KR101652163B1 - Concrerte pannel for retaining wall and method for constructing retaining wall using the same - Google Patents

Abstract

The concrete panel for a retaining wall of the present invention comprises: a plate-like panel body portion; A center protruding portion protruding from a central portion of a front surface of the panel body portion and having a hollow formed obliquely perforated in a rearward direction; A transverse portion formed in a shape of a trapezoidal section in the center protruding portion toward the lower corrugate side and having the same protruding thickness and smaller protruding width; A pair of reinforcing portions formed in a mutually symmetrical shape such that the projecting portion has a trapezoidal shape in section from the center projecting portion toward the upper both side corners and the projecting thickness and the projecting width are gradually reduced; The central projecting portion, the counterweight portion, and the pair of reinforcing portions, which are provided in the panel body portion, the center projecting portion, the counterweight portion, and the pair of reinforcement portions, Rebar section; A drain hole formed in the panel body portion so as to be symmetrically positioned on the outside of the pair of reinforcement portions; And an annular portion disposed in a space of a groove portion formed to be symmetrically symmetrical on both sides of an upper surface of the panel body portion, wherein the total weight of the reinforcing portions provided in the pair of reinforcing portions and the reinforcing portions provided in the pair of reinforcing portions Is smaller than the total weight of the reinforcements provided inside the buckle and the buckle so that the center of gravity is located below the center protrusion.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a concrete panel for a retaining wall and a method for constructing the retaining wall using the same.

The present invention relates to a concrete panel for a retaining wall and a method of constructing a retaining wall using the same. More particularly, the present invention relates to a reinforced concrete structure for retaining a concrete panel for a retaining wall, The concrete panel for a retaining wall can be stably installed at the time of constructing the retaining wall so that the construction can be simplified and a part of the inclined surface is excavated to form a wedge-shaped groove portion, and the anchor is fixed to the wedge- A concrete panel for a retaining wall capable of increasing the supporting force of the anchor, and a method for constructing a retaining wall using the same.

Generally, the wall that resists the earth pressure is called 'retaining wall' so that the soil does not collapse. Among these retaining walls are retaining walls using permanent anchors and retaining walls using rock bolts.

1, a retaining wall 1 using a permanent anchor is formed by forming a concrete panel 5 having a predetermined thickness along a slope 7 of a slope 7, and a permanent anchor 3 at a predetermined interval So that the concrete panel 5 is fixed.

As described above, the concrete panel 5 is closely attached along the slope of the slope 7 to cover the slope of the slope 7, thereby preventing the slope 7 from happening.

However, the retaining wall 1 using the permanent anchor has a disadvantage in that vegetation such as tree planting is impossible on the retaining wall 1 by covering the entire slope of the slope with the concrete panel 5.

2, since the angle between the direction of the horizontal earth pressure applied to the concrete wall 5 and the longitudinal direction of the permanent anchor is about 30 degrees, the resistance of the retaining wall is weak, and in order to compensate, There is a problem that the cost of constructing a retaining wall increases because a permanent anchor having a large tensile force must be constructed.

3, the retaining wall 10 using the rock bolt 20 is formed by stacking a rock bolt 20 fixed to a knitted fabric in a stepwise manner, a virtual vertical surface in the form of a step, And the panel 30 fixed by the panel 20 is sandwiched between the panel 30 and the cut ground so that the vegetation is formed on the gully land 15, It is possible.

However, when the rock bolt 20 is pulled out to apply the prestress to the rock bolt 20, the rock bolt 20 is not grooved and is fixed to the sloped ground 13, The outer surface of the retaining wall 10 formed by each of the panels 30 may not be flush with the outer surface of the retaining wall 10 so that sufficient prestress can not be applied There was a problem.

In order to solve the above-described problems, as disclosed in Japanese Patent No. 10-0525156, a pedestal 32 is formed on a concrete panel 30, and a hollow 31 perpendicular to the inclination of the pedestal 32 is formed The hollow section 31 has been described with respect to a concrete panel 30 having an inclination angle of approximately 10 degrees, thereby enhancing the resistance of the retaining wall.

However, since the concrete panel 30 having the above-described structure is vulnerable to fracture due to the drainage holes 33 formed on both the upper portion of the pedestal 32 and the upper portion of the pedestal 32, There is a problem that frequent breakage is generated on the basis of the base 36.

