KR101527703B1 - Revetment Block and Installation Method Thereof - Google Patents

Abstract

The present invention relates to a retaining wall block, a retaining wall block assembly, and a construction method thereof. The retaining wall block having a decorative board (S) mounted on the front surface comprises: a first coupling groove (110) laterally formed on the top to arrange a tensile bar; third coupling grooves (130) vertically cut in the upper part of the front surface at a predetermined depth and communicated with the first coupling groove; and fixing devices (50) having a front end (51) arranged in the third coupling groove and a rear end (55) arranged in the first coupling groove and in which fixing pins penetrating the decorative board are inserted. A mounting groove on which the rear end of the fixing device is mounted is additionally formed on the first coupling groove. The present invention can conveniently and safely mount the decorative board on the front surface of retaining wall blocks while making the appearance of the decorative board beautiful. The retaining wall block assembly formed by laterally connecting the retaining wall blocks on which the decorative board is conveniently mounted by the fixing device and the construction method thereof can improve the erection force, durability, and safety of the retaining wall assembly and retaining walls by obtaining a tensile force using the tensile bar and a coupling force between the retaining wall blocks using a coupling reinforcing bar.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a retaining wall block assembly including a retaining wall block and a retaining wall block,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforced earth retaining wall block and a method of constructing the same, and more particularly, to a reinforced earth retaining wall block capable of effectively securing a decorative plate to a front portion thereof and a method of constructing the same.

Reinforced concrete retaining wall formed on incision surface made of clay ground or rock is reinforced with reinforcement to reinforce the shear force of concrete, and then formwork is installed on the outside, concrete is laid in the formwork, And filled with a backfilled soil including gravel, rubble, crushed stone, and the like on the back surface of the wall.

However, the retaining wall of reinforced concrete with built-in reinforcing bars is used for a long time and is excellent in field application. However, the concrete thickness and reinforcing steel increase exponentially according to the height of installation, There is a disadvantage that the surface is degraded when the surface is not designed so that the surface is exposed.

As a conventional technique for retaining a retaining wall, when a retaining wall is constructed, a plurality of retaining wall blocks are stacked in a transverse direction and a longitudinal direction along a ground surface or incision surface, A method of constructing a retaining wall block which is constructed by filling the wall with a pouring material is proposed.

Such a retaining wall block construction technique has a problem that the entire retaining wall is also made of concrete, so that the appearance is not good. To solve this problem, Japanese Patent Application No. 10-1201610 discloses a technique in which a decorative plate is mounted on the front portion of a retaining wall block. That is, in the prior patent, a pin hole 34 is formed at a central portion thereof, which is formed of reinforced plastic formed for joining the engaging hole 12, the mounting pin 15, and the front block 40, Type fastening tool 30 having a binding portion 37 on the rear surface thereof and a hook type recessed portion 30 formed on the upper surface of the front portion 43 of the front block 40, 42), which makes it difficult to construct and construct the retaining wall block, and the construction time is increased.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of easily and safely mounting a decorative plate on a front wall of a retaining wall block while solving the problems of the related art.

The present invention relates to a retaining wall block to which a decorative plate (S) is attached on a front surface, the first retaining groove (110) being formed in a transverse direction on an upper surface thereof and in which a tension rod (200) is disposed; A third coupling groove (130) cut at a predetermined depth in a vertical direction from an upper portion of the front surface and communicating with the first coupling groove; A fixing device 50 in which a front end portion 51 is disposed in the third engagement groove and a rear end portion 55 is disposed in the first engagement groove 110 and a fixing pin passing through the decorative plate is inserted, Wherein the first fastening groove is additionally formed in a seating groove on which the rear end of the fastening device is seated.

The fixing device 50 is a cylindrical member and includes a front end portion 51 into which a fixing pin is inserted and a rear end portion 55 which is larger in diameter than the front end portion. And a fixing pin insertion member 60 into which the fixing pin P is inserted and fixed is disposed in the hollow space. The cap may further include a cap disposed above the fixing device to protect the fixing device.

The present invention also relates to the above-mentioned retaining wall block; A tension rod (200) inserted at one side of the retaining groove of the retaining wall block and coupled to the other end of the anchor body to provide pulling resistance to the retaining wall block; And a coupling reinforcing rod for reinforcing a coupling between the retaining wall block and the second retaining wall block by inserting a part of the retaining groove into the coupling groove of the second retaining wall block, 300). ≪ / RTI >

Further, the present invention further includes a protective pipe for supplementing the strength of the bent portion of the tensile rod inserted and fastened to the fastening groove of the retaining wall block.

