It is possible to move back and forth, and when the construction of one site is completed, it is separated from the foundation slab formwork member and moved for the construction of the neighboring site.It is installed outside the side wall of the culvert to form the side wall of the culvert, and the steam supply pipe is external It is installed in the outer side wall formwork member to supply steam after pouring the culvert concrete, and to promote steam curing, and the base slab finishing plate member for forming the front and rear surfaces of the bottom slab of the culvert, and the front and rear surfaces of the culvert External formwork device including a front and rear closing plate member to form a ; And an inner formwork device which forms an inner surface of the culvert by being spaced apart from the outer formwork by a predetermined distance, the sidewall plate member facing the inner surface of the culvert sidewall, and facing the lower surface of the upper slab concrete of the culvert. It is provided with an upper slab plate member, an expansion and contraction means for expanding and contracting the internal formwork device by moving the upper and lower slab plate members to the left and right and moving the upper slab plate member up and down, and a driving device to move back and forth, When placing concrete for culling construction, the expansion means is extended to make the side wall plate member and the upper slab plate member expanded, and when the culling construction is completed, the expansion means is shrunk to contract the side wall plate member and the upper slab plate member. At the same time as the contracted state, the drive device becomes the driveable state, and the culling construction between the one ground is completed. The technical feature is that it has an internal formwork including a base that can move for the culvert construction between neighboring grounds.

The foundation slab formwork member is provided with a rail portion for the movement of the outer sidewall formwork member, the outer sidewall formwork member is characterized in that it is provided with a drive unit for driving along the rail portion to move the outer sidewall formwork member back and forth. .

A rail part is provided on the bottom slab of the culvert to move the inner formwork device, and one side of the rail part so as to cure concrete by supplying steam after pouring culvert concrete with the steam supply pipe provided on the outer side formwork member. It characterized in that the steam supply pipe is provided.

The top of the outer side wall formwork member is foldable and is expanded in a fixed installation state of the outer side wall formwork member so that the worker can walk, and when the outer side wall formwork member is moved, it is folded so that the worker cannot walk. Characterized in that the worker walking work platform is provided with a safety railing that becomes impossible to walk.

The lower part of the base is provided with a lifting device capable of raising and lowering the base, and a support pillar for supporting the upper slab plate member is installed at an upper portion of the base, and the support pillar is provided with side wall plates on both sides by expansion and contraction. It is characterized in that the elastic means for moving the member to the left and right, respectively.

The side wall plate member and the outer side wall formwork member of the inner formwork device, as a part thereof, is characterized in that the removable member is provided so that the length can be increased or reduced in the height direction during the manufacture of different culverts. .

In addition, the present invention is the base slab formwork member for forming the bottom slab of the culvert, and the front and rear movement along the upper surface of the base slab formwork member and is installed outside the sidewall portion of the culvert to form a sidewall portion of the culvert and the steam supply pipe External formwork device including an external side wall formwork member installed on an outer surface, a foundation slab closing plate member for forming front and rear surfaces of the bottom slab of the culvert, and a front and rear finishing plate member for forming front and rear surfaces of the culvert. ; And an inner formwork device which forms an inner surface of the culvert by being spaced apart from the outer formwork by a predetermined distance, the sidewall plate member facing the inner surface of the culvert sidewall, and facing the lower surface of the upper slab concrete of the culvert. The upper slab plate member is expanded, and the expansion and contraction means to expand and contract the internal formwork by moving the upper side slab plate member to the left and right and the upper slab plate member to move up and down, and the base is provided with a drive device to move back and forth As a steam-promoting curing continuous construction method of the culvert using a portable formwork for making a culvert equipped with an internal formwork device, comprising: combining the foundation slab formwork member, the foundation slab finishing plate member, the inner side of the bottom slab reinforcement Reinforce the sidewalls and upper slab reinforcements of the By installing the bottom slab, combining the foundation slab formwork member, the foundation slab closing plate member, the outer sidewall formwork member and the front and rear side finishing plate member to complete the installation of the external formwork device, and the contracted state of the reinforcing bar Install the inner formwork device of the inner formwork, and expand the expansion means provided in the inner formwork device and raise the lifting device of the base to expand the sidewall plate member and the upper slab plate member to make the inner formwork device in an expanded state, Construct the culvert by placing concrete in the space between the external formwork and the internal formwork, and cover the curing cover to cover the entire upper slab of the external formwork and the culvert, and then the steam supply pipe of the external sidewall formwork member and the bottom slab of the culvert. Steam is supplied to the steam supply pipe on the When curing of the culvert is completed, the coupling of the outer formwork device is released, the expansion means of the inner formwork device are contracted, and the lifting device of the base is lowered to contract the sidewall plate member and the upper slab plate member. By making the driving device of the base into a driveable state, the inner formwork device is made in a contracted state, and the inner formwork device and the outer formwork device are characterized in that they are moved for culling construction between neighboring grounds.

