KR101773770B1 - Wall structure using buttress base plate and the construction method therefor - Google Patents

Abstract

The present invention relates to a retaining wall using a back pile and a construction method thereof, wherein a shelf portion is constructed in the back of a wall integrated with a pile; and moreover, a retaining wall is able to be a large-scale by maximizing a strength of the wall with a back pile. The retaining wall comprises: a front retaining wall portion having a front wall portion formed to be vertical in an upper portion of a front pile; and a back retaining wall portion having a shelf type wall portion in which the front wall portion and a back shelf portion are integrally formed to be an L-shaped wall, and a back pile formed on a bottom surface in the back of the back shelf portion.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall using a backing file,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall using a backing pile and a method of construction thereof. More particularly, the present invention relates to a retaining wall using a back pile, which is capable of enlarging the retaining wall by maximizing the rigidity of the wall by using a back side pile and by using a back side pile on the back side of a wall integrally formed with a pile, and a method of construction thereof.

The conventional Retaining Wall is constructed by assembling the foundation plate and the wall through the assembling of reinforcing steel, installing the formwork, installing the concrete, and curing the concrete, thereby making it possible to improve the rebar assembly time, the form installation period, The installation period has been relatively long,

In order to install the retaining wall, both the base plate and the wall are produced by pouring the concrete in the field, so the quality of the concrete is not constant according to the conditions of the site, so the quality control is not easy.

In order to resist the earth pressure due to back soil and overburden, reinforcement was reinforced by reinforcing walls or by building walls by the wall. However,

As the height of the retaining wall increases, the amount of reinforcing concrete used in the wall increases, and the size of the subwall becomes larger than that of the wall. As a result, excessive use of concrete and reinforcing steel The use of the formwork caused the increase of the construction cost and the difficulty of construction.

As shown in FIG. 1A, there is also disclosed an example in which a pre-cast retaining wall 10 having a bottom wall 13 formed on the back surface of the wall 12 is installed, and only the rear portion of the base plate 11 is constructed with the cast concrete 14 Able to know.

Further, as shown in FIG. 1B, a shelf-type retaining wall using a conventional file is also disclosed.

A base wall (10) formed of a reinforcing bar inserted into a head of the pile (30) and formed with a file insertion block having a pile hollow therein and formed on the lower backside and extending from the upper side to the upper side; And a free standing shelf wall (20) formed with a vertical wall part embedded in the bottom part to expose a splice sleeve and a bottom shelf extending from a lower end of the vertical wall part to a back part, Is inserted from the bottom surface of the splice sleeve into which the inner reinforcing bars of the self-supporting type shelf wall 20 have been inserted in advance and is connected to each other by the filler (C).

Therefore, if the wall section is designed based on the earth pressure that is most likely to occur on the wall because the wall is divided and the earth pressure corresponding to each divided height acts on the lower shelf, It is possible to have a practical effect of reducing the earth pressure.

However, even in the case of the lathe-type retaining wall using such a file, the earth pressure acting on the foundation wall 10 and the self-supporting shelf wall 20 also increases proportionally when the retaining wall is enlarged, There is a problem in that it is very difficult to have the limit of use.

Korean Patent Laid-Open No. 10-2016-0107796 (title of the invention: precast concrete retaining wall, publication date: Sep. 19, 2016)

Accordingly, the present invention can easily control the retaining wall displacement even when the retaining wall is enlarged in the construction of the lathe wall retaining wall by using the wall portion and the pile using the base wall and the shelf sub-wall, so that the backing pile And to provide a retaining wall and a construction method thereof.