According to another aspect of the present invention, there is provided a method of constructing a foundation, comprising the steps of: A second step of disposing a plurality of retaining wall blocks according to any one of claims 1 to 4 adjacent to each other on the foundation foundation provided in the first step; A third step of inserting a tensile rod or a bundle reinforcing rod into the fastening groove on the retaining wall blocks installed in the second step; A fourth step of inserting the tensile rod inserted into the coupling groove of the retaining wall block in the third step into an anchor body provided on the ground on the rear side of the retaining wall block; A fifth step of filling a space between the anchor body and the retaining wall blocks joined with the tension rods in the fourth step; And a sixth step of securing the retained wall portion to a predetermined multi-point density in the fifth step.

It is possible to easily and safely attach the decorative plate to the front portion of the retaining wall block while taking advantage of the beauty of the decorative plate of the present invention.

In addition, the retaining wall block assembly in which the retaining wall blocks, which are easily mounted with the decorative plate using the fixing device according to the present invention, is connected laterally and the construction method using the retaining wall block assembly is characterized in that the tension force is secured through the tension rods, The self-supporting force of the retaining wall assembly and the retaining wall is improved, the durability is increased, and the safety is improved.

1 is a perspective view of a retaining wall block to which a decorative plate according to the present invention is attached,
2 is an exploded perspective view of a retaining wall block with a decorative plate according to the present invention,
FIGS. 3A to 3C are views showing an internal configuration of a fixing device used in a retaining wall block according to the present invention,
4 is a cross-sectional view of the internal components of the retaining device of the retaining wall block according to the present invention,
5 is a cross-sectional view showing the principle of fixing the fixing pin to the retaining wall block according to the present invention,
6 is a perspective view schematically showing a tension rod of a retaining wall block assembly according to an embodiment of the present invention,
FIGS. 7 to 9 are views schematically showing a retaining wall block assembly according to an embodiment of the present invention in which a tension rod and an anchor body are coupled.
10 is a plan view schematically showing a retaining wall block assembly according to an embodiment of the present invention applied to a convex topography,
11 is a flowchart schematically showing a method of constructing a retaining wall block assembly according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. And certain features shown in the drawings are to be enlarged or reduced or simplified for ease of explanation, and the drawings and their components are not necessarily drawn to scale. However, those skilled in the art will readily understand these details.

1 and 2, a retaining wall block 100 according to the present invention is mounted on a front surface thereof with a decorative plate S using a fixing pin P. For this, the decorative plate S is provided with a mounting hole S1 into which a fixing pin is inserted, and the diameter of the mounting hole is formed to be slightly smaller than the outer diameter of the fixing pin so that the decorative plate is firmly inserted into the fixing pin . The decorative plate may be a partially cut natural stone, or may be a slab processed so that the front surface may be aesthetically pleasing.

The first fastening groove 110 and the second fastening groove 120 are formed on the upper surface of the retaining wall block 100 and the third fastening groove 130 is formed in the upper surface of the retaining wall block 100, The third fastening groove (130) communicates with the first fastening groove (110) to allow the first fastening groove to pass through the entire surface. The first fastening groove and the second fastening groove are for self-supporting the retaining wall block because it is difficult for the retaining wall block 100 to exhibit a self-standing function by itself. That is, the retaining wall block is fastened with the tension rod 200 to be described later, and the other end of the tension rod 200 is fastened to the anchor body 500. For this, the retaining wall block 100 is formed with the coupling grooves 110 and 120 . The clamping grooves 110 and 120 are inserted and clamped by a tension rod 200 or a coupling reinforcing rod 300 which will be described later. The retaining wall block 100 of the present invention is provided with a fixing device 50 for fixing the decorative plate S over the first and third coupling grooves 110 and 130.

FIGS. 3A to 3C are views showing the internal construction of a retaining device used in the retaining wall block according to the present invention, and FIG. 4 is a sectional view of the internal components of the retaining wall block retaining device according to the present invention.

The fixing device 50 is a cylindrical member and includes a front end portion 51 having a small diameter and a rear end portion 55 having a large diameter. The front end portion 51 is located in the third fastening groove 130 and the rear end portion 55 is placed in the first fastening groove 110 of the retaining wall block. The first fastening groove is formed with an additional groove downward at a position where the rear end portion is located, so that the rear end portion stably lays down. In addition, a cap (not shown) may be further provided on the fixing device 50 in a state where the fixing device 50 is disposed in the first coupling groove.