In addition, as described above, after the internal formwork device is in a contracted state, the foundation slab formwork member and the foundation slab closing plate member are placed back to the neighboring space of the culvert completed in the above process for continuous construction of the culvert between neighboring lands. Combining the bottom slab reinforcement and the sidewalls of the culvert and the upper slab reinforcement to the inside and then placing the concrete to construct the floor slab, and moving the outer sidewall formwork member removed from the completed culvert to combine again An external formwork device is installed, and the contracted internal formwork device is moved to an upper part of the completed bottom slab of a neighboring culvert to an expanded state, and the concrete is poured again to construct a continuous culvert.

Hereinafter, with reference to the accompanying drawings will be described the configuration of the present invention by looking at an embodiment of a mobile steel formwork device for culvert production according to the present invention and an embodiment of the method for promoting curing culvert using the same.

First, the mobile formwork of the present invention for producing a concrete culvert is composed of an external formwork device installed on the outer surface of the culvert 300, and an internal formwork device 60 installed on the inner surface of the culvert 300. do.

1 is a schematic view showing an embodiment of the mobile formwork 200 and the culvert 300 according to the present invention in an exploded perspective view, Figure 2 one embodiment of the mobile formwork 200 according to the present invention A perspective view is shown schematically showing a state in which an example is assembled.

Specifically, the external formwork device, the base slab formwork member 10 for forming the bottom slab 310 of the culvert 300 and the base slab formwork member 10 is movable along the upper surface of the culvert Culvert to form the outer sidewall formwork member 30, the foundation slab closing plate member 102, and the front and rear surfaces of the culvert 300, which are installed outside the sidewall portion of the culvert 300 to form the sidewall portion 320 of the culvert 300. It consists of a front and rear surface closing plate member 104 is installed on the front and rear surfaces of (300).

Figure 3a is a front view and a partial detailed view of an embodiment of the foundation slab formwork member 10 provided in the movable formwork device 200 of the present invention, Figure 3b is the foundation slab formwork member 10 A partial detail is shown for another embodiment of.

The foundation slab formwork member 10 extends in the longitudinal direction of the culvert 300 to form a longitudinal side surface of the bottom slab 310 of the culvert, and is provided with a pair on both sides in accordance with the cross-sectional size of the culvert 300. . The base slab formwork member 10 is provided with a flat portion 12 in contact with the bottom slab concrete side of the culvert 300, and is provided on the rear surface of the flat portion 12 to reinforce the rigidity of the flat portion 12 It is comprised by the part 14.

As will be described later, the outer side wall formwork member 30 forming the side wall of the culvert 300 is installed on the upper side of the base slab formwork member 10 to move in the longitudinal direction of the culvert, for this purpose the base slab formwork member 10 The upper side of the reinforcing portion 14 of the) is provided with a rail portion 16 for the movement of the outer side wall formwork member (30).

Looking at an embodiment of the foundation slab formwork member 10 with reference to Figure 3a, in the embodiment shown in Figure 3a the foundation slab formwork member 10 is composed of two H-shaped steel is stacked up and down The flange of the H-shaped steel forms the flat portion 12, and the web and the lower flange of the H-shaped steel form the reinforcing portion 14. The two H-shaped steels are integrated by combining their lower flanges with the connecting member 15 and the bolts 13. A rail portion 16 is installed on an upper portion of the web of the H-shaped steel positioned above the foundation slab formwork member 10. In the embodiment shown in FIG. 3A, the rail portion 16 extends in the longitudinal direction. It consists of. However, the rail portion 16 is not necessarily limited to the L-shaped steel, it may be composed of a steel bar or the like. In addition, in the embodiment shown in Figure 3a the base slab formwork member 10 is made of two H-shaped steel, the number of H-shaped steel used, that is, the thickness of the base slab formwork member 10 is the bottom portion of the culvert ( As determined by the thickness of the cast concrete formed at 310 and the lower portion thereof, when the thickness of the bottom portion 310 of the culvert is thicker, a plurality of H-beams may be stacked to form the foundation slab formwork member 10. On the other hand, when the thickness of the bottom slab 310 of the culvert is thin, the base slab formwork member 10 may be formed of one H-shaped steel. On the other hand, the foundation slab formwork member 10, as shown in Figure 3b, the planar portion 12 is composed of a simple vertical plate material, the reinforcement portion 14 is composed of a square-shaped steel, the rail portion 16 It may be composed of a steel rod.

In addition, when the concrete and the discarded concrete for forming the bottom slab 310 of the culvert 300 is poured, the spacing of the base slab formwork member 10 positioned side by side by the pressure of the hardened concrete can be opened. In order to prevent this, prestressing using steel wire can be applied to both sides of the base slab formwork member 10 in the lateral direction (the direction perpendicular to the longitudinal direction of the culvert). It can be installed across the pipe 18 through which the steel wire will pass. Although not shown in the accompanying drawings, the pipe 18 may be mounted between the foundation slab formwork member 10 and the foundation slab formwork member 10 by being coupled to the foundation slab formwork member 10 through a wedge such as a bolt. As such, it may be attached to the foundation slab formwork member 10 using an adhesive. The pipe 18 is embedded in the concrete when the concrete slab bottom slab 310 is poured, the steel wire inserted through the pipe 18 mounted between the base slab formwork member 10, as described above, After completion of the culvert construction between the 1 area, the pipe 18 can be removed and recycled to the culvert construction between neighboring lands.

