KR20150031585A

KR20150031585A - Retaining wall without removing steel bar and mould, and construction method thereof

Info

Publication number: KR20150031585A
Application number: KR20130110952A
Authority: KR
Inventors: 김선학; 문제환
Original assignee: 김선학; 문정원
Priority date: 2013-09-16
Filing date: 2013-09-16
Publication date: 2015-03-25

Abstract

The present invention relates to a synthetic retaining wall that does not require reinforcing steel reinforcement, formwork, and demolding, and a method of constructing the same. The column is made of H-PILE steel and is poured as concrete into an H-PILE connected to a lower column, A plurality of pillars installed at predetermined intervals and spaced apart from each other; A steel frame made of a steel material and installed between the columns and installed to be coupled with a rear side protrusion or both side projections of the H-PILE column by bolts and hollow inside with concrete poured; And a plurality of vertical reinforcement members provided in a horizontal direction inside the steel frame to increase the strength of the concrete after the concrete is supported while supporting the steel frame, And a vertical stiffener that supports the cast iron and supports the earth pressure while supporting the concrete, and the casting of the concrete in the steel frame is performed while the concrete casting equipment is moving.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite retaining wall that does not require reinforcement,

The present invention relates to a synthetic retaining wall that does not require reinforcement, formwork, and demolding, and a construction method thereof. The present invention eliminates the disassembly of reinforcement and formwork of a foundation bottom and a wall required for general retaining wall construction, The present invention relates to a composite retaining wall that does not require reinforcing steel reinforcement, formwork, and demolding, and a construction method thereof, in which a steel frame for a wall is assembled in the field and cast concrete into a space inside the steel frame.

Generally RC (Reinforced Concerte) retaining wall is installed to prevent the collapse of the slope and the securing of the paper by cutting or embankment on the slope for the construction of the road, the sidewalk, and the large building.

The general construction procedure of RC (Reinforced Concerte) retaining wall is carried out in the order of reinforced concrete assembly, scaffolding, inner formwork, reinforcement, outer formwork, concrete pouring, curing, formwork dismantling, scaffolding and backfilling.

The above RC retaining wall is complicated and simple repetitive work, which lowers the efficiency of construction, slows down the construction speed, and limits the width and height of the cross section according to the site conditions.

As a conventional technique for solving such a problem, Korean Patent Laid-Open Publication No. 2003-0072655 (September 19, 2003) discloses a vertical wall body in which a plurality of bolts are arranged vertically from left and right at a rear portion, A retaining wall support body supporting the vertical wall body and including a horizontal support body which is supported at right angles to the vertical wall body and is bent in a downward direction by projecting reinforcing bars to the left and right sides; Wherein a plurality of retaining wall blocks are individually moved to an installation place and a plurality of holes are formed in a protruding portion of a rear portion of each of the both side ends so as to be inserted and fixed by a nut, So that they can be firmly supported by each other through the support.

In the above-described retaining wall block, a supporting member, which is a member for supporting the retaining wall block, is separately provided. In order to increase the strength of the concrete, reinforcement is provided and thus many equipment and materials are required in the process. There is a problem in that it is complicated.

In addition, since a mold is installed to manufacture a retaining wall and the mold is removed after the retaining wall is manufactured, a large number of work processes must be performed in terms of the process, a long working time is required, .

SUMMARY OF THE INVENTION It is an object of the present invention to provide a synthetic retaining wall and a method of constructing the same that can greatly shorten construction time and construction cost.

The steel frame with vertical stiffener and horizontal stiffener is installed and assembled in the factory by placing concrete on concrete H-PILE which is placed at regular intervals on the ground. Since the reinforced concrete member is formed by combining the steel frame with the reinforcing steel reinforcing steel and the vertical reinforcement acting as the cast steel reinforcing bars by placing the concrete in the assembled steel frame inner space and structurally reinforcing bars are not necessary, This is a synthetic retaining wall construction method that does not require installation of reinforcing bars and formwork and demolding which can shorten construction time and construction cost while allowing easy installation and elimination of the process of installing and removing formwork.

According to an embodiment of the present invention, the column of the retaining wall is made of H-PILE steel, the lower part is poured into concrete and buried in the ground, and spaced apart at a predetermined interval. A steel frame made of a steel material and installed between the columns and installed to be coupled to one of the H-PILE steel projections or both projections by bolts and hollow inside with concrete poured therein; And a plurality of horizontally reinforced reinforcing members disposed inside the steel frame to horizontally reinforce the steel frame and to synthesize the reinforcing steel and the concrete and the material; And a vertical stiffener installed in the steel frame in a number of vertical directions to support the steel frame and to resist the role of the cast iron and the earth pressure,

The concrete pouring in the steel frame is performed while the concrete pouring equipment is moving.

