KR20080025219A - Underground outer wall construction method using deck-plate and deck-plate for constructing underground outer wall - Google Patents

Abstract

A construction method of an underground wall using a deck plate is provided to utilize a retaining wall as a permanent wall of a building and to make construction work simple and to increase an effective space of a building. A construction method of an underground wall using a deck plate comprises the steps of: driving H-piles(1) on the boundary between a pit excavation area and an adjacent area; inserting a deck plate(10), composed of a support plate(20) excavating the pit excavation area and facing the adjacent area, a reinforcement net coupled to the support plate and facing the pit excavation area and a guide device(40) coupled to the reinforcement net in a vertical direction to be supported to the H-beams at two sides, between the H-beams; coupling a form to the inside of the deck plate in the pit excavation area; and after placing and curing concrete between the support plate and the form, and stripping off the form and constructing a concrete wall.

Description

Construction method of underground wall using deck plate and deck plate for construction of underground wall {UNDERGROUND OUTER WALL CONSTRUCTION METHOD USING DECK-PLATE AND DECK-PLATE FOR CONSTRUCTING UNDERGROUND OUTER WALL}

1 is a view for explaining the construction form of a conventional retaining wall;

2 is a view for explaining the proposed technique for using a conventional earthen wall as a permanent structure;

3 is a view for explaining the technical concept of the construction method of the underground wall using the deck plate and the deck plate for the construction of the underground wall according to the present invention;

4 is a perspective view for explaining a deck plate for the construction of an underground wall according to a preferred embodiment of the present invention;

5 is a flowchart for explaining a method of constructing an underground wall using a deck plate according to a preferred embodiment of the present invention;

6A to 6E are views sequentially showing a method of constructing an underground wall using a deck plate according to a preferred embodiment of the present invention;

7 is a view for explaining a modification of the deck plate for the construction of the underground wall according to the present invention;

8 and 9 are views for explaining an example of the construction method of the underground wall using the deck plate according to the present invention when applying the strut support method;

10 and 11 are views for explaining an example of the construction method of the underground wall using the deck plate according to the present invention when applying the ground anchor (earth anchor) support method;

12 is a view for explaining an example of the construction of the underground structure by applying the construction method of the underground wall using the deck plate according to the present invention.

Explanation of symbols on the main parts of the drawings

1, 1 ': Thumb pile 1b, 1a: section steel

1d: crevice support 2: inner flange

3: outer flange 4: web (web)

5: earth plate 10: deck plate

20: support plate 30: rebar network

32: horizontal rebar 34: vertical rebar

36: reinforcing bar 40, 40 ': guide bar

42, 42 ': (Guide sphere) Front 44: (Guide sphere) Rear

46: (Guide sphere) Channel 48: (Guide sphere) Connecting surface

60, 60 ': wall reinforcement 62: formwork support

70: formwork 72: formwork

80: spacer 82: belt

100: ground anchor

The present invention relates to a deck plate for the construction of the underground wall and the construction of the underground wall using the deck plate, and more specifically, to support the load function of the structure of the earthquake temporary function used for the purpose of supporting external forces such as earth pressure The present invention relates to a method of constructing an underground wall using a deck plate having a function and a wall forming function of a main body structure, and a deck plate for constructing an underground wall.

Cushion temporary installations are temporary structures installed in excavated underground spaces to prevent collapse of adjacent ground when constructing underground structures. Such temporary fence facility is widely used in civil construction, such as subway construction, and in the case of construction, it is used in large-scale construction of basement of buildings. In general, underground excavation is usually put on the slope to maintain the stability of the ground. However, in order to construct the foundation and basement of the structure by using the land more effectively, the slope is not provided during the excavation, and vertical excavation is usually performed. Therefore, in order to prevent the collapse of the ground due to this is to install the earthquake tents in the vertical plane position.

1 is a view for explaining the construction form of a conventional retaining wall.