In order to achieve the above object,

A front retaining wall including a front wall portion integrally formed in the form of a vertical wall at an upper portion of the front side file; And a rear retaining wall including a front wall portion and a rear wall portion formed integrally with each other in the form of an L-shaped wall and a rear wall formed on the rear bottom wall of the rear wall portion, The front wall part of the retaining wall is integrally connected and the back side pile is integrated with the back side file so that the back side retention wall supports the earth pressure acting on the front retaining wall part together, An additional rear wall retaining wall is formed at an upper portion of the rear retaining wall, wherein the additional rear retaining wall is integrally formed on an upper surface of the front wall of the rear retaining wall; Wherein the additional back surface shelf extends further rearward than the back surface shelf of the back retaining wall such that the additional back surface file is formed in the form of an L- As shown in Fig.

In order to achieve the above object, a retaining wall construction method using a back pile

(a) inserting a H-shaped file into a perforation hole while forming a perforation hole to construct a back pile of a back retaining wall on a ground; (b) excavating the front ground G1 of the back pile; (c) separately forming a perforation hole in the excavated front ground G1 and inserting an H-shaped file into the perforation hole to construct a front file of the front retaining wall; (d) further excavating the front ground G2 of the front file to expose the top of the front file; (e) integrating the front wall portion on top of the exposed front pile; (f) installing a shelf-type wall portion of a rear retaining wall formed of a front wall portion and a rear wall portion as an L-shape on an upper surface of the front wall portion; (g) a step of installing the back pile to be supported by the back pile on the rear bottom surface of the rear shelf, wherein the back pile is positioned behind the front pile of the front retaining wall, and the back pile is integrated with the back pile, The additional back retaining wall is integrally formed on the upper surface of the front retaining wall of the rear retaining wall, and the additional back retaining wall is formed in the upper portion of the back retaining wall in the step (a) An additional overhead wall portion; Wherein the additional back surface shelf extends further rearward than the back surface shelf of the back retaining wall such that the additional back surface file is in the form of an L- As shown in Fig.

According to the present invention, the retaining wall using the back side pile can be manufactured by making the wall slim, and it is possible to reflect the effect of reducing the earth pressure acting by using the side wall of the shelf, and maximize the rigidity of the wall by using the multi- It is possible to provide a retaining wall and a method of constructing the retaining wall using a back side file which is easy to control the retaining wall displacement even if the retaining wall is enlarged.

FIG. 1A is a sectional view of a precast retaining wall in which a conventional wall is formed on a rear surface of a wall,
1B is a perspective view of a shelf-type subsidiary retaining wall using a conventional file,
FIGS. 2A and 2B are a perspective view of a retaining wall using a back pile of the present invention,
FIGS. 3A, 3B and 3C are views showing a construction process of a retaining wall using a back pile according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[Retaining wall using the back surface file of the present invention]

2A and 2B are perspective views of a retaining wall 100 using a back pile according to the present invention.

2A and 2B will be described with reference to FIG. 2A as to whether or not to form the rear retaining wall 120 in a multi-stage manner.

The retaining wall 100 using the back side pile according to FIG. 2A includes a front retaining wall 110 and a rear retaining wall 120. FIG.

The front retaining wall 110 includes a front wall 111 and a front wall 112.

At this time, the front wall part 111 is a precast vertical wall, which is a rectangular parallelepiped concrete wall having a cross-sectional area suitable for manufacture, transportation and construction.

The front wall part 110 is installed so as to be in contact with each other in the longitudinal direction of the retaining wall, and is installed using the front surface file 112 so that it can stand on the ground.

The front face file 112 may be formed of a steel material file such as an H-shaped steel material file. The front face file 112 may be formed on the ground so that the tofu is drawn upward and then integrated with the bottom face of the front wall part 111 .

For example, although not shown, a file insertion groove formed by a socket or the like may be formed on the bottom surface or the bottom surface of the front wall part 111 so that the head of the front file 112 is inserted into the file insertion groove. And then integrated with the grouting material.

Accordingly, when earth pressure acts on the back surface of the front retaining wall 110, the front retaining wall 110 is a cantilever structure formed by the front pile 112, and when the earth pressure is increased, the height of the retaining wall due to the enlargement is limited I can not help it.

Accordingly, the present invention is further constructed by integrating the rear retaining wall 120 with the front retaining wall 110. [

The rear retaining wall 120 includes a shelf type wall portion 121 and a back side pile 122.

