KR20090078684A - Composite wall using angled channel and constructing method thereof - Google Patents

Abstract

A bearing pile equipped with a soldier pile composed of an H-beam, a composite wall using the same and the construction method thereof are provided to reduce the thickness of an underground wall and to cut down the cost of construction for an underground concrete wall by utilizing easily as a structure member for reinforcing the stiffness of a structure constructed close to a retaining wall without hoarding a soldier pile by composing a soldier pile and a structure wall integrally. A composite wall is formed by installing a soldier pile(10) composed of an H-beam provided with a front flange(11a), a rear flange(11b) and a web(11c) into a hole(100) perforated into the ground, attaching fillers(101) filled in the hole to the outside of the rear flange and the outside of the web of the soldier pile and unifying with fillers, exposing the front of the front flange and the web of the soldier pile to the outside by excavating the front ground and forming a bearing wall(2) on the front of the cut surface of the rear ground to the thickness below the projecting thickness of the front flange of the soldier pile, and placing concrete on the front of the bearing wall to form a structure wall(3) to support the rear soil by forming one structure with the soldier pile and the bearing wall.

Description

Support pile with thumb pile made of H beam, composite wall using same and construction method thereof {Composite Wall Using Angled Channel and Constructing Method}

The present invention relates to a support pile having a thumb pile made of an H beam, a composite wall using the same, and a construction method thereof. Specifically, the construction of the earthquake wall provided to prevent the collapse of the back ground in the underground excavation or slope cutting step In this case, by using a support pile for the retaining wall, the wall or retaining wall of the underground structure to be installed in the basement excavation or slope cutting unit and the retaining wall are integrated, so that the excavation or excavation is not completed The present invention relates to a support pile, a composite wall, and a construction method thereof, which are used as a part of a wall of the present structure to be constructed later.

As land use is advanced, the development of underground spaces and cutting of slopes are increasing day by day, and the size and height are also increasing. In order to prevent the back ground of the excavation from collapsing during the underground excavation or slope cutting, a columnar wall is used.

In the main thermal wall, the ground is drilled, the thumb pile made of steel beams is installed in the drilled hole, and then the supporting pile is continuously installed by injecting filler such as cement or concrete. However, in this case, since the thumb pile is completely embedded in the filler, it is extremely difficult to draw and recycle the thumb pile after the excavation or slope cutting work is completed. On the other hand, because the thumb pile is mainly made of steel and expensive, it is economically disadvantageous to simply buried the thumb pile in the filling material. In particular, there are many cases where underground walls of underground structures, such as walls of basement floors or retaining walls, are directly adjacent to earthen walls, and in this case, the rigidity of concrete basement walls is avoided without placing the thumb pile made of expensive steel. It is desirable to utilize as a structural member to increase.

In order to utilize the thumb pile as a structural member, it is necessary to install a connecting member on the thumb pile so that the connecting member is integrally combined with the concrete of the underground wall. By the way, it is very difficult to install the connection member to the thumb pile in the state of completion or ongoing construction of the trench. First, in order to install the connecting member to expose the thumb pile, a portion of the thumb pile embedded in the filler, it takes a lot of time and effort to expose the clean enough to install the connecting member. In addition, installing a large number of connecting members also requires a lot of time and effort. In order to install such a connection member, it is necessary to approach the side of the thumb pile by using a separate scaffold or a separate equipment. This operation not only has a high risk of safety accident, but also has low precision and low quality control. There is a problem that is very difficult. For this reason, until now, thumb piles have not been used as structural members to increase the rigidity of underground walls.

On the other hand, it may be installed in the hole of the ground in the state that the connecting member is pre-attached to the thumb pile, in this case, the hole of the ground is increased due to the pre-attachment of the connecting member, the cost of drilling increases accordingly, At sites with no margins, there are problems such as reduced total floor area of underground facilities.