Meanwhile, the reinforcing portion 14 of the foundation slab formwork member 10 includes a bolt hole 27 for allowing the outer sidewall formwork member 30 to be coupled by a bolt, and a bolt coupling of the outer sidewall formwork member 30. A block out 28 is formed for work (see FIG. 2).

4 schematically shows a shape in which concrete is poured into a space made by the foundation slab formwork member 10 to fabricate the floor slab 310 of the culvert 300, wherein the foundation slab formwork members 10 of both sides are formed. On the front and rear surfaces, the base slab closing plate members 102 forming the front and rear surfaces of the bottom slab 310 are respectively mounted. First, discarded concrete is poured. Thereafter, the floor slab concrete is poured, prior to placing the floor slab concrete, the bottom slab reinforcement 150 is disposed on the upper surface of the discarded concrete, and the pipe 18 through which the steel wire passes is also disposed together.

The foundation slab closing plate member 102 should be able to fully support the side pressure due to the concrete when placing the floor slab 310 concrete, for this purpose, as shown in Figure 4 and 5, the foundation slab closing plate member 102 On the back of the) may be reinforced K-shaped steel 108, L-shaped steel 106, and the like.

The foundation slab closing plate member 102 is detachably coupled to the foundation slab formwork member 10 on both sides by a fastening member (not shown), such as a bolt.

Next, the configuration of the outer sidewall formwork member 30 installed outside the sidewall portion concrete of the culvert 300 to form the sidewall portion 320 of the culvert will be described.

6 shows a front view of one embodiment of the outer sidewall formwork member 30. The outer side wall formwork member 30 is composed of a steel plate made of a flat surface of the side wall portion of the culvert 300 in contact with the concrete, the back surface of the surface in contact with the concrete may be arranged in a grid for reinforcement.

In the present invention, the outer side wall formwork member 30 is fixed to the foundation slab formwork member 10 during concrete placement, but is separated from the foundation slab formwork member 10 after it is removed after finishing the concrete placement. It is possible to move in the front-rear direction along the rail portion 16 of the foundation slab formwork member 10. For concrete pouring, the outer sidewall formwork member 30 is fastened and fixed to the foundation slab formwork member 10 by detachable fastening means such as bolts in an upright form.

On the other hand, after the casting of the concrete is completed, the outer sidewall formwork member 30 is separated from the base slab formwork member 10 and detached from the culvert 300. The removed outer sidewall formwork member 30 is another culvert 300. Advancing forward or backward for the continuous fabrication of the re-combination with the foundation slab formwork member 10 again. At this time, the drive unit 32 is driven along the rail portion 16 formed in the foundation slab formwork member 10 to the outer sidewall formwork member 30 to move forward and backward of the removed outer sidewall formwork member 30. Is provided.

7 to 9 illustrate one embodiment structure of the driving unit 32 provided in the outer side wall formwork member 30, and FIG. 7 is a front view when the driving unit 32 is in a non-driven state. 8 is a side view when the drive unit 32 is in a driveable state, and FIG. 9 is a plan view of the drive unit 32.

In the embodiment of the drive unit 32 shown in FIGS. 7 to 9, the drive unit 32 includes a drive unit housing 44 fixed to an outer side of the outer side wall formwork member 30, and the drive unit housing 44. A driving body 48 that moves up and down inside and outside the center) and a driving wheel 51 provided below the driving body 48. When the outer side wall formwork member 30 is fastened and fixed to the base slab formwork member 10, the driving part 32 is formed by raising the driving body 48 inside the driving part housing 44 as shown in FIG. 7. In the case where the driving wheel 51 is lifted up and becomes impossible to drive, the outer side wall formwork member 30 is to be separated from the base slab formwork member 10 and moved back and forth. 48 is lowered into the drive position inside the drive unit housing 44 such that the drive wheel 51 is placed on the rail portion 16 of the foundation slab formwork member 10 and is in a driveable state.

As such, the bolt holes are formed in the driving body 48 and the driving unit housing 44 so that the driving body 48 can maintain a non-driven state or a driving state within the driving unit housing 44. The fixing bolts 46 are inserted into the corresponding bolt holes in the driving state or the driving state.

In the present invention, since the outer sidewall formwork member 30 can be moved back and forth along the foundation slab formwork member 10, the outer sidewall formwork member 30 is easily dismantled and assembled when the culling construction of one paper is completed. By doing so, it is possible to prepare for the construction of the culvert between successive sections again, so that the construction of the culvert can be continued and the air required for the construction of the culvert can be shortened.

In addition, the outer side wall formwork member 30 is a part of the upper steel plate is bolted and coupled to the lower side of the iron plate is to be removable, this is the standard of the culvert to be manufactured, in particular the height of the upper steel plate By appropriately detaching a part, ie, the adjusting member 33, it is possible to eliminate the need to have a new outer side wall formwork member 30 that meets the specifications of the culvert.