It is understood that the shelf type wall part 121 is formed as an L-shaped wall part including the front wall part 121a and the back side shelf part 121b.

The front wall part 121a is formed as a rectangular parallelepiped concrete vertical wall and the front wall part 121a is installed so as to be in contact with each other in the longitudinal direction of the retaining wall. On the upper surface of the front wall part 111 of the front retaining wall part 110, Are integrated with each other.

Next, the back surface shelf 121b functions as a shelf in the shelf type retaining wall in the form of a horizontal plate extending rearward from the lower back surface of the front wall part 121a.

Next, the rear surface file 122 is installed to extend downward on the rear bottom surface of the rear surface shelf 121b, and is positioned behind the front surface file 112.

Accordingly, the back surface shelf 121b is integrated with the back surface pile 122, so that the working earth pressure can be more effectively supported behind the front retaining wall portion 110. [

As a result, it can be seen that the present invention utilizes the merits of a retaining wall using a pile and a retaining wall using a pile, in such a manner that the front retaining wall 110 and the rear retaining wall 120 in the form of a rack- have.

Next, the retaining wall 100 using the back pile according to FIG. 2B includes the front retaining wall portion 110 and the back retaining wall portion 120, and the additional back retaining wall portion 130 may be formed in multiple stages .

An additional front wall part 131 is additionally formed on the upper part of the rear retaining wall part 120 in a state where one rear retaining wall part 120 is provided on the front retaining wall part 110, It can be seen that the additional back surface shelf 132 is extended to the lower rear portion of the back surface shelf 131 and the additional back surface pile 133 is integrated with the additional back surface shelf portion 132.

It is noted that the additional back surface shelf 132 extends further rearward than the back surface shelf 121b so that the additional back surface file 133 is further rearward than the back surface file 122.

If the number of the additional rear retaining wall portions 130 is not one but plural, the number of the additional rear wall retaining wall portions 130 can be increased.

[Method of constructing a retaining wall using a back surface file of the present invention]

FIGS. 3A, 3B and 3C illustrate a flow chart of a retaining wall construction method using the back pile of the present invention of the present invention.

The retaining wall using the back side file will be described with reference to a retaining wall using the back side file according to FIG. 2A.

Accordingly, it can be seen that the retaining wall 100 using the back side file includes the front retaining wall portion 110 and the back retaining wall portion 120.

First, as shown in FIG. 3A, the back pile 122 of the back retaining wall 120 is constructed on the ground. A hole is formed in the perforation hole, and the H-shaped pile is inserted into the perforation hole, and a large number of piles are installed in the longitudinal direction of the retaining wall.

The front ground G1 of the back surface file 122 is excavated.

It is preferable to install a temporary structure A such as a soil plate between the back piles 122 so that the back piles 122 are not forwarded to the front due to the earth pressure acting because the front piles of the exposed back piles 122 are excluded Do.

And the front pile 112 of the front retaining wall 110 is installed on the upper surface of the excavated front ground.

This is because the front file 112 is located in front of the back side file 122 and is formed in such a manner that a perforation hole is formed and the H-shaped file is inserted into the perforation hole, Is the same.

Next, as shown in FIG. 3B, when the construction of the front file 112 is completed, the front ground G2 of the front file 112 is further partially excavated to expose the top of the front file 112. At this time, since the earth pressure does not act on the front file 112, it can be understood that the front file 112 is not transmitted.

In this way, the front wall part 111 is integrated with the exposed front side file 112. Accordingly, it can be seen that the front wall part 111 is constructed in the form of a vertical wall.

After the front wall part 111 is constructed, the shelf type wall part 121 of the rear retention wall part 120 is installed.

It can be understood that the shelf-type wall portion 121 is an L-shaped and is formed by the front wall portion 121a and the back surface shelf portion 121b.