In recent years, the height of one floor of the basement of a building is often high. As the height of such a floor increases, the spacing between slabs of each floor serving as a supporting point of the underground wall becomes wider, and as a result, the earth pressure to be burdened by the underground wall increases. As a result, the thickness of the underground wall is further increased. This increase in the thickness of the basement wall not only increases the construction cost but also reduces the total floor area of the basement floor. In extreme cases, the basement depth may be further increased by increasing the number of basement floors to secure the necessary underground space.

The present invention was developed in order to overcome the problems and limitations of the conventional heating pile wall using the thumb pile as described above, by synthesizing the thumb pile and the structure wall integrally, in contact with the earth wall without the thumb pile It is an object of the present invention to provide a support pile to reduce the thickness of an underground wall and a composite wall using the same, by being able to be easily used as a structural member to reinforce the rigidity of the structure to be constructed.

In particular, in the present invention to provide a composite wall to solve the various disadvantages of installing the connecting member in the thumb pile is integrally combined with the concrete of the underground wall in order to use the thumb pile as a structural member. The purpose.

According to the present invention, the thumb pile made of an expensive material that can be easily put together by the support pile with the thumb pile is firmly integrated with the underground wall without installing a separate connecting member to the thumb pile provided on the support pile concrete basement wall The effect that can be utilized as a structural member to increase the rigidity is exhibited.

In addition, since the support pile is utilized as a structural member in the present invention as described above, the thickness of the concrete basement wall can be reduced, and in the present invention, since the installation of the anchor is very easy, the anchor can be appropriately installed in the required location, and thus the basement wall The number of support points can be increased so that the thickness of the underground wall can be reduced by that much.

As such, when the thickness of the underground wall is reduced, the construction cost of the concrete underground wall is not only reduced, but the area occupied by the concrete underground wall is reduced, thereby achieving a wider underground area.

In the present invention, in order to achieve the above object and effect, it comprises a thumb pile inserted into a hole drilled in the ground; The thumb pile comprises an H beam having a front flange, a rear flange and a web; Filler is filled in the hole, the filler is attached to the outside of the rear flange of the thumb pile and the rear side portion of the web, the outer side of the rear flange of the thumb pile and the rear side of the web is embedded in the filler material Although integrated with the support pile is provided on the outside of the front flange of the thumb pile and the outside of the front side portion of the web has a structure that is not attached to the filler.

In the support pile of the present invention as described above, the front cover of the front pile of the thumb pile and the front side of the web is covered so that the filler is not attached to the outside of the front flange of the thumb pile and the outside of the front side portion of the web. It may be protected.

On the other hand, in the present invention, the thumb pile consisting of a H-beam having a front flange, a rear flange and a web is inserted into a hole drilled in the ground, the filler in the hole is the outer and web of the rear flange of the thumb pile Attached to the outside of the rear side portion only and integrated with the filler material; After the front ground is excavated, the front flange of the thumb pile and the front side portion of the web are exposed to the outside, and a supporting wall is formed on the front of the cut surface of the rear ground to a thickness less than or equal to the protruding thickness of the front flange of the thumb pile. Is done; A composite wall is provided which has a structure in which concrete is poured in front of the support wall to form a structure integral with the thumb pile and the support wall to support the back soil. .

In addition, the present invention comprises the steps of installing the thumb pile consisting of the H-beam having a front flange, a rear flange and a web inserted into a hole drilled in the ground; Filling the hole with a filler, the filler is attached to the outside of the rear flange of the thumb pile and the rear side of the web so that the rear flange of the thumb pile and the rear side of the web is integrated with the filler, but the front of the thumb pile Filling a filler in the hole such that filler is not attached to the outside of the front flange of the thumb pile and the outside of the front side portion of the web at the side; Excavating the front side of the hole while drilling the front side of the ground for underground excavation or slope cutting to expose the front flange of the thumb pile and the front side portion of the web to the outside; Forming a support wall for supporting the back ground on the front surface of the cut surface of the back ground to a thickness less than the protruding thickness of the front flange of the thumb pile; And forming a structure wall to be integrated with the thumb pile and the support wall by pouring concrete in front of the support wall and the front of the thumb pile, thereby forming one unit of the thumb pile, the support wall and the structure wall. There is provided a method for constructing a composite wall, wherein the structure is formed so as to support the back soil.