Referring to FIG. 1, in the construction of a conventional retaining wall, a thumb pile 1, such as an H pile, is installed at regular intervals at a boundary between a trench area and an adjacent area where a building is to be built. And the earthwork plate (2) is installed between the thumb pile (1) while proceeding the excavation work, and by installing a strut (strut) in the excavation area in which the building is built to support the retaining wall. At this time, various supporting methods such as strut, racker, ground anchor, soil nailing, IPS (innovative prestressed support), and PS-Beam are applied to support the wall. . As such, when the wall is completed, the wall of the building is constructed at a certain distance from the wall, and the wall of the building is backfilled between the wall and the wall of the building.

However, such a conventional method has a problem of reducing the use efficiency of the area in which the building is constructed because the area for installing the temporary wall, and the area between the wall and the building wall is required. In order to overcome such problems, a technique has been proposed to efficiently use limited resources and to reduce construction costs by enabling the temporary block installed as a temporary structure to be used as part of a permanent facility.

First, the Republic of Korea Patent Publication No. 10-0313721 "Design method of synthetic underground retaining wall and construction method of building underground retaining wall using temporary mud structure" is to be integrated with the concrete retaining wall to be formed after the excavation of the inside of the mud wall. For the purpose of reinforcing strength through the construction of H-beams or reinforcing bars or sheet piles, the reinforcement means are installed and used as a part of the construction underground wall. It proposes a method of building the retaining wall in the basement of the building.

And the Republic of Korea Patent Publication No. 10-0313720 "building method of underground structure of the building using the temporary steel wall braces as part of the permanent structure" is a temporary facility to temporarily install a temporary brace for the construction of the underground structure of the building It is proposed a technology that can be expected to shorten the construction period, save resources, and reduce construction costs by reducing the dismantling work of temporary braces by using it as a part of.

In addition, Korean Laid-Open Patent Publication No. 10-2005-0057811 "Underground retaining wall construction method using a temporary retaining structure" is carried out to excavate the inside of the retaining wall and to strengthen the strength through the integration with the concrete retaining wall to be formed later It is proposed to install the concrete retaining wall to be integrated with the support column by installing concrete after attaching the support column vertically to the pile, reinforcing bar or sheet pile.

These prior arts are all the technology to use the temporary wall as a basement wall of the building, Figure 2 is a schematic view showing the construction technology of the conventional wall proposed as such.

Referring to Figure 2, the construction of the retaining wall according to the prior art is the installation process of the installation of the thumb pile 1 and the earth plate 2 is the same as the construction of the conventional retaining wall, but the reinforcing member (to face the trench area ( By fixing the 500 to the thumb pile (1) so as to contact the earthen wall to form a building wall to use the earthen wall as a temporary facility as a permanent wall of the building.

According to the prior art as described above, since the area between the wall and the building wall can be utilized, there is an advantage of increasing the use efficiency of the area in which the building is built.

However, this conventional technology has a limitation that the area where the wall is installed cannot be used as a whole. In addition, since the earth plate 2 functions as an external formwork of the building wall due to the characteristics of the construction method, there is a problem in that the earth plate 2 used in the construction of the retaining wall after completion of the building wall cannot be removed. In addition, according to the prior art, there is a problem in that for the construction of the building wall to install the reinforcing member 500 for concrete reinforcement, and to configure the reinforcement structure separately.

Therefore, the prior art is effective in increasing the effective space to be installed and using the temporary facility as a building wall which is a permanent facility, but there is a point to be improved as described above.

Therefore, the present invention improves the problems of the prior art, it is possible to utilize the earthen wall as a temporary facility as a building wall as a permanent facility, while simplifying the construction, a new type of deck that can further increase the effective space of the building An object of the present invention is to provide a deck plate for the construction of underground walls using plates and the construction of underground walls.

On the other hand, the present inventor has proposed a connection structure to form a deck plate or wall formwork having sufficient rigidity and modular construction by pre-production through the international application application number PCT / KR2006 / 000913 "Connecting Structure".

In addition, the present inventor has proposed a multi-directional deck plate that stably bears the load on the deck plate even if the support placed on its lower surface is installed in any direction by taking a multi-directional truss structure using such a prior application connection structure.

Therefore, another object of the present invention is to improve the problems of the prior art by applying a multi-directional deck plate proposed by the present inventors in place of the earth plate instead of the earth plate, both the thumb pile and the multi-directional deck plate installed on the temporary structure is a permanent structure It is to provide a deck plate for the construction of underground walls and the construction of underground walls using a new type of deck plate that can be used as.