In the present invention, the outer side wall formwork member 30 is provided with a steam supply pipe 50 to the outside for supplying steam for the steam promoting curing of the culvert 300. The steam supply pipe 50 is formed with a plurality of steam outlets (not shown), the steam supplied through the steam supply pipe 50 from an external boiler (not shown) is ejected through the steam outlet. Since the steam ejected through the steam outlet rises, the steam supply pipe 50 is preferably located in the longitudinal direction of the culvert 300 in the lower portion of the outer side wall formwork member 30, as shown in FIG. However, since the number and installation position of the steam supply pipe 50 is not necessarily limited thereto, a plurality of steam supply pipe 50 may be arranged at any position of the outer side wall formwork member 30 as necessary. As described above, since the present invention includes a steam supply pipe 50 capable of supplying steam to the outside of the outer side wall formwork member 30, as described later, steam is easily supplied to facilitate the curing of the poured concrete by steam. Therefore, it is possible to shorten the time required for curing the culvert concrete, thereby significantly reducing the air required for the construction of the culvert.

In the present invention, on the upper side of the side wall formwork member 30, a worker walking work platform 38 having a safety handrail 57 is provided in a folding manner. 10 is a front view of the workbench 38, the worker walking workbench 38 provided in the present invention is the outer side wall formwork member 30 is fixed to the foundation slab formwork member 10 in the concrete pouring position If present, as shown in FIG. 10, the state becomes a walkable state, but when the casting of the concrete is completed and the outer sidewall formwork member 30 is separated from the foundation slab formwork member 10 and removed, as shown in FIG. 15. Folded together, they become unable to walk.

Referring to FIGS. 2 and 10, the structure of the work bench 38 will be described. The work bench 38 may include a walking board 58 which can be walked by a worker, and a hinge outside the walking board 58. It is composed of a safety rail 57 connected to be folded and installed, and a support 54 having one side hinged at the lower side of the walking board 58. The other side of the support 54 spans the side of the outer sidewall formwork member 30.

In the walkable state, the safety rail 57 is vertically erected to one side of the walking board 58, and one side of the support 54 extends across the side of the outer sidewall form member 30, thereby lowering the walking board 58. Will be supported. In the improper state of walking, the safety handrail 57 is pivoted and pivoted so that one side of the support 54 does not span the side of the outer side wall form member 30 so that the walking plate 58 is no longer supported. As shown, the walking board is lowered to a position parallel to the outer side wall formwork member 30. As described above, in the present invention, while making the worktable 38, which becomes a walkable state at the time of concrete pouring, to allow the worker to walk safely, the worker can easily work during the concrete placing work, while the concrete placing is When the formwork is completed and moved the worktable 38 is configured to be in a folded state, it was configured so as not to interfere with the movement of the formwork.

Next, in the movable formwork apparatus 200 according to the present invention, an internal formwork apparatus 60 for forming the inner surface of the culvert 300 will be described. 11 is a front view of an embodiment of the formwork device 60 provided in the present invention.

In the present invention, the inner formwork device 60 is formed to be spaced apart from the outer sidewall formwork member 30 by a predetermined interval to form the inner surface of the culvert 300, specifically, as shown in FIG. A side wall plate member 66 facing the inner surface of the side wall concrete of the culvert 300 and an upper slab plate member 64 facing the lower surface of the upper slab concrete of the culvert 300 are provided.

In the present invention, the internal formwork device 60 is expanded when concrete is poured, and when the casting is completed, it is in a state capable of moving in the front and rear direction of the culvert. To this end, the internal formwork device 60 is provided with a base 80 provided with a driving device 62 at the bottom, the base 80 is stretched to move the side wall plate member 66 to the left and right, the upper slab plate Stretching means (70, 71, 72) is provided to move the member 64 up and down to expand / contract the internal formwork device (60).

Looking at the structure of the base 80 and the expansion means (70, 71, 72) through the embodiment shown in Figure 11, the lower portion of the base 80 to raise and lower the base 80 ( 84). In addition, the lower portion of the base 80 is provided with a driving device 62 to allow the base 80 to move in the front and rear direction of the culvert 300 when the base 80 is lowered.

A support pillar 86 for supporting the upper slab plate member 64 is installed at an upper portion of the base 80. In the embodiment shown in FIG. 10, the support pillar 86, the base 80, and the upper slab plate member 64 are integrally connected, and the base 80 is moved by the elevating device 84. Ascending, the upper slab plate member 64 is also raised to be placed in the concrete placing position, and when the base 80 is lowered by the elevating device 84, the upper slab plate member 64 is also lowered to the upper slab It is in a position to contract away from the concrete surface of the. On the other hand, in the position where the base 80 is raised, the drive device 62 is also lifted from the bottom slab of the culvert 300, and when the base 80 is in the lowered position, the drive device 62 is culverted ( The floor slab 300 is placed on the upper surface of the base 80 so that it can move back and forth. A rail 312 may be installed on an upper surface of the floor slab for smooth driving of the driving device 62. The rail 312 may be formed of an L-shaped steel or a steel bar as shown in FIG. However, the rail 312 is not necessarily limited thereto.