The front wall portion 121a of the shelf type wall portion 121 is supported on the upper surface of the front wall portion 111 to be integrated and the rear bottom surface of the back side shelf portion 121b is supported by the back surface pile 122, do.

Next, as shown in FIG. 3C, the front and back piles 112 and 122 are completed by backfilling the back surfaces of the front wall portions 111 and 121a, but the front pile 112 and the back pile 122 may be connected by a bracing material.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Retaining wall with backside file
110: front retaining wall portion
111: front wall portion
112: Front file
120: rear retaining wall portion
121: shelf type wall part
121a: front wall portion
121b: rear shelf
122: Bottom file
130: additional rear retaining wall
131: additional front wall section
132: additional backside shelf
133: Additional Bottom File

Claims (8)

A front retaining wall 110 including a front wall part 111 integrally formed in the form of a vertical wall on the front side of the front pile 112;
A rear wall 121b including a front wall portion 121a and a rear shelf portion 121b integrally formed in a L-shaped wall portion 121 and a rear surface file 122 formed on a rear bottom surface of the rear shelf portion 121b, And a retaining wall portion (120)
A front wall 121a of the rear retaining wall 120 is integrally connected to an upper surface of the front wall portion 111 of the front retaining wall 110 and a rear wall 122 are positioned so that the rear shelf portion 121b is integrated with the back surface pile 122 so that the back retaining wall 120 supports the earth pressure acting on the front retaining wall portion 110 together,
An additional back retaining wall 130 is further formed on the back retaining wall 120 so that the additional back retaining wall 130 is integrally formed on the upper surface of the front wall portion 121a of the back retaining wall 120 An additional front wall portion 131; And an additional rear surface shelf 132 extending rearwardly from the lower side of the additional front wall portion 131. The additional back surface shelf 132 is formed in the shape of an L- And further extends rearward beyond the back surface shelf portion (121b) such that the additional back surface file (133) is disposed behind the back surface file (122). The method according to claim 1,
The retaining wall is formed by using the back-side file (112) and the back side file (122) to be formed by using the H-shaped steel file. delete The method according to claim 1,
The additional backwall retaining wall 130 may be formed in at least one or more phases so as to be formed in multiple stages. (a) forming a perforation hole and inserting an H-shaped file into the perforation hole to construct the back pile 122 of the back retaining wall 120 on the ground;
(b) excavating the front ground G1 of the back pile 122;
(c) separately forming a perforation hole in the excavated front ground G1 and inserting an H-shaped file into the perforation hole to construct the front pile 112 of the front retaining wall 110;
(d) further excavating the front ground G2 of the front file 112 to expose the top of the front file 112;
(e) integrating the front wall part (111) on the exposed front pile (112);
(f) installing a shelf-type wall portion 121 of a back retaining wall 120 formed of an L-shaped front wall portion 121a and a back surface shelf 121b on the upper surface of the front wall portion 111;
(g) supporting the rear surface of the rear surface shelf 121b by the back surface pile 122,
The rear shelf portion 121b is integrated with the back surface pile 122 so that the rear retention wall portion 120 is separated from the front retaining wall portion 110 are supported together,
In the step (a), an additional back retaining wall 130 may be further formed on the back retaining wall 120, and the additional back retaining wall 130 may be formed on the front wall portion 121a of the back retaining wall 120 An additional front wall portion 131 integrally formed on the upper surface; And an additional rear surface shelf 132 extending rearwardly from the lower side of the additional front wall portion 131. The additional back surface shelf 132 is formed in the shape of an L- And the back side pile (121) extends further rearward than the back side shelf (121b) so that the additional back side pile (133) is disposed behind the back side pile (122). delete 6. The method of claim 5,
In the step (b), when the back surface file (122) is not conducted due to earth pressure caused by excavating the front ground (G1) of the back surface pile (122) Way. 6. The method of claim 5,
The method as claimed in claim 10, wherein the step (g) further comprises the step (f) of horizontally connecting the front file (112) and the back file (122) to each other using a bracing material.

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