In particular, the present invention is to use the multi-directional deck plate of the underground wall using a new type of deck plate that can be used as a permanent support pile for the structure, the formwork, including the earthen board function and reinforcement, the thumb pile It is an object to provide a deck plate for the construction method and construction of underground walls.

According to a feature of the present invention for achieving the above object, the present invention in the underground wall construction method using a deck plate to enable the earthquake temporary installation as part of the permanent facility, the excavation area and the adjacent area boundary to be excavated A support pile directed to the direction of the adjacent region while excavating the trench region, a rebar network coupled to the support plate and directed toward the trench region, and vertically to be supported by the thumb piles on both sides of the rebar network. Sandwiching the deck plate formed between the thumb pile having a guide mechanism coupled in a direction; Coupling the formwork to the inside of the deck plate in the trench area; Placing concrete between the support plate and the formwork to cure, and the step of constructing the concrete wall by dismantling the formwork.

In such a method for constructing an underground wall using a deck plate according to the present invention, the deck plate is sandwiched between the thumb pile, removing the soil spilled into the gap between the thumb pile and the deck plate, and filling the gap; It may further comprise the step of installing a reinforcement means on the thumb pile for integration with the concrete wall to be formed later.

In the construction method of the underground wall using the deck plate according to the present invention, the deck plate is sandwiched between the thumb pile, the spacer is coupled to the inner side of the thumb pile, and after the construction of the concrete wall, the band on the inner surface Can be installed.

According to another feature of the present invention for achieving the above object, the present invention is a deck plate for the construction of the basement wall for allowing the use of the temporary housing as part of the permanent facility, the horizontal reinforcing bar and the vertical reinforcing bar is arranged to interweave A reinforcing bar network comprising: a reinforcing bar supporting the horizontal reinforcing bars and the vertical reinforcing bars by vertically connecting the overlapping points of the horizontal and vertical bars; A support plate coupled to one side of the reinforcing bar network to support the ground of the adjacent area of the trench area in which the building is constructed; And a guide tool coupled to the both sides of the reinforcing bar in a vertical direction so as to be caught by the thumb pile installed at the boundary between the trench region and the adjacent region, so that the guide tool is caught inside the thumb pile. While the support plate is positioned between the outer flange and the inner flange of the thumb pile is inserted and installed between the successive piles installed.

In the deck plate for the construction of the underground wall according to the present invention as described above, the guide sphere is a shape steel having a front surface, a rear surface and a connection surface, so that an opening is formed in the opposite direction of the connection surface, and a channel is formed between the front surface and the rear surface. The inner flange of the thumb pile is coupled to be positioned on the channel.

In the deck plate for the construction of the underground wall according to the present invention, the reinforcing support of the reinforcing bar is coupled to the formwork support at the inner end so that the formwork is coupled to form a concrete wall to maintain a constant distance from the reinforcing bar. can do.

3 is a view for explaining the technical concept of the construction method of the underground wall using the deck plate and the deck plate for the construction of the underground wall according to the present invention.

Referring to Figure 3, the present invention is to use a deck plate that is specially configured to make the construction more convenient than the prior art, and to further expand the area where the building is constructed, the construction of the construction wall and the permanent building wall Let's do it at the same time.

In the construction method of the underground wall using the deck plate according to the present invention, the thumb pile (1) is put at the boundary of the trench region and the adjacent region to be excavated first, and the excavation of the trench region supports the plate facing in the direction of the adjacent region ( 20), the reinforcing bar 30 coupled to the support plate 20 and directed toward the trench region, and the guide tool 40 coupled to the rebar net 30 in the vertical direction so as to be supported by the thumb piles 1 on both sides. Insert the deck plate 10 is provided between the thumb pile (1). After the formwork 70 (see FIG. 6D) is coupled to the inside of the deck plate 10 in the trench area, and the concrete is poured between the support plate 20 and the formwork 70 to cure the formwork 70. The concrete wall is constructed by dismantling.