According to an embodiment of the present invention, a plurality of vertical stiffeners are provided inside the steel frame to support the steel frame and resist the earth pressure.

According to the embodiment of the present invention, when the steel frame is provided on one projecting part of the column, the other projecting part is provided with a mold.

According to the embodiment of the present invention, when the steel frame is provided on one projecting portion of the column, the horizontal reinforcement is mounted on the inner surface of the steel frame on one side, and is spaced apart from the inner surface of the frame by a predetermined distance Respectively.

According to the embodiment of the present invention, when the steel frame is provided on both side projections of the column, the horizontal reinforcement is mounted on the inner surface of one steel frame on one side and the inner surface of the other steel frame And the other side is mounted on the inner surface of the other steel frame so as to be spaced apart from the inner surface of one of the steel frame by a predetermined distance, The first bar and the second bar are alternately arranged alternately.

A method of constructing a composite retaining wall that does not require reinforcement placement, form installation, and demolding according to an embodiment of the present invention includes: installing a plurality of H-PILE columns at predetermined intervals on a road side; Forming a steel frame between the columns, the steel frame including a factory-made horizontal and vertical stiffener to form an inner space; And pouring the concrete into the inner space of the steel frame while moving the concrete pouring equipment.

If a synthetic retaining wall that does not require reinforcement, formwork, or demolding is installed and used in accordance with the embodiment of the present invention,

It is a structure to be constructed by composite member combining steel and concrete. It can reduce the structural cross-section required for construction and can construct structurally safe structure. It can reduce the air dramatically by assembling and installing factory steel frame on site And it is possible to place the concrete continuously while moving the concrete casting equipment, thereby providing the convenience of work,

It is possible to reduce the cost by reducing the construction cost and the construction period by shortening the work process by omitting the reinforcing work assembly, reinforcing steel reinforcement, form assembly and disassembly process.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a reinforced concrete reinforcement and a composite retaining wall according to an embodiment of the present invention.
2 is a front view showing a composite retaining wall that does not require reinforcement and formwork installation and demolding according to an embodiment of the present invention;
3 is a plan view showing an example in which a horizontal reinforcement is installed in a composite retaining wall that does not require reinforcement reinforcement and formwork installation and demolding according to an embodiment of the present invention.
4 is a plan view showing another example in which a horizontal reinforcement is installed on a synthetic retaining wall that does not require reinforcement and formwork installation and demolding according to an embodiment of the present invention.
5 is a reference diagram showing an application example according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a composite retaining wall and a composite construction method thereof that do not require reinforcement, formwork, and demolding according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view showing a synthetic retaining wall which does not require reinforcement, formwork and demolding according to an embodiment of the present invention. FIG. 2 is a perspective view showing a synthetic retaining wall which does not require reinforcement, 3 is a plan view showing an example in which a horizontal reinforcing material and a vertical reinforcing material are installed in a synthetic retaining wall which does not require reinforcement, formwork and demolding according to an embodiment of the present invention. FIG. A horizontal reinforcing member and a vertical reinforcing member are provided on both sides of a synthetic retaining wall which does not require reinforcing steel reinforcement, formwork and demolding.

First, in the drawings, it is noted that the same components or parts are denoted by the same reference numerals as possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as to avoid obscuring the subject matter of the present invention.

As shown in FIGS. 1 to 4, it is installed on the side of the road to prevent the slope of the soil from flowing down the inside of the road. It is possible to reduce the section and increase the height by the composite member combining the steel material and concrete, The composite retaining wall which does not require reinforcement placement, formwork installation and demolding according to the embodiment of the present invention is composed of a column 10, a steel frame 20 and a horizontal reinforcement 30, It is also possible to provide a vertical stiffener 40.

When the inside of the steel frame 20 of the synthetic retaining wall made of the above-described components is poured into the concrete, the concrete pouring equipment such as a ready-mixed vehicle is carried out collectively while moving along the steel frame 20 installed on the site .

As shown in FIG. 1, the column 10 is made of H-PILE, and the lower part of the column 10 is poured into concrete and embedded in the ground, and a plurality of the columns 10 are installed at predetermined intervals.

The size of the H-PILE column 10 is determined by determining the thickness of the steel frame 20, that is, the cross-section and thickness of the retaining wall, since the steel frame 20 is coupled to the protrusions 15 on both sides. do.

The steel frame 20 is installed between the columns 10 and is installed so as to be coupled with one side projection 15 or both side projections 15 of the column 10 of the H-PILE with bolts 22, And the inside is made hollow so as to be poured.

3, when the steel frame 20 is installed only on one side projection 15 of the column 10, the front side projection 15 (see FIG. 3) It is also possible that the formwork 25 is provided.

Here, the installation of the front part formwork 25 can be performed according to the structure calculation and the site conditions because the earth pressure is not applied, and the retaining wall construction can be configured in various ways. For example, It should be understood that the invention is part of the main scope of the invention.