In the fixing device 50, the front end portion 51 has a cylindrical hollow space 52 formed therein, and a protrusion 53 protruding inward in the radial direction is provided in front of the hollow space. A fixing pin insertion member 60 to which a fixing pin P for fixing the decorative plate S is inserted and fixed is disposed in the hollow space 52 in the front end portion 51 of the fixing device. The fixing pin insertion member 60 is a cylindrical member and has an insertion hole 65 penetrating in the longitudinal direction to insert a fixing pin. An outer circumferential surface of the fixing pin insertion member is formed with an outer circumferential groove (61) in which the protrusion (53) of the fixing device is located. The fixing pin insertion member 60 is fixed to the inside of the fixing device 50 by locating the projection 53 of the fixing device 50 in the outer circumferential groove 61 of the outer circumferential surface.

The fixing pin insertion member 60 is provided on the outer circumferential surface thereof with a spacing member 80 for holding the fixing pin holding member 70 and the fixing pin holding member 70 at specific positions. The stationary pin holding member 70 includes a longitudinal member 75 disposed along the outer circumferential surface of the stationary pin insertion member 60 and disposed along the longitudinal direction of the stationary pin insertion member 60, And a radial member 71 formed substantially perpendicular to the longitudinal member 75 and radially disposed toward the central portion. The end of the radial member 71 is formed so as to protrude slightly inward of the insertion hole 65 of the fixing pin insertion member (FIG. 3B). The spacing member 80 is formed with a groove 85 in which the longitudinal member 75 of the holding pin holding member 70 is seated along the longitudinal direction. The fixing pin holding member may be disposed at a predetermined interval on the outer circumferential surface of the fixing pin insertion member 60 by being seated in the longitudinal holes of the spacing member 80. The spacing member 80 has a cylindrical shape, and a groove 85 is formed in a longitudinal direction on the outer circumferential surface thereof.

5 is a view showing a principle of fixing a fixing pin to a retaining wall block according to the present invention.

The fixing pin P is inserted into the fixing device 50 through the decorative plate S on the front face. At this time, the end of the fixing pin P is inserted while pushing the end of the radial member 71 of the fixing pin holding member 70 while being inserted through the insertion hole 65 of the fixing pin insertion member 60. The fixing pin P is mounted in a state in which the angle of the radial member 71 of the fixing pin holding member 70 with respect to the longitudinal member 75 is increased by the insertion of the fixing pin. In this state, the fixing pin P is prevented from being disengaged in the reverse direction. That is, since the outer circumferential surface of the fixing pin P supports the end of the radial member 71 obliquely, it is prevented from departing in the reverse direction.

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A method of constructing a retaining wall block according to an embodiment of the present invention by using a tension rod and a binding reinforcing rod will be described.

In the retaining wall block 100 according to the embodiment of the present invention, retaining wall blocks of the same type are stacked in the lateral direction and upward, and the retaining wall block located on the side is referred to as a second retaining wall block 400 for convenience. It is difficult for the retaining wall block 100 or the second retaining wall block 400 to exhibit the self-standing function by itself. Therefore, in order to improve the self-standing function of the retaining wall block, the tension rod 200 is fastened to the anchor body 500 and the other end of the tension rod 200 is fastened to the anchor body 500. For this purpose, locking blocks 110 and 120 are formed in the retaining wall block 100. The fastening grooves 110 and 120 are formed so that a tension rod 200 or a coupling reinforcing rod 300 to be described later can be inserted and fastened.

Although the fastening grooves 110 and 120 may have various shapes, the fastening grooves formed in the transverse direction are referred to as first fastening grooves 110 for convenience of explanation, and the fastening grooves formed in the longitudinal direction are referred to as the second fastening grooves 120, . The coupling grooves 110 and 120 are preferably formed to have a width corresponding to the diameter of the tension bar 200 or the coupling reinforcing bar 300 fastened to the retaining wall block 100 or the second retaining block 400. The tension rods 200 and the binding strengthening rods 300 are inserted into the first and second fastening grooves 110 and 120 formed in the retaining wall block 100 and the second retaining wall block 400, Respectively.