On the other hand, the support column 86 installed on the base 80 is provided with elastic means 70 which can move the side wall plate member 66 on both sides from side to side. As shown in FIG. 11, expansion means 70 is provided on the rear surface of the side wall plate member 66 on both sides, so that the upper side of the side wall plate member 66 on both sides is extended by the expansion and contraction of the expansion means 70. Will move to. As an example of the expansion and contraction means 70 for supporting and stretching the side wall plate members 66 on both sides, a hydraulic cylinder using hydraulic pressure may be used, but as a simple structure, the side wall plate members 66 and The connected end is composed of a hinge, and the other end may be configured in the form of a support rod that is configured as a free end and spans the support pillar 86. The supporting rod has an end portion extending over the support pillar 86 in the expanded state of the side wall plate member 66, and in the contracted state, the end portion does not span the support pillar 86, so that the side wall plate member 66 can be contracted. Do it.

In general, each corner of the box-shaped culvert 300 is formed with a haunch, in the case of the culvert 300 having the haunch, the lower end of the side wall plate member 66 has a haunch plate member 68 for forming a haunch portion. Install. One side of the haunting plate member 68 is hinged to the side wall plate member 66, the stretching means 72 to rotate the haunch plate member 68 on the back of the haunch plate member 68 ) Is installed. The expansion means 72 may also be configured as a hydraulic cylinder type, but as shown in the figure has a coupling with a thread formed therein on both sides, by rotating the coupling of the rod member fitted to the coupling It may be composed of a structure that is stretched in length.

In the embodiment shown in FIG. 14, the expansion and contraction means 70 of the side wall plate member 66 is provided only on the upper side of the side wall plate member 66, and the side wall plate member 66 is disposed below the side wall plate member 66. ) Is connected to each other, but also has another expansion means 71 that can be stretched. The expansion means 71 may also have a coupling in which threaded portions are formed therein at both sides thereof, such that the length of the rod member fitted to the coupling is stretched by rotating the coupling.

In addition, the upper portion of the side wall plate member 66 is formed of the adjustment member 63 to play the same role as the control member 33 of the outer side wall formwork member 30 described above, which is the standard of the culvert to be manufactured, Particularly, if the height varies, there is no need to provide a new internal formwork device 60, and as a part of the side wall plate member 66, by appropriately detaching the adjusting member 33 is bolted coupled to manufacture the culverts of different heights When the inner formwork device 60 can be flexibly operated.

Looking at the behavior of the internal formwork device 60, in the concrete placing position for manufacturing the culvert 300, the expansion means (70, 71) and the haunch plate member 68 installed on the back of the side wall plate member 66 Stretching means 72 installed on the back of the elongated respectively, the side wall plate member 66 and the haunting plate member 68 is moved toward the outside. At the same time, the base 80 is also raised, and the upper slab plate member 64 is also raised. At this time, the driving device 62 below the base 80 is in a lifted state from the lower slab. In this specification, the state of such an internal formwork device 60 is referred to as an "expanded state".

When the casting of the concrete is completed and the internal formwork device 60 is removed from the culvert 300, the expansion means 70, 71, and 72 contract and the side plate member 66 and the haunch plate member 68. ) Is moved inward to fall from the inner surface of the culvert 300. At the same time, the base 80 is also lowered so that the upper slab plate member 64 is also separated from the upper slab of the culvert 300. At this time, as the base 80 is lowered, the driving device 62 is placed on the bottom slab 310 (specifically, on the rail), and the internal formwork device 60 can move back and forth. In this specification, the state of such an internal formwork device 60 is referred to as "shrinkage state". 14 and 15 show an installation state of the mobile formwork apparatus 200 according to the present invention, the state of the internal formwork device 60 shown in FIG. 14 is an expanded state and the internal formwork device shown in FIG. 15 ( 60) is a contraction state.

12 shows the front and rear closing plate member 104 for forming the front and rear of the culvert 300. The front and rear closing plate member 104 is made of a steel plate-like member, for the reinforcement as shown in Figure 12, the K-shaped steel 108 and the L-shaped steel 106 may be arranged in a grid shape.

Next, with reference to the accompanying drawings will be described the installation and disassembly of the mobile formwork apparatus 200 according to the present invention, and the method for continuous steam-promoting curing of the culvert using the same.

First, prior to constructing the culvert 300, the work route is selected, the curing facility and the mechanical apparatus are arranged, and subsequently, the trench is drilled along the work route using heavy equipment to prepare for the construction of the culvert 300. When the construction preparation is completed, as shown in FIG. 4, the foundation slab formwork member 10 is installed and the foundation slab closing plate members 102 are coupled to each other before and after the foundation slab formwork member 10. Before placing concrete for the floor slab of the culvert 300, the bottom slab reinforcement 150 is placed and pipe pipe 18 is installed, and then a steel wire is inserted into the pipe pipe 18 to relax. In order to prevent the base slab formwork members 10 on both sides from coming close to each other by a tension force when the steel wire is tensioned, it is also preferable to temporarily install a support (not shown) on the upper part of the base slab formwork member 10. . When the installation of the foundation slab formwork member 10 and the foundation slab closing plate member 102 is completed, the concrete is poured to form the floor slab 310 of the culvert 300.