1, 3, and 4, the horizontal stiffener 30 is installed horizontally in the steel frame 20 so that the steel frame 20 and the concrete are made of synthetic members, As a reinforcing bar.

3, in the case where the steel frame 20 of the steel material is provided only on the rear side projection 15 of the column 10, the horizontal reinforcement 30 is formed on the rear side steel frame 20, and the front side thereof is spaced apart from the inner surface of the formwork 25 by a predetermined distance.

4, when the steel frame 20 is installed on the protrusions 15 on both sides of the column 10, the horizontal reinforcement 30 has a single steel frame 20 And a front side of which is spaced apart from the inner surface of the other steel frame 20 by a predetermined distance, and a second bar 31 which is arranged on the inner side of the one steel frame 20 And a second bar (32) mounted on the inner surface of the other steel frame (20).

Here, the first bar 31 and the second bar 32 may be alternately arranged alternately in order to increase the strength and the composite force of the retaining wall after the concrete is poured into the steel frame 20 .

As shown in FIG. 1, the vertical stiffeners 40 are installed vertically in the steel frame 20 to support the steel frame 20 while structurally supporting the earth pressure. Composite members are formed after casting to increase the strength of the material.

FIG. 5 is a reference view showing an application example according to the present invention in order to refer to how a synthetic retaining wall is applied on a slope side of an actual road.

Hereinafter, a method of constructing a synthetic retaining wall without requiring reinforcement, formwork, and demolding according to an embodiment of the present invention will be briefly described.

First, as shown in FIGS. 1 and 2, a plurality of pillars 10 are installed at predetermined intervals in a cut-off portion or a fillet portion of a hill or a mountain of a road for securing a sheet (S11).

When the installation of the columns 10 is completed, a steel frame 20 of steel is installed between the columns 10 to form an internal space (S12).

(The horizontal stiffener 30 and the vertical stiffener 40 are integrally manufactured and transported within the steel frame 20.)

After assembling the steel frame 20 and the column 10 for the synthetic retaining wall as described above, the concrete is poured into the steel frame 20 while moving the concrete casting equipment (S13).

Although the present invention has been described in connection with the exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.

10: Column 15: Projection
20: steel frame 22: bolt
25: Form
30: Horizontal stiffener 31: 1st bar
32: The second bar
40: vertical stiffener

Claims

In a composite retaining wall that does not require reinforcement, formwork and demolding,
A plurality of pillars 10 installed in the ground to be spaced apart from each other by a predetermined distance; H-PILE is installed between the columns 10 and is installed to be coupled with the rear side projection 15 or the front side projection 15 of the column 10 of the H-PILE with the bolts 22, A steel frame (20) in which the interior is hollow to be laid; And a horizontal stiffener 30 installed inside the steel frame 20 in a plurality of horizontal directions to support the steel frame 20 and to connect the steel and concrete with synthetic members,
The concrete casting in the steel frame (20) is carried out while the concrete casting equipment is moving. A composite retaining wall which does not require reinforcement, formwork and demolding.

The vertical stiffener (40) is installed in the steel frame (20) in a plurality of vertical directions to increase the strength of the structure by supporting the steel frame (20) And a reinforced concrete reinforcement which does not require formwork installation and demolding.

The method according to claim 1, wherein when the steel frame (20) is provided on the rear side projection (15) contacting the soil of the column (10), the other front side projection (15) A reinforcing steel reinforcement, a formwork, and a composite retaining wall that do not require demolding.

The horizontal reinforcement member 30 is provided on the rear side of the steel frame 20 when the steel frame 20 is provided on the rear side protruding portion 15 contacting the soil of the column 10, And the front side is spaced apart from the inner surface of the formwork 25 by a predetermined distance. A composite retaining wall which does not require reinforcement, formwork and demolding.

The horizontal stiffener (30) according to claim 1, wherein when the steel frame (20) is provided on both side projections (15) of the column (10)
A first bar 31 mounted on the inner surface of one of the steel molds 20 on the back side and spaced apart from the inner surface of the other steel mold 20 by a predetermined distance,
And a second bar (32) mounted on the inner surface of the other steel frame (20) so as to be spaced apart from the inner surface of the one steel frame (20) by a predetermined distance,
Wherein the first bar (31) and the second bar (32) are alternately arranged alternately. The composite retaining wall does not require reinforcement, formwork, and demolding.

A method of constructing a composite retaining wall that does not require reinforcement, formwork, and demolding, comprises the steps of: (S11) installing a plurality of pillars (10) at predetermined intervals on the road side;
A step (S12) of providing a factory-made steel frame (20) between the columns (10) to form an internal space;
(S13) of pouring concrete into the inner space of the steel frame (20) while moving the concrete pouring equipment.