Here, when the retaining wall block assembly requires curvature according to the work environment (such as the topography of the construction site) where the retaining wall block assembly is to be installed, the retaining wall block 100 and the retaining wall block 100 may be formed as a convex retention wall block assembly as shown in FIG. The second retaining wall block 400 may be concaved inwardly and then bound through the binding strengthening rod 300. [ In the case of a flat bulge, the bulging phenomenon occurs due to the horizontal force externally generated, and most of the phenomenon occurs in a block in which the tension bar 200 is not installed. Therefore, the coupling strength of each retaining wall block can be equalized by providing a coupling reinforcing rod 300 so that the retaining wall block 100 and the second retaining wall block 400 can be integrated. The tension rod 200 is inserted into the retaining grooves 110 and 120 of the retaining wall block 100 at one side thereof and is coupled to the retaining wall block 100. The other end of the tension rod 200 can be fastened to the anchor body 500 installed in the ground. The tensile rods 200 and the retaining wall block 100 are fastened together and the anchors 500 and the other ends of the tension rods 200 are fastened to each other by inserting the tension rods 200 into the grooves formed in the anchor body 500, A method of fastening the tension bar 200 by inserting the other end of the tension bar 200 into the anchor body 500 (see FIG. 9), and the like. These methods can be appropriately selected and applied in consideration of the conditions of the work site and the like. Thus, the tension rods 200 provide the pullout resistance to the retaining wall block 100.

Here, it is preferable that the tensile rods 200 are provided with corrosion preventing means. That is, it is preferable that corrosion preventing means for preventing or suppressing corrosion of the tension rods 200 inserted into the fastening grooves 110, 120 of the retaining wall block 100 is provided. Here, zinc plating may be exemplified as an example of the corrosion preventing means. That is, a portion of the tension rod 200 inserted into the coupling grooves 110 and 120 of the retaining wall block 100 is galvanized. It is also preferable that the tensile rods 200 are provided with tensile rod reinforcing means for reinforcing the strength. That is, it is preferable that the tensile bar reinforcing means is provided to suppress or supplement the strength reduction of the tensile bar 200 inserted into the engaging grooves 110, 120 of the retaining wall block 100. As an example of such a tensile rod reinforcing means, a protective pipe 220 can be heard. The protective tube 220 complements the strength of the bent portion of the tension rods 200. A part of the tensile rod 200 may be bent to be inserted into the engaging grooves 110 and 120. In this case, it is possible to prevent or suppress the strength reduction of the tensile rod 200 due to a minute crack or the like, or to supplement the strength of the tensile rod 200 It is preferable to cover it with a protective pipe 220 in order to prevent leakage.

More preferably, the protective tube 220 may be overlaid on the zinc-plated tensile rod 200 to prevent the corrosion of the tensile rod 200. The binding strengthening bar 300 is partially inserted into the fastening grooves 110 and 120 of the retaining wall block 100 and fastened. Another portion of the bundle reinforcing rod 300 is inserted into the coupling grooves 110 and 120 of the second retaining block 400 and is coupled to the second retaining block 400. When the coupling reinforcing rod 300 is inserted and fastened into the coupling grooves 110 and 120 of the retaining wall block 100 and the coupling grooves of the second retaining wall block 400, It will strengthen the bond. The binding reinforcing bar 300 may be made of the same material as the tension bar 200. Here, it is preferable that the binding strengthening bar 300 is provided with corrosion preventing means. For example, the binding strengthening bar 300 may be galvanized or surrounded by a protective pipe (not shown) so as to prevent or suppress corrosion of the binding reinforcing bar 300, It is also possible to apply a protective coating of a polymer plastic system. The tension bar 200 is coupled to the retaining wall block 100 to provide a pulling force and the retaining wall block 100 and the second retaining wall block 400 are bound together by the coupling reinforcing rod 300, . ≪ / RTI >

Next, a construction method using a retaining wall block assembly according to an embodiment of the present invention will be described. 11 is a flowchart schematically showing a method of constructing a retaining wall block assembly according to an embodiment of the present invention. A method of constructing a retaining wall block assembly according to an embodiment of the present invention includes steps A to F. The retaining wall block used here is a retaining wall block to which the decorative plate S is attached on the front side using the fixing device 50. [

Step A100 is a step of providing a foundation foundation (not shown). Here, the foundation foundation is provided for strengthening the ground of the part where the retaining wall block assembly is to be built. As an example of the foundation ground, it is possible to use a concrete-laid body, a foundation of a lump using a rubble, or a retaining wall which is installed in advance.

Step S110 is a step of installing the retaining wall block 100 on the foundation foundation provided in the step A100 and installing the second retaining wall block 400 at a position adjacent to the retaining wall block 100. [ 10) so as to be bent between the retaining wall block 100 and the second retaining wall block 400 according to the environment of the work site.