In the construction method of the present invention as described above, prior to filling the filler in the hole, the outside of the front flange of the thumb pile and the front side of the front flange of the web so that the filler does not adhere to the outside of the front side portion of the web. Covering the front cover outside of the side portion; The front cover of the flange and the web may be exposed to the outside by removing the front cover while the front side of the hole is also excavated.

Hereinafter, with reference to the accompanying drawings, the configuration of the present invention and its construction method will be described in detail.

Figure 1 is a plan view showing a state in which the hole 100 is formed in the ground for the construction of the support pile 1 in the present invention, Figure 2 is inserted into the hole 100 to support the thumb pile 10 A plan view showing a state in which the pile 1 is formed is shown, and FIG. 3 is a plan view showing a state in which the front side of the thumb pile 10 is exposed by excavating the front side of the hole 100.

As shown in FIG. 1, a hole 100 is first drilled into the ground, and the thumb pile 10 is inserted into the hole 100 as shown in FIG. 2. In the present invention, the thumb pile 10 is composed of an H-shaped or I-shaped beam (abbreviated herein as "H beam" as a whole) consisting of a front flange 11a, a rear flange 11b, and a web 11c. have. In the state where the thumb pile 10 is disposed in the hole 100, the filler 101, such as soil cement or concrete, is injected into the hole 100.

As shown in FIG. 3, in the present invention, when the soil in the front direction of the hole 100 is excavated or sloped, the front side portion of the front flange 11a and the web 11c of the thumb pile 10 are also shown. It is desirable to be exposed to the outside together. To this end, in the present invention, in the state in which the filler 101 is injected into the hole 100, the back and earth direction of the thumb pile 10, that is, the outside of the back flange (11c) of the thumb pile 10 and the web ( The filler 101 is attached to the outside of the rear side portion of 11c) so that the rear flange 11c of the thumb pile 10 is integrated with the filler 101, but outside the front flange 11a of the thumb pile 10. The filler 101 is not attached to a portion of the front side of the web 11c.

4 is a schematic front perspective view and a rear perspective view respectively showing a state where the thumb pile 10 is disposed in the hole 100. As shown in the drawing, the front flange 11a of the thumb pile 10 is shown. ) The front flange 11a of the thumb pile 10 and the front side portion of the web 11c are covered with the front cover 15 so that the filler 101 is not stuck to the outside and the outside of the front side portion of the web 11c. Protect.

In Fig. 4, reference numerals 16 and 17 denote angle members 16 provided on the side of the web 11c, and fastening members for coupling the front cover 15 and the angle member 16 to install the front cover 15, respectively. (17). Reference numeral 18 is a fastening member 18 for coupling the front cover 15 to each other when using the two-part front cover 15. In the present invention, the front cover 15 is not limited to the embodiment shown in the drawings and may be modified in various forms as long as it is configured to surround the front flange and the web portion.

In this way, when the filler 101 is injected into the hole 100 while the front flange 11a of the thumb pile 10 and the front side portions of the web 11c are covered and protected by using the front cover 15, The filler 101 is attached to the outside of the rear flange 11b of the thumb pile 10 so that the rear flange 11b of the thumb pile 10 and the rear side portion of the web 11c are integral with the filler 101. The outside of the front flange 11a of the thumb pile 10 and the front side portion of the web 11c forms the support pile 1 according to the present invention in which the filler 101 is not attached.

Subsequently, in the underground excavation or slope cutting step, the front side of the hole 100 is excavated and the front cover 15 is removed. At this time, the filler 101 that was outside the front cover 15 of the thumb pile 10 is also removed. Thus, as shown in the plan view of FIG. 5, the rear flange 11b of the thumb pile 10 and the rear side portion of the web 11c are embedded in the filler 101, but the front flange 11a of the thumb pile 10. Since the filler 101 was not attached to the outside of the outside and a portion of the front side of the web 11c, the rear flange 11b is embedded in the filler 101 and is integrated with the filler 101. The front flange 11a and the front portion of the web 11c are easily exposed to the outside as they are.