According to the construction method of the underground wall using the deck plate of the present invention as described above, the building wall is constructed to the outside (h, Figure 3) than the prior art to ensure a wider construction area of the building. In addition, in the prior art, after constructing the temporary wall of the temporary wall, the construction of the wall of the building was performed separately, but the present invention shortens the air since the construction of the temporary wall of the wall and the construction of the wall of the building are performed by a single process, and uses various subsidiary materials. There is an advantage that can be removed. In particular, in the prior art, the earth plate (usually the earth plate thickness is 80 to 120mm) of the temporary facility is left as it is, there is a loss of material, according to the present invention, the deck plate 10 is coupled to the support plate 20 of 10 to 12mm thickness And using the wall instead of the earth plate when constructing the wall is used as it is to reduce the loss of material.

Such a construction method of the underground wall according to the present invention is made using a specially designed deck plate (10). Deck plate 10 according to the present invention comprises a reinforcing bar 30, the support plate 20 and the guide tool 40. At this time, the reinforcing bar 30 is disposed so that the horizontal reinforcing bar 32 and the vertical reinforcing bar 34 are intertwined with each other, and the horizontal reinforcing bar 32 by vertically connecting the overlapping points of the horizontal reinforcing bar 32 and the vertical reinforcing bar 34. And vertical reinforcing bar 34 is made of a reinforcing bar support 36 to be fixed. And the support plate 20 is a plate that is coupled to one side of the reinforcing bar network 30 to prevent ground subsidence of the adjacent area of the trench area on which the building is built, and serves as a soil plate at the same time the formwork of the outer surface during concrete pouring Do it. The guide tool 40 is coupled in parallel to both sides of the reinforcing bar 30 in the vertical direction so as to be caught by the thumb pile 1 installed at the trench region and the adjacent region boundary.

Deck plate 10 having such a configuration so that the guide sphere 40 is caught on the inside of the thumb pile 1, the support plate 20 is the outer flange 3 and the inner flange 2 of the thumb pile (1) While being positioned between the) is inserted and installed between the successive piles (1) installed. Therefore, if the deck plate 10 according to the present invention is applied, it is not necessary to install a separate earth plate to form the earthen wall, which is a temporary facility, and can simplify the reinforcement work that must be performed when constructing a building wall later.

Such deck plate 10 is preferably configured by applying the connecting structure proposed by the inventor through the international application application number PCT / KR2006 / 000913 "Connecting Structure". That is, in order to be applied to the building wall which is the main building, it should have sufficient rigidity and modular construction by pre-production. The multi-directional deck plate applying the connection structure proposed by the present inventor through the application is applied to the wall of the structure. This is because it has sufficient rigidity to be applied and modular construction by pre-production is possible.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 4 to 12. Meanwhile, the drawings and detailed descriptions of the construction, the operations and the effects thereof, which can be easily understood from the general construction method of the wall, the various equipment, the mechanism, the required materials, and the related technologies in the drawings, will be briefly or omitted. The relevant parts are shown in the center.

Figure 4 is a perspective view for explaining the deck plate for the construction of the basement wall according to the preferred embodiment of the present invention, Figure 5 is a description of the construction method of the underground wall using the deck plate according to the preferred embodiment of the present invention 6a to 6e are views showing sequentially the construction method of the underground wall using the deck plate according to a preferred embodiment of the present invention, Figures 7 to 12 are for the construction of the underground wall according to the present invention It is a figure for demonstrating the modification of a deck plate.

4 and 7, the deck plate 10 according to the preferred embodiment of the present invention includes a reinforcing bar 30, a support plate 20, and a guide tool 40.

At this time, the reinforcing bar 30 is disposed so that the horizontal reinforcing bar 32 and the vertical reinforcing bar 34 are intertwined with each other, and the horizontal reinforcing bar 32 by vertically connecting the overlapping points of the horizontal reinforcing bar 32 and the vertical reinforcing bar 34. And vertical reinforcing bar 34 is made of a reinforcing bar support 36 to be fixed. Reinforcing bar support 36 may be generally applied to the welding, wire fixing method for fixing the horizontal reinforcing bar 32 and the vertical reinforcing bar 34, in the present embodiment has been proposed by the present inventors through the application as described above Multi-directional deck plate with connection structure, to have sufficient rigidity.