Registration No. 10-0525156 (registered date October 24, 2005)

It is an object of the present invention to solve the above problems in the prior art, and it is an object of the present invention to provide a reinforcement structure for preventing breakage of an upper portion of a concrete panel for a retaining wall by soil pressure, And the anchor is fixed to the wedge-shaped groove portion, so that the supporting force of the anchor can be increased. Therefore, And a method of constructing a retaining wall using the same.

According to an aspect of the present invention, there is provided a concrete panel for a retaining wall comprising: a panel body; A center protruding portion protruding from a central portion of a front surface of the panel body portion and having a hollow formed obliquely perforated in a rearward direction; A counterbore formed in a shape of a trapezoidal section in the center protruding portion toward the lower front edge side of the panel body portion and having the same protruding thickness and smaller protruding width; A pair of reinforcing portions formed in a mutually symmetrical shape such that a protruding thickness and a protruding width gradually decrease from the central protruding portion in the shape of a trapezoidal section in the direction toward the upper both side corners of the front surface side of the panel body portion; The central projecting portion, the counterweight portion, and the pair of reinforcing portions, which are provided in the panel body portion, the center projecting portion, the counterweight portion, and the pair of reinforcement portions, Rebar section; A drain hole formed in the panel body portion so as to be symmetrically positioned on the outside of the pair of reinforcement portions; And an annular portion disposed in a space of a groove portion formed to be symmetrically symmetrical on both sides of an upper surface of the panel body portion, wherein the total weight of the reinforcing portions provided in the pair of reinforcing portions and the reinforcing portions provided in the pair of reinforcing portions Is smaller than the total weight of the reinforcements provided inside the buckle and the buckle so that the center of gravity is located below the center protrusion.

According to an aspect of the present invention, there is provided a method of constructing a retaining wall, comprising: cutting a ground to form a slope; Forming a flat base portion by horizontally arranging a lower portion of the inclined surface; Drilling an anchor installation hole on the inclined surface; Inserting one end of the anchor into the installation hole; Filling the anchor fixing hole with the anchor fixing concrete in a state where the anchor is inserted into the mounting hole and curing the anchor fixing hole; The concrete panel for a retaining wall is vertically positioned so that the bottom surface of the concrete panel for a retaining wall having the above-described structure is positioned on the upper surface of the base portion, and a hollow portion, which is obliquely perforated obliquely downward toward the rear lower portion, Penetrating the other end; Filling the backfilling concrete so that the anchors are embedded in a space between a back surface of the concrete wall panel for retaining walls and the inclined surface; Fixing the other end of the anchor to the retaining wall concrete panel with the anchor stretched; Curing the backfill concrete; And filling the top of the poured backfilled concrete with the gypsum.

According to an aspect of the present invention, there is provided a method of constructing a retaining wall, comprising: cutting a ground to form a slope; Forming a wedge-shaped groove portion that is formed to be larger in diameter than an entrance portion by excavating a part of the inclined surface; Forming a flat base portion by horizontally arranging a lower portion of the inclined surface; Drilling an anchor hole on an inner surface of the wedge-shaped groove; Inserting one end of the anchor into the installation hole; Filling the anchor fixing hole with the anchor fixing concrete in a state where the anchor is inserted into the mounting hole and curing the anchor fixing hole; The concrete panel for a retaining wall is vertically positioned so that the bottom surface of the concrete panel for a retaining wall having the above-described configuration is positioned on the upper surface of the base portion, and a hollow portion, which is obliquely perforated obliquely downward, Penetrating the other end; Filling the backfilling concrete so that the anchors are embedded in the space between the back surface of the concrete wall panel and the inclined surface and the wedge-shaped grooves; Fixing the other end of the anchor to the retaining wall concrete panel with the anchor stretched; Curing the backfill concrete; And filling the top of the poured backfilled concrete with the gypsum.

The present invention as described above has a reinforcing structure for preventing breakage of the upper portion of the concrete panel for retaining walls due to the earth pressure and is positioned below the center of gravity so that the concrete panel for retaining walls can be stably It is advantageous that construction is easy because it can be erected.

Also, since the wedge-shaped groove portion is formed by digging a part of the inclined surface and the anchor is fixed to the wedge-shaped groove portion, the supporting force of the anchor can be increased.