Subsequent excavation or slope cutting is performed after the support pile 1 is constructed to externally remove the front flange 11a and the front portion of the web 11c of the thumb pile 10 as shown in FIG. 5. Subsequent to the exposed state, a planar cross-sectional view of the support wall 2 formed in front of the cut surface of the ground is shown in FIG. 6, and FIG. 7 is a schematic perspective view of the state shown in FIG. 6. have.

After excavating the front ground in a state in which the support pile 1 of the present invention is constructed as shown in FIG. 5, the front side of the thumb pile 10 is exposed to the outside as shown in FIGS. 6 and 7. As described above, the support wall 2 for supporting the back ground between the support piles 1 is formed in front of the cut surface of the ground. The support wall 2 may be made of cast-in-place concrete, precast concrete, or other earth plate, and the thickness of the support wall 2 may be formed by a thickness of a portion of the thumb pile 10 exposed to the outside. have. In the embodiment shown in the figure, the support wall 2 is made of concrete and is formed to a thickness up to the front flange 11a. Of course, the support wall 2 may be formed to a thickness smaller than the thickness up to the front flange 11a so that the front flange 11a is embedded in the concrete of the structure wall 3 as described below. In FIG. 6 and FIG. 7, reference numeral 22 denotes a reinforcing bar 22 disposed to reinforce concrete in the example in which the support wall 2 is made of concrete.

The installation of the support wall 2 in this way proceeds continuously while excavating the ground in front of the support pile 1.

FIG. 8 is a plan sectional view showing a state in which the structure wall 3 is constructed. After the support wall 2 is constructed, as shown in FIG. 8, concrete is moved forward of the support wall 2. By pouring, the structure wall 3 is integrally constructed. Accordingly, a composite wall in which the thumb pile 10 of the support pile 1, the support wall 2, and the structure wall 3 are integrated is constructed.

At this time, when the support wall 2 is formed to a thickness less than the thickness up to the front flange (11a) as illustrated above, the front flange (11a) is embedded in the concrete constituting the structure wall (3) thumb The pile 10 and the structure wall 3 form a more firmly integrated structure.

For more robust synthesis of the structure wall 3 and the thumb pile 10, the outer surface of the front flange 11a of the thumb pile 10 before placing concrete for the construction of the structure wall 3. It is also preferable to attach the composite connecting material 31 in advance so that the synthetic connecting material 31 is embedded in the concrete of the structure wall 3 (see FIGS. 6 to 8).

The structure wall 3 may be a wall of an underground structure installed in the excavated ground, or may be a wall of a retaining wall installed in the excavated ground. FIG. 9 is a side view of a state in which a structural wall 3 is constructed as a vertical wall of the retaining wall, and FIG. 10 is a side view of a state in which a structural wall 3 is constructed as a wall of an underground structure.

In the present invention, since the thumb pile 10 and the support wall 2, which were considered only as a temporary structure, are integrated with the structure wall 3 and utilized as a structure supporting the back earth pressure, the thickness of the structure wall can be reduced by that amount. Therefore, as in the conventional case, it is possible to solve the disadvantages such as the increase in the thickness of the basement wall, thereby increasing the construction cost and decrease the total floor area of the basement floor.

1 is a plan view showing a state in which a hole is formed in the ground to construct a support pile in the present invention.

FIG. 2 is a plan view illustrating a state where a thumb pile is inserted into the hole of FIG. 1. FIG.

3 is a plan view showing a state in which the front side of the thumb pile is exposed by excavating the front side of the hole in the state of FIG.

4A and 4B are schematic front and rear perspective views showing a state where a thumb pile is disposed in a hole, respectively.

5 is a plan view showing a state in which the front cover of the hole was excavated and the front cover provided in the thumb pile was removed in an underground excavation or a slope cutting step.

Figure 6 is a cross-sectional view showing a state in which the support wall is formed in front of the cut surface of the ground after performing the underground excavation or slope cutting operation.