And the support plate 20 is coupled to one side of the reinforcing bar 30 to support the ground of the adjacent area of the trench area in which the building is built. Such a support plate 20 functions as a soil plate and at the same time functions as a formwork of the outer surface during concrete pouring. In this embodiment, since the present invention is a multi-directional deck plate configured by applying the connection structure proposed by the present inventors, such as the reinforcing bar 30, the support plate 20 is a reinforcing support of the reinforcing bar network 30 ( It is fixed to 36 is coupled to the rebar network (30).

The deck plate 10 according to the present embodiment is provided with a guide hole 40 for easily inserting the deck plate 10 in the thumb pile (1). The guide sphere 40 is coupled to the both sides of the reinforcing bar 30 in the vertical direction so as to be caught in the thumb pile (1) is installed in the trench region and the adjacent region borders the deck plate (10) 1) to act as a guiding when inserted between the deck plate 10 to be supported by the thumb pile (1) on both sides. Various forms can be applied to the guide tool 40 as described above. As the guide tool 40 applied to the main drawing for explaining the present embodiment, as shown in FIG. 4, a shape steel having a front face 42, a rear face 44, and a connection face 48 is applied. The guide sphere 40 has an opening formed in a direction opposite to the connecting surface 48, and a channel 46 is formed between the front surface 42 and the rear surface 44 so that the inner flange 2 of the thumb pile 1 is formed. ) Is combined to be positioned on channel 46. Such a guide tool can be applied to a guide tool 40 'using a rectangular bar as shown in FIG. In this case, the front surface 42 'of the guide sphere 40' is guided so that the deck plate 10 is inserted based on the inner flange 2 of the thumb pile 1 as in the above-described example.

On the other hand, as shown in Figure 6c, in the deck plate 10 according to the present embodiment, the formwork support 62 is installed so that the formwork (70 (see FIG. 6D) for the concrete placement later is constant from the reinforcing bar 30 You can keep the distance. Such formwork support 62 is coupled to the inner end of the reinforcing support 36 so that the formwork 70 coupled to form a concrete wall later to maintain a constant distance from the reinforcing bar 30. Of course, such a formwork support 62 may be installed separately during the construction of the underground wall, if necessary.

5 to 6E, the construction method of the underground wall using the deck plate 10 as described above, first put the thumb pile (1) (see Fig. 6a), while digging the inside of the area to be excavated deck plate (10) is sandwiched between the thumb pile (1) (see Fig. 6b). This process is to install a new type of earth wall, unlike the prior art. In other words, the deck plate 10 according to the present invention has the same function as the conventional earth wall. At this time, the thumb pile 1 is fixed by filling the concrete at the tip as in the usual construction method (see Fig. 12). Coupling of the deck plate 10, as described above, so that the guide sphere 40 is guided by the inner flange (2) of the thumb pile 1 is inserted and installed between the two thumb pile (1). And reinforcement means can be installed in the thumb pile 1 for integration with the concrete wall to be formed later, such reinforcement means, as shown in Figure 6c, the wall on the inner flange (2) of the thumb pile (1) It can be achieved by installing the reinforcement 60, 60 '(reinforcement rib, etc.). And, if necessary, relieve the secondary muscles.

After this process, the earth and sand leaked into the gap between the thumb pile 1 and the deck plate 10 is removed, and the gap is filled with grout or the like (see FIG. 6B). When this process is completed, the formwork 70 for forming the wall inside the deck plate 10 is coupled using the formwork 72 (see FIG. 6D). On the other hand, when the formwork support 62 is not installed on the deck plate 10, as shown in Figure 6c, the formwork support 62 so that the formwork 70 is supported at a uniform distance from the rebar net 30 Install it. Of course, if the formwork support 62 is installed when the deck plate 10 is formed, this process will be excluded. After this process, the concrete is poured and cured, and the formwork 70 is dismantled to complete the basement outer wall of the present structure.

As described above, in the construction method of the underground wall using the deck plate according to the present embodiment, the deck plate 10 is installed to be supported by the inner flange 2 of the thumb pile 1 so that the concrete outer wall is integrated with the thumb pile 1. By forming the building walls, the construction area of the building can be more secured.