1 is a schematic view showing a retaining wall using a permanent anchor according to a conventional technique.
2 is a schematic view showing the angle between the direction of the horizontal earth pressure acting on the retaining wall using the permanent anchor and the longitudinal direction of the permanent anchor.
3 is a cross-sectional view of a retaining wall using a precast concrete panel according to the prior art.
4 is a perspective view showing an example of a conventional concrete panel.
5 is a perspective view illustrating a concrete panel for a retaining wall according to an embodiment of the present invention.
6 is a front view showing a concrete panel for a retaining wall according to an embodiment of the present invention.
7A to 7C are side cross-sectional views illustrating a concrete panel for a retaining wall according to an embodiment of the present invention.
8 is a view showing a reinforcing portion of a concrete panel for a retaining wall according to an embodiment of the present invention.
9 to 16 are views showing a retaining wall construction process using a concrete panel for a retaining wall according to an embodiment of the present invention.
17 to 26 illustrate another retaining wall construction process using a concrete panel for a retaining wall according to an embodiment of the present invention.

The present invention may be embodied in many other forms without departing from its spirit or essential characteristics. Accordingly, the embodiments of the present invention are to be considered in all respects as merely illustrative and not restrictive.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms.

The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, .

On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", "having", and the like are intended to specify the presence of stated features, integers, steps, operations, components, Steps, operations, elements, components, or combinations of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and a duplicate description thereof will be omitted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

5 to 8, a concrete panel 100 for a retaining wall according to an embodiment of the present invention includes a panel body portion 110, a center protruding portion 120, a rest portion 130, A reinforcement 140, reinforcing bars 151, 153 and 155, a drain 160 and a collar 170. [

The panel body part 110 is a wall part that resists to earth pressure so that the soil does not collapse, and is formed of a concrete material and has a plate-like panel shape having a predetermined thickness.

Meanwhile, the upper surface of the panel body 110 is provided with the annular portion 170 for lifting and moving the concrete panel 100 for the retaining wall of the present embodiment.

The annular portion 170 is disposed in the space of the groove h formed on both sides of the upper surface of the panel body 110 so as to be mutually symmetrical.

The central protrusion 120 protrudes from the center of the front surface of the panel body 110 and protrudes in a substantially rectangular shape. As shown in FIG. 3, As shown in Fig.

7A, a hollow 121 is formed perpendicularly to the protruding surface of the central protrusion 120. Specifically, the hollow 121 is formed by slanting downward toward the rear side .

The hollow 121 may be formed to be enlarged toward the rear, and the central protrusion 120 may be formed with multi-step recesses 120h1 and 120h2 communicating with the hollow 121. [ The multi-stepped grooves 120h1 and 120h2 are formed at different angles.

Therefore, as shown in Fig. 7C, the end of the anchor may be provided so as to extend over the first multi-stepped groove 120h1, or the second multi-stepped groove 120h2 may be formed as shown in Fig. It is possible to select the installation angle of the anchor such that the end of the anchor is provided so as to cover the anchor.

The seating part 130 is formed in a trapezoidal shape in cross section from the central protruding part 120 to the front lower side of the panel body part 110 and has the same protruding thickness and smaller protruding width.

The buckle 130 functions to facilitate the vertically standing up of the panel body 110 and to reinforce the lower side of the panel body 110.

The pair of reinforcing portions 140 are formed in a trapezoidal shape in the central protruding portion 120 toward the upper both side corners of the front surface side of the panel body portion 110 and are symmetric with respect to the protruding thickness and protruding width .

The pair of reinforcement portions 140 reinforce the upper side of the panel body 110.

The reinforcing bars 151, 153 and 155 are provided inside the panel body 110, the central projection 120, the seat 130 and the pair of reinforcement parts 140, And is a portion constituting the skeleton of the panel body 110, the central projection 120, the seat 130, and the pair of reinforcement 140.

The drain 160 is an opening for drainage, and is formed to be positioned symmetrically with the outside of the pair of reinforcement parts 140.

Meanwhile, the panel body 110, the center protrusion 120, the counterweight 130, and the pair of reinforcement parts 140 are integrally formed by pouring concrete, and when the concrete is poured, The pipe member for forming the hollow 121 and the drain 160 and the ring 170 for lifting are cured and cured to form the concrete panel 100 for the retaining wall, .