When the bottom slab 310 of the culvert 300 is cured to a certain degree, as shown in FIG. 13, the reinforcing bar 152 for reinforcing the sidewall and the upper slab of the culvert 300 is reinforced. When the reinforcement of the reinforcing bar 152 is completed, the external formwork device is installed to the outside of the reinforcing bar 152 and the internal formwork device 60 is installed to the inside.

Specifically, the outer side wall formwork member 30 is vertically installed on the upper portion of the foundation slab formwork member 10, and the lower end of the outer side wall formwork member 30 and the upper portion of the foundation slab formwork member 10 are fastened by bolts. The outer side wall formwork member 30 is fixed.

As shown in FIG. 14, the internal formwork device 60 includes an expansion device 70 provided on the rear surface of the side wall plate member 66 and an expansion device 72 provided on the rear surface of the haunting plate member 68. E) to extend the side wall plate member 66 and the hunt plate member 68 toward the outside, and at the same time raise the base 80 so that the upper slab plate member 64 is also in a raised position. The formwork device 60 is brought into an expanded state. At this time, the driving device 62 below the base 80 is in a lifted state from the bottom slab 310. For the convenience of the operator, the work table 38 installed on the upper sidewall formwork member 30 becomes a walkable state. Front and rear surface closing plate member 104 is installed on the front and rear surfaces of the culvert 300.

As such, when the installation of the external formwork device and the internal formwork device 60 is completed, the concrete is poured as shown in FIG. 16. When placing concrete, a space keeping device 42 is installed across the upper sides of the outer sidewall formwork members 30 on both sides to prevent the upper portions of the outer sidewall formwork members 30 from being separated from each other by the pressure of the hardened concrete. It is also preferable. The gap retaining device 42 has a coupling having a threaded portion formed therein at both sides thereof, and may be configured to have a structure in which a length of a rod member fitted to the coupling is stretched and contracted by rotating the coupling. It can also be configured as a device. In the embodiment shown in the figure, the spacing device 42 is configured as a turnbuckle device.

When the casting of the concrete is completed, the curing cover (not shown) is covered to cover both the outer surface of the external formwork and the open upper slab surface. When both the external formwork and the upper slab surface is covered by the curing cover, the boiler supplies steam to the steam supply pipes 50 and 61 on the bottom slab 310 of the external formwork and the culvert. The supplied steam is ejected from the steam outlet of the steam supply pipe 50 to fill the inside of the curing cover, and the concrete poured by the heat of the steam is steam-promoted. At this time, it is possible to control the correct curing temperature and time by installing an automatic temperature control device. As described above, in the present invention, by supplying steam by supplying steam by placing steam supply pipes 50 and 61 on the external formwork and the bottom slab 310 of the culvert, it is possible to facilitate the curing of the concrete by easily steam curing the poured concrete. This makes it possible to significantly reduce the air. In addition, it is possible to prevent deterioration such as cracking, peeling, and deterioration of concrete through steam curing, and by supplying steam having a temperature and humidity suitable for curing, cracking or creep may occur due to dry shrinkage. Will be able to prevent.

On the other hand, the curing cover may be made of a simple bag shape, and in another embodiment, the outer surface of the outer formwork member is made of a plate is covered with a predetermined distance from the outer sidewall formwork member 30, the bagged form on the open surface of the upper slab It may be configured in the form of being covered with.

In the present invention, the construction of the culvert 300 is to complete the construction of one section, the construction of the culvert next to the adjacent section of the culvert 300 of the completed one section.

When the steam-promoting curing is completed and the production of the culvert 300 is completed, the above-described digging work, the installation work of the base slab formwork member 10 and the foundation slab closing plate member are formed in order to form the neighboring culvert 300. 102) to complete the production of the floor slab 310 of the neighboring culvert 300 by performing the coupling work, pipe pipe and floor slab reinforcement reinforcement work, steel wire tension work, floor slab concrete pouring work.

The rail 312 is installed on the upper surface of the bottom slab 310 of the neighboring culvert 300 so that the driving device 62 provided in the base 80 of the internal formwork device 60 can be driven. On one side of the rail 312 is installed a steam supply pipe 61 connected to the external boiler. Steam curing is completed to remove the external formwork device and the internal formwork device 60 from the culvert 300 is completed construction. Specifically, the front and rear surface closing plate member 104 installed on the front and rear surfaces of the culvert 300 is removed. In addition, the outer side wall formwork member 30 of the outer formwork device is separated from the base slab formwork member 10, and the drive unit housing 44 of the drive unit 32 mounted to the outer sidewall formwork member 30 is driven. ) And lowered in the fixed bolt 46 to position the driving wheel 51 of the driving body 48 on the rail portion 16 formed on the upper surface of the reinforcing member 14 of the foundation slab formwork member 10. To be. As the driving wheel 51 of the detached outer sidewall formwork member 30 is driven along the rail portion 16, the detached outer sidewall formwork member 30 is easily fabricated for culvert 300 between neighboring grounds. It moves to the rail part 16 of the neighboring foundation slab formwork member 10 installed previously. The moved outer sidewall formwork member 30 is again fastened and fixed with the foundation slab formwork member 10. At the time of movement of the outer side wall formwork member 30, it is preferable that the worktable 38 is made in a folded position so as not to interfere with the movement work.