Such a construction method of the underground wall using the deck plate according to the present invention is the most basic embodiment of the present invention, this construction method is described on the basis of the case that does not need to apply a separate support method to the trench area. For example, when the present inventors use the two-row piles proposed through the international application No. PCT / KR2006 / 001359 "Underground mud wall for civil engineering and its construction method" filed on April 12, 2006, The same invention can be easily applied. In addition, the present invention can be applied to various support methods commonly used, such as when to use a brace or anchor as another example to be described later. For example, in the following description, the prop support method (Figs. 8 and 9) and the ground anchor support method (Figs. 10 and 11) are illustrated, but the construction method of the underground wall using the deck plate according to the present invention is a nail nailing ( Various support methods such as soil nailing, IPS (innovative prestressed support), and PS-Beam can be applied.

8 and 9 are views for explaining an example of the construction method of the underground wall using the deck plate according to the present invention when applying the strut support method, Figures 10 and 11 are ground anchors (earth anchor) In the case of applying the support method is a view for explaining an example of the construction method of the underground wall using the deck plate according to the present invention, Figure 12 is an underground structure by applying the construction method of the underground wall using the deck plate according to the present invention It is a figure for demonstrating an example to construct.

8 and 9, the construction method of the underground wall using the deck plate according to the present embodiment makes it easy to apply the brace support method. That is, the construction of the thumb pile (1), the deck plate 10 is sandwiched between the thumb pile (1), and then the spacer 80 to the thumb pile (1) in order to be able to install the band-piece (82) It is to be installed, so that the belt 82 can be installed later. Of course, the installation process of the brace is the same as the existing construction method and the process after the installation of the deck plate 10 is also the same as the method in the above example.

More specifically, in the case of applying the strut method, which is a support method, to the construction method of the basement outer wall using the deck plate according to the present embodiment, first construct the thumb pile 1, and then perform the primary excavation by a certain depth. After the implementation, the deck plate 10 is sandwiched between the thumb piles 1 according to the primary excavation depth to slide in the excavation direction. And the spacer 80 is installed in the thumb pile 1, the spacer 80 is to prevent the deck plate 10 sandwiched between the thumb pile (1) to be caught in the belt 82 while sliding down. Since it is to be installed, the spacer 80 is installed at the installation point of the strip 82. At this time, the spacer 80 is fixed to the thumb pile 1 mainly by fastening the bolt, the spacer 80 and the bolts are separated and recovered before the concrete pouring during the step-down disassembly of the strut (strut). In this way, after the spacer 80 is installed, the first strip 82 is installed, and thus, the first brace is constructed. This process is repeated continuously to complete the installation work to the bottom. Next, as shown in Figure 12, the bottom formwork 70 is coupled to the deck plate 10 to finish the process of installing the reinforcement and formwork for the lowermost basement outer wall wall, and finished the other bottom reinforcement and formwork including the slab After that, the concrete is poured into the lowest floor to cure. And if the concrete curing of the lowermost floor meets a certain standard, the first stage braces, strips and spacers installed on the upper part is removed, and by repeating the above-described process to the continuous construction to the top. At this time, the recent development technology may be used as a permanent structure without removing the member including the brace because of the characteristics of the method, such as the SPS method. In this case, the slab deck is placed on the upper flange surface of the brace and concrete is cast on the slab and the basement wall at the same time.

Although not described in the drawings, the raker support method may be easily applied in connection with such a support method.

10 and 11, the construction method of the underground wall using the deck plate according to the present embodiment can be easily applied to the ground anchor (earth anchor) supporting method. In this construction method, first, the thumb pile (1 ') is constructed, in which case the thumb pile (1') is applied to the "c" shaped beams (1a, 1b), not the above-described H-beam form. Accordingly, a gap c is formed between the two thumb piles 1 ', and a gap support 1d is installed in the gap c to support the two sections 1a and 1b. After the thumb pile 1 'is constructed, the primary drilling is performed by a predetermined depth, and the deck plate 10 is sandwiched between the thumb piles 1' according to the primary drilling depth to slide in the drilling direction. As described above, if necessary, the spacer 80 for installing the belt 82 is provided. Next, install the first strip, according to the construction of the first ground anchor 100, and repeats this process continuously to complete the installation work to the bottom. Next, as shown in Figure 12, the bottom formwork (70) is coupled to the deck plate 10 to finish the process of installing the reinforcement and formwork for the lowermost basement outer wall wall, and other lower floor reinforcement and formwork including slab After finishing, the concrete is poured into the lowest floor to cure. And if the concrete curing of the lowest floor meets a certain standard, the first stage of the ground anchors, strips and spacers installed on the top is removed, and by repeating the above-described process to the continuous construction to the top.