The concrete panel 100 for a retaining wall according to the present embodiment is characterized in that the combined weight of the reinforcing portions 140 provided in the pair of reinforcing portions 140 and the reinforcing portions 153 provided inside the pair of reinforcing portions 140 is larger than the total weight of the reinforcing portions 153, Is smaller than the total weight of the reinforcing bars (130) and the reinforcing bars (155) provided inside the seating unit (130) so that the center of gravity is located below the central projecting unit (120).

In other words, the projecting thickness of the left and right leg portions 130 and 130 is formed to be the same, and the protruding thickness of the pair of the reinforcing portions 140 is gradually decreased toward the end portion, The densities of the reinforcing bars constituting the reinforcing portions 153 of the pair of reinforcing portions 140 are lower than the density of the reinforcing bars forming the portions 155 of the reinforcing portions 140, The total weight of the reinforcing bars 153 provided in the inside of the seat 140 may be smaller than the combined weight of the reinforcing bars 155 provided in the seat 130 and the seat 130. [ have. Alternatively, the diameter of the reinforcing bars forming the reinforcing bars 153 of the pair of reinforcing bars 140 may be smaller than the diameter of the reinforcing bars of the reinforcing bars 155 of the upright 130.

The center of gravity of the concrete panel 100 for the retaining wall can be located below the central protrusion 120 through the above-described construction, and the concrete panel 100 for retaining walls can be vertically So that it is easy to construct and easy to construct.

A method of constructing a retaining wall for constructing a retaining wall using the concrete panel 100 for a retaining wall having the above-described structure will be described.

First, as shown in FIG. 9, the step of cutting the ground to form the inclined plane 1001 is performed.

Next, as shown in FIG. 10, a bottom portion of the inclined surface 1001 may be cut to form a groove portion 1003, and concrete may be laid to form a flat base portion 1004. FIG.

Next, as shown in FIG. 11, a step of puncturing the anchor installation hole 1005 is performed on the inclined surface 1001.

Next, as shown in FIG. 12, a step of inserting the one end of the anchor 1007 into the installation hole 1005 is performed.

Next, as shown in FIG. 13, a step of filling the anchor installation hole 1005 with the anchor fixing concrete 1006 in a state where the anchor 1007 is inserted into the installation hole 1005 is cured do.

Next, as shown in FIG. 14, the concrete panel 100 for a retaining wall is vertically seated on the upper surface of the base portion 1004 such that the lower surface of the concrete panel 100 for a retaining wall having the above- The other end of the anchor 1007 is inserted through the hollow portion 121, which is obliquely perforated toward the rear lower side, through the center protruding portion protruding from the front center portion of the anchor 1007.

15, filling the backfilling concrete 1008 such that the anchor 1007 is embedded in the space between the back surface of the retaining wall concrete panel 100 and the inclined surface 1001, .

Next, the step of fixing the other end of the anchor 1007 to the retaining wall concrete panel 100 in a state in which the anchor 1007 is stretched is performed.

Next, a step of curing the backfilling concrete 1008 is performed.

Next, as shown in FIG. 16, the step of filling the top of the poured concrete filled with the gravel 1009 is performed.

A method of constructing a retaining wall using the concrete panel 100 for a retaining wall having the above-described construction will be described.

First, as shown in FIG. 17, a step of cutting the ground in an area where a retaining wall is to be constructed to form a slope 1001 is performed.

Next, as shown in FIG. 18, a step of forming a wedge-shaped groove portion 1002, which is formed to be larger in diameter than the entrance portion, is performed by excavating a part of the inclined face 1001.

Next, as shown in FIG. 19, a step of forming the flat base portion 1004 by arranging the lower portion of the inclined plane 1001 horizontally is performed.

For example, it is possible to cut a part of the lower part of the inclined plane 1001 to form a groove 1003, and then to pour concrete to form a flat base 1004.

Next, as shown in FIG. 20, the step of drilling the anchor mounting hole 1005 is performed on the inner surface of the wedge-shaped groove portion 1002.

Next, as shown in FIG. 21, a step of inserting the one end of the anchor 1007 into the anchor installation hole 1005 is performed.

22, a fixing concrete 1006 for fixing the anchor 1007 to the anchor mounting hole 1005 in a state where the anchor 1007 is inserted into the anchor mounting hole 1005, Is filled and cured.