On the other hand, the internal formwork device 60, by contracting the expansion means (70, 71, 72) so that the side wall plate member 66 and the haunch plate member 68 is moved toward the inside of the culvert 300 At the same time, the base 80 is also lowered so that the upper slab plate member 64 is separated from the upper slab of the culvert 300 so that the inner formwork device 60 is contracted as shown in FIG. 15. Will be made. In this contracted state, the base 80 is lowered so that the driving device 62 is placed on the bottom slab 310 (specifically, on the rail) so that the internal formwork 60 can move back and forth along the rail 312. Becomes In order to manufacture the culvert 300 between neighboring grounds, since the bottom slab 310 of the neighboring grounds is already installed and the rail 312 is installed thereon, the driving device 62 of the internal formwork 60 is already The rails 312 of the completed culverts and the neighboring grounds move along the rails 312 on the bottom slab 310 of the culverts and are easily positioned on the bottom slab 310 of the culverts of the neighboring grounds. When the movement of the internal formwork device 60 is completed, as described above, the internal formwork device 60 is made to be in an expanded state again, thereby making it possible to place concrete for culvert production. Subsequent operations will be repeated since the same contents as described above will be omitted.

In the above embodiment, the floor slab reinforcement 150 is installed first and the bottom slab 310 is installed after the sidewall and upper slab reinforcement 152 of the culvert 300 has been described, but the bottom slab reinforcement It is also possible to pour the bottom slab 310 after installing the side walls and the upper slab reinforcing bars 152 simultaneously with the installation of the reinforcing bar 150. After the construction of the floor slab 310 is completed, as described above, the external formwork device and the internal formwork device 60 are assembled and installed, respectively, and the concrete is poured to form the culvert 300.

As described above, the mobile steel formwork device according to the present invention is constructed as a prefabricated structure, and in particular, since the outer sidewall formwork member and the inner formwork device each have a structure that can be easily moved after the completion of construction, the construction of one culvert Since it can be easily moved for the construction of culverts between neighboring lands, the construction of continuous culverts is very easy.

In addition, since the mobile steel formwork according to the present invention is easy to assemble and disassemble, unlike the prior art, it is possible to shorten the formwork and copper bar installation period, it is possible to use repeatedly.

In particular, the mobile steel formwork apparatus according to the present invention is provided with a configuration that can supply steam to the formwork member, it is possible to easily supply steam without additional equipment, it is easy to cure the steam of the culvert, the curing period of the culvert By shortening it is possible to shorten the air required for the entire culvert construction. In addition, it is possible to shorten the air by shortening the curing period of the concrete, and even in winter and weather worsening adaptability is excellent, does not cost a separate curing cost.

Furthermore, since the movable steel formwork device according to the present invention is made of steel, it is excellent in rigidity, so that deformation or warpage does not occur during work, and thus sufficient compaction of concrete can be achieved, thereby increasing durability, watertightness, etc. of concrete. The quality of the culvert is improved. In addition, the surface of the product is beautiful by using a movable steel formwork.

Claims (8)