7 is a schematic perspective view of the state shown in FIG. 6.

8 is a plan sectional view showing a state in which a structure wall is constructed.

9 is a side view showing a state in which a structure wall is constructed as a vertical wall of the retaining wall.

10 is a side view showing a state in which a structure wall is constructed as a wall of an underground structure.

<Explanation of symbols for the main parts of the drawings>

1: support pile

2: support wall

3: structure wall

10: Thumb pile

Claims (5)

 A thumb pile 10 inserted into a hole 100 drilled into the ground; The thumb pile (10) comprises an H beam having a front flange (11a), a rear flange (11b) and a web (11c); Filler 101 is filled in the hole 100, the filler 101 is attached to the outside of the rear flange (11b) of the thumb pile 10 and the outside of the rear side portion of the web (11c), the thumb The outside of the rear flange 11b of the pile 10 and the rear side portion of the web 11c are embedded in the filler 101 and integrated with the filler 101, but the front flange 11a of the thumb pile 10 is integrated. Support pile, characterized in that the outer and the outer portion of the front side portion of the web (11c) has a structure in which the filler 101 is not attached. The method of claim 1, The front flange 11a and the web 11c of the thumb pile 10 so that the filler 101 is not attached to the outside of the front flange 11a of the thumb pile 10 and the outside of the front side portion of the web 11c. The front side portion of the support pile, characterized in that the front cover (15) is covered and protected. A thumb pile (10) consisting of an H beam having a front flange (11a), a rear flange (11b), and a web (11c) is inserted into a hole (100) drilled in the ground, and is provided within the hole (100). Filler 101 is attached only to the outside of the rear flange (11b) of the thumb pile 10 and the outside of the rear side portion of the web (11c) is integrated with the filler (101); Extrusion thickness of the front flange 11a of the thumb pile 10 after exposing the front ground portion 11a of the thumb pile 10 and the front side portion of the web 11c to the outside by excavation of the front ground. The support wall 2 is formed in the front surface of the cut surface of the back ground to the following thickness; Concrete is poured in front of the support wall 2 to form a structure integral with the thumb pile 10 and the support wall 2 so as to support the back soil. The structure wall 3 is formed. Composite wall having a structure. Inserting and installing a thumb pile (10) comprising an H beam having a front flange (11a), a rear flange (11b), and a web (11c) to a hole (100) drilled in the ground; The filler 101 is filled in the hole 100, and the filler 101 is attached to the outside of the rear flange 11b of the thumb pile 10 and the rear side portion of the web 11c and the thumb pile 10. The rear flange 11b and the rear side portion of the web 11c of the) are integrated with the filler 101, but on the front side of the thumb pile 10, the outer and web of the front flange 11a of the thumb pile 10 are Filling the filler (101) in the hole (100) so that the filler (101) is not attached to the outside of the front side portion of (11c); Excavating the front side of the hole 100 while drilling the front surface of the ground for underground excavation or slope cutting to expose the front flange 11a of the thumb pile 10 and the front side portions of the web 11c to the outside; Forming a support wall (2) for supporting the back ground on the front of the cut surface of the back ground to a thickness less than the protruding thickness of the front flange (11a) of the thumb pile (10); And By placing concrete in front of the support wall 2 and in front of the thumb pile 10 to form the structure wall 3 so as to be integrated with the thumb pile 10 and the support wall 2,  The thumb pile (10), the support wall (2) and the structure wall (3) to form a structure that is integrally formed so as to support the structure of the back wall, composite wall construction method. The method of claim 4, wherein Prior to filling the filler material 101 with the hole 100, the thumb stake is provided so that the filler material 101 does not stick to the outside of the front flange 11a of the thumb pile 10 and the outside of the front side portion of the web 11c. Covering the front cover 15 on the outside of the front flange 11a of 10 and on the outside of the front side portion of the web 11c; And removing the front cover (15) in a state where the front side of the hole (100) is also excavated to expose the front side portions of the flange (11a) and the web (11c) to the outside.

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