Next, as shown in FIG. 23, the bottom surface of the retaining wall concrete panel 100 is vertically seated on the upper surface of the base portion 1004, and the front center portion 1004 of the retaining wall concrete panel 100 The other end of the anchor 1007 is inserted into the hollow portion 121, which is obliquely perforated toward the rear side downward, through the center protruding portion 120 protruding from the anchor 1007.

At this time, when the concrete panel 100 for the retaining wall is completed, the annular portion 170 is formed. Concrete is buried in the groove portion h to prevent corrosion of the annular portion 170.

On the other hand, a pipe 1007a for protecting the anchor 1007 can be inserted.

24, a space between the back surface of the retaining wall concrete panel 100 and the inclined surface 1001 and a space between the back surface of the concrete panel 100 for backfilling and the wedge-shaped grooves 1002 are filled with the anchor 1007, Concrete 1008 is filled.

When the filling of the backfill concrete 1008 is completed, before the backfill concrete 1008 is completely cured, the other end of the anchor 1007 is pulled up for the retaining wall 1007 in a state in which the anchor 1007 is pulled. And is fixed to the concrete panel 100. When the installation of the anchor 1007 is completed, the backfilling concrete 1008 is cured.

Next, as shown in FIG. 25, the step of filling the gravel 1009 with the upper portion of the cured back filling concrete 1008 is performed.

Therefore, vegetation is possible on the upper part of the filled gravel 1009.

The above-described process is repeated to construct a retaining wall of the type shown in Fig.

Although the present invention has been described with reference to the preferred embodiments thereof with reference to the accompanying drawings, it will be apparent to those skilled in the art that many other obvious modifications can be made therein without departing from the scope of the invention. Accordingly, the scope of the present invention should be interpreted by the appended claims to cover many such variations.

100: concrete panel for retaining wall 110: panel body part
120: central protrusion 130:
140: reinforcing portion 151, 153, 155: reinforcing portion
160: Drain hole 170:

Claims (3)

A plate-like panel body portion;
A central protruding portion protruding from a central portion of the front surface of the panel body portion and having a hollow formed obliquely perforated in a rearward direction and having a multistage groove formed at different angles to communicate with the hollow, ;
A transverse portion formed in a shape of a trapezoidal section in the center protruding portion toward the front lower side of the panel body portion so that the protruding thickness is the same and the protruding width gradually becomes smaller;
A pair of reinforcing portions formed in a mutually symmetrical shape such that a protruding thickness and a protruding width gradually decrease from the central protruding portion toward the upper both side corners of the front surface side of the panel body portion;
The central projecting portion, the counterweight portion, and the pair of reinforcing portions, which are provided in the panel body portion, the center projecting portion, the counterweight portion, and the pair of reinforcement portions, Rebar section;
A drain hole formed in the panel body portion so as to be symmetrically positioned on the outside of the pair of reinforcement portions; And
And an annular portion disposed on both sides of the upper surface of the panel body portion so as to be positioned in a space of a groove portion which is mutually symmetrical,
Wherein the combined weight of the pair of reinforcing portions and the reinforcing portions provided in the pair of reinforcing portions is smaller than the combined weight of the reinforcing bars provided in the buckle and the buckle portion so that the center of gravity is lower than the center protruding portion Of the concrete panel. delete Cutting the ground to form a slope;
Forming a wedge-shaped groove portion that is formed to be larger in diameter than an entrance portion by excavating a part of the inclined surface;
Forming a flat base portion by horizontally arranging a lower portion of the inclined surface;
Drilling an anchor hole on an inner surface of the wedge-shaped groove;
Inserting one end of the anchor into the installation hole;
Filling the anchor fixing hole with the anchor fixing concrete in a state where the anchor is inserted into the mounting hole and curing the anchor fixing hole;
The concrete panel for a retaining wall according to claim 1, wherein the concrete panel has a bottom surface vertically positioned on the upper surface of the base portion so that the bottom surface of the concrete panel for a retaining wall is positioned thereon, Penetrating the other end of the anchor;
Filling the backfilling concrete so that the anchors are embedded in the space between the back surface of the concrete wall panel and the inclined surface and the wedge-shaped grooves;
Fixing the other end of the anchor to the retaining wall concrete panel with the anchor stretched;
Curing the backfill concrete; And
And filling the top of the poured concrete after the poured concrete with gypsum.

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