As a mobile formwork for continuously manufacturing the concrete culvert 300, The base slab formwork member 10 and the base slab formwork member 10 for forming the bottom slab 310 of the culvert 300 can be moved back and forth along the upper surface of the foundation slab formwork member 10 when the culvert construction between the lands is completed. It is separated from the foundation slab formwork member 10 and moves for culling construction between neighboring lands, and is installed outside the side wall portion of the culvert 300 to form the side wall portion 320 of the culvert, and the steam supply pipe 50 is disposed on the outer surface. It is installed to supply the steam after the culvert concrete pouring the outer side wall formwork member 30 to steam the curing of the concrete, and the foundation slab closing plate for forming the front and rear surfaces of the bottom slab 310 of the culvert 300 An external formwork device including a member 102 and a front and rear finish plate member 104 for forming a front and rear surface of the culvert 300; And An inner formwork device 60 which forms an inner surface of the culvert 300 by being spaced apart from the outer formwork device by a predetermined distance, the sidewall plate member 66 facing the inner surface of the sidewall concrete of the culvert 300; The upper slab plate member 64 facing the lower surface of the upper slab concrete of the culvert 300 is stretched and moves the side slab plate member 66 to the left and right to move the upper slab plate member 64 up and down to form an internal formwork. Expansion means (70, 71, 72) that can be expanded / contracted to the device 60, and the drive device 62 to move back and forth, the expansion means (70, when placing concrete for culvert construction) 71 and 72 to extend the side wall plate member 66 and the upper slab plate member 64, and when the culling is completed, the expansion means 70, 71 and 72 are contracted to contract the side wall plate member. At the same time as the 66 and the upper slab plate member 64 in a contracted state When the drive device 62 is in a driveable state and the completion of the culling construction between one section is completed, the internal formwork device 60 including the base 80 that can move for culling construction between neighboring grounds is provided. Movable formwork for making culverts. The method of claim 1, The base slab formwork member 10 is provided with a rail portion 16 for the movement of the outer sidewall formwork member 30, and the outer sidewall formwork member 30 is driven along the rail portion 16 to the The movable formwork for culvert production, characterized in that the drive unit 32 for moving the outer sidewall formwork member 30 back and forth is provided. The method according to claim 1 or 2, On the bottom slab 310 of the culvert, the rail unit 312 is provided to move the internal formwork device 60, and the culvert concrete is poured together with the steam supply pipe 50 provided in the outer side formwork member 30. After the steam supply pipe to one side of the rail unit 312 so as to cure the concrete, the movable formwork for culvert production, characterized in that it is provided. The method according to claim 1 or 2, The top of the outer side wall formwork member 30 is foldable and is expanded in a fixed installation state of the outer side wall formwork member 30 to become a walkable state that an operator can walk, and when the outer side wall formwork member 30 moves. The portable molder for culvert production, characterized in that the worker walking work platform (38) is provided with a safety handrail (57) that is folded and is unable to walk, which is unable to walk. The method according to claim 1 or 2, A lifting device 84 capable of lifting the base 80 up and down is provided at the bottom of the base 80, and a support pillar for supporting the upper slab plate member 64 is provided at the top of the base 80. 86 is provided, and the support pillar 86 is provided with a movable form for culvert, characterized in that each of the expansion means 70 that can move the side wall plate member 66 on both sides by expansion and contraction. Device. The method according to claim 1 or 2, As a part of the side wall plate member 66 and the outer side wall formwork member 30 of the inner formwork device 60, detachable adjustment is possible to increase or decrease the length in the height direction during fabrication of different culverts. Mobile formwork for culvert production, characterized in that the members (33,63) are provided. The base slab formwork member 10 for forming the bottom slab 310 of the culvert 300 and the back and forth movement along the upper surface of the base slab formwork member 10 are possible to form the side wall portion 320 of the culvert Foundation for forming the front and rear surfaces of the outer side wall formwork member 30, which is installed outside the side wall portion of the culvert 300 and the steam supply pipe 50 is installed on the outer surface, and the bottom slab 310 of the culvert 300. An external formwork device including a slab closing plate member 102 and a front and rear closing plate member 104 for forming a front and rear surface of the culvert 300; And an inner formwork device 60 which forms an inner surface of the culvert 300 by being spaced apart from the outer formwork device by a predetermined distance, and the sidewall plate member 66 facing the inner surface of the sidewall concrete of the culvert 300. The upper slab plate member 64 facing the lower surface of the upper slab concrete of the culvert 300 is stretched and moves the sidewall plate member 66 to the left and right and the upper slab plate member 64 to move up and down inside. Internal formwork device 60 including expansion means (70, 71, 72) that can expand / contract the formwork device (60), and a base (80) provided with a drive device (62) to move back and forth As a continuous method of steam-promoting curing of a culvert using a portable formwork for making a culvert, After combining the foundation slab formwork member 10 and the foundation slab closing plate member 102, the inner side of the slab reinforcement 150 and the sidewall and upper slab reinforcement 152 of the culvert 300 to the inside, Construct the floor slab 310 by pouring concrete, The base slab formwork member 10 and the base slab closing plate member 102 and the outer sidewall formwork member 30 and the front and rear surface closing plate member 104 are combined to complete the installation of an external formwork device. Installing the inner formwork device 60 in a contracted state inside the reinforcing bar 152, Extending and contracting means (70, 71, 72) provided in the internal formwork device 60 and the lifting device 84 of the base 80 is raised to raise the side wall plate member 66 and the upper slab plate member ( Expand the internal formwork device 60 by expanding 64, Constructing a culvert 300 by placing concrete in the space between the external formwork device and the internal formwork device 60, After covering the curing cover to cover the entire upper slab of the external formwork and the culvert, the steam is supplied to the steam supply pipe 50 of the outer side wall formwork member 30 and the steam supply pipe 61 on the bottom slab 310 of the culvert Promote curing by steam (300), When curing of the culvert 300 is completed, the coupling of the outer formwork device is released, the expansion means 70, 71, 72 of the inner formwork device 60 are contracted and the lifting device 84 of the base 80 is contracted. The inner die device 60 is contracted by lowering the side wall plate member 66 and the upper slab plate member 64 to make the driving device 62 of the base 80 a driveable state. State, The internal formwork device 60 and the external formwork device for steam cure continuous construction method characterized in that for moving the culvert 300 between the neighboring land construction. The method of claim 7, wherein After making the inner formwork 60 in a contracted state, The foundation slab formwork member 10 and the foundation slab closing plate member 102 are combined to the neighboring section of the culvert 300 completed in the above process for continuous construction of the culvert between neighboring grounds, and the bottom of the culvert 300 After laying the slab reinforcement 150 and the sidewalls of the culvert 300 and the upper slab reinforcement 152, the concrete is poured to construct a floor slab 310, The external side wall formwork member 30 removed from the completed culvert 300 is moved and combined again to install an external formwork device, The internal formwork device 60 in the contracted state is moved to the upper side of the completed bottom slab 310 of the culvert 300 adjacent to the expanded state, and the concrete is poured again to construct a continuous culvert Continuous steam curing curing method.