As described above, the construction method of the basement wall using the deck plate according to the preferred embodiment of the present invention and the deck plate for the construction of the basement wall is shown according to the above description and drawings, but this is merely described as an example and the present Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the invention.

According to the construction method of the underground wall using the deck plate and the deck plate for the construction of the underground wall according to the present invention, to improve the various disadvantages of the existing temporary construction method, such as the strut support method or the ground anchor method do. In other words, according to the present invention, the existing earthquake construction process and the underground outer wall reinforcement and formwork for the present structure is shortened to one operation, and at the same time, the existing earth plate and formwork construction by using the thumb pile as a permanent support pile instead of a temporary structure. By reducing materials and air for the building, and using the thumb pile as a permanent support pile, the construction cost and construction period for the foundation pile are shortened, and it is not necessary to secure the working space between the earthen board and the formwork installation location of the structure required in the existing construction method. In this way, a larger underground space can be constructed.

Claims (6)

In the construction method of the underground wall using a deck plate for enabling the use of the temporary wall as part of the permanent facility, The thumb pile is placed at the boundary between the trench area and the adjacent area to be excavated, and the excavation area of the trench area is directed to the direction of the adjacent area, the rebar network coupled to the support plate toward the trench area, and the rebar network. Inserting a deck plate formed between the thumb piles with a guide mechanism coupled in a vertical direction so as to be supported by the thumb piles at both sides thereof; Coupling the formwork to the inside of the deck plate in the trench area; Placing concrete between the support plate and the formwork to cure, and the concrete wall construction method comprising the step of constructing the concrete wall by dismantling the formwork. The method of claim 1, Sandwiching the deck plate between the thumb piles, removing the soil leaked into the gaps between the thumb piles and the deck plates, and filling the gaps; And installing a reinforcement unit on the thumb pile for integration with the concrete wall to be formed thereafter. The method according to claim 1 or 2, After the deck plate is sandwiched between the thumb pile, the spacer is coupled to the inner side of the thumb pile, and after the construction of the concrete wall, the base wall construction using the deck plate, characterized in that to install a belt on the inner surface Way. In the deck plate for the construction of the basement wall to allow the use of the temporary wall as part of the permanent facility, A reinforcing bar made of a reinforcing bar arranged so that the horizontal reinforcing bars and the vertical reinforcing bars are interwoven with each other, and vertically connecting the overlapping points of the horizontal reinforcing bars and the vertical reinforcing bars to fix the horizontal and vertical reinforcing bars; A support plate coupled to one side of the reinforcing bar network to support the ground in an adjacent area of the trench area in which the building is constructed; And a guide tool coupled to the both sides of the reinforcing bar in a vertical direction so as to be caught by the thumb pile installed at the boundary between the trench region and the adjacent region, so that the guide tool is caught inside the thumb pile. Deck plate for the construction of the underground wall, characterized in that the support plate is inserted between the thumb pile is installed in succession while being positioned between the outer flange and the inner flange of the thumb pile. The method of claim 4, wherein The guide sphere is a shape steel having a front surface, a rear surface, and a connection surface, and an opening is formed in the opposite direction to the connection surface, and a channel is formed between the front and rear surfaces so that the inner flange of the thumb pile is positioned on the channel. Deck plate for construction of underground walls, characterized in that it becomes. The method according to claim 3 or 4, Reinforcing bar support of the reinforcing bar is a deck plate for the construction of the basement wall, characterized in that the formwork is coupled to the inner end to form a concrete wall to maintain a certain distance from the reinforcing bar to form a concrete wall.

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