Step C 120 is a step S120 of attaching the tension bar 200 or the coupling reinforcing rod 300 to the retaining wall block 100 or the second retaining wall block 400 installed in the step B 110 Into the coupling grooves 110 and 120 formed in the base plate 400. The C step S120 includes a C1 step of inserting and fixing the tensile rods 200 into the fastening grooves 110 and 120 formed in the retaining wall block 100 and the fastening grooves 110 and 120 formed in the retaining wall block 100, And a C2 step of binding the retaining wall block 100 and the second retaining wall block 400 by inserting the binding reinforcing rod 300 into the coupling grooves 110 and 120 formed in the block 400. [ Here, it is preferable that the reinforcing bars 300 are inserted into the retaining wall blocks where the tension rods 200 are not provided, thereby increasing the binding force of the retaining wall blocks. A portion of the tension bar 200 is bent so that a part of the tension bar 200 can be inserted into the first fastening groove 110 and the second fastening groove 120 formed in the retaining wall block 100. It is preferable that a portion of the tensile rod 200 bent at this time is galvanized or surrounded by the protective tube 220. More preferably, the bent portion of the tensile rod 200 is galvanized, 220, respectively. A part of the binding reinforcing bar 300 is fastened to be inserted into the first fastening groove 110 and the second fastening groove 120 formed in the retaining wall block 100 and the remaining part is fastened to the second retaining wall block 400 And inserted into the first fastening groove 110 and the second fastening groove 120 to be fastened. The binding strengthening rod 300 is inserted into the coupling grooves 110 and 120 formed in the retaining wall block 100 and the second retaining wall block 400 to thereby bind the retaining wall block 100 and the second retaining wall block 400 together.

In step S130, the tension rod 200 inserted into the coupling grooves 110 and 120 of the retaining wall block 100 is inserted into the anchor body 500 provided on the ground on the rear side of the retaining wall block 100, Respectively. The other end of the tensile rod 200 fastened to the retaining wall block 100 at one side is fastened to the anchor body so that the tensile force is increased at the retaining wall block 100 and the second retaining wall block 400. Here, a method of vertically inserting and fastening the tension rods 200 (see Fig. 8) using the groove at the upper end of the anchor body 500 according to the conditions of the work site and the method of rotating the anchor body 500 by 90 degrees, (Refer to Fig. 9) or the like may be used, in which the grooves of the tension rods 200 are aligned with the installation direction of the tension rods 200 and then the anchors 500 are passed through.

Step S140 is a step of filling the space between the retaining wall block 100 and the second retaining wall block 400 with the anchor body fastened to the tension rods 200 in step S130. Here, the method of embedding is not much different from the conventional method.

The F step S140 is a step in which the embossed portion in the E step S140 is maintained to maintain a predetermined degree of compaction. In step E40, the embankment block body is stitched so that the retaining wall block body is stably installed. After the space between the anchor body and the retaining wall block 100 and the second retaining wall block 400 is filled up, the process returns to step S 110 and repeats the process from step F 140 to step S 140, It is possible to construct a retaining wall. Thus, the retaining wall block assembly can be constructed through steps A100 to F (S150).

As described above, the retaining wall block assembly according to the present invention and the construction method using the retaining wall block assembly assure the binding force between the retaining wall blocks through the coupling reinforcing rod 300 while securing a tensile force through the tension rods 200, Is improved, durability is increased, and safety is improved. In addition, since the tension rods 200 need not be provided for every retaining wall block, the construction cost can be reduced.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the scope of the present invention is to be construed as being limited only by the embodiments, and the scope of the present invention should be understood as the following claims and their equivalents.

Claims (7)

As a retaining wall block on which a decorative plate S is mounted by a fixing pin P on its front surface,
A first fastening groove 110 formed on the upper surface in the transverse direction and having the tension bar 200 disposed therein;
A third coupling groove (130) cut at a predetermined depth in a vertical direction from an upper portion of the front surface and communicating with the first coupling groove;
A fixing device 50 in which a front end portion 51 is disposed in the third engagement groove and a rear end portion 55 is disposed in the first engagement groove 110 and a fixing pin passing through the decorative plate is inserted, ;
A seating groove formed in the first coupling groove and on which a rear end of the fixing device is seated;
A fixing pin insertion member 60 provided in a front end portion of the fixing device and inserted and fixed to the fixing pin P;
A plurality of fixing pin holding members (70) provided on the outer periphery of the fixing pin insertion member (60) to prevent the fixing pins from being separated from the fixing pin insertion state; And
And a spacing member (80) formed in a cylindrical shape for holding the fixing pin holding member (70) and having a longitudinal groove (85) on an outer circumferential surface thereof. The method according to claim 1,
The fixing device 50 is a cylindrical member,
And a rear end portion (55) having a diameter larger than that of the front end portion. delete delete A retaining wall block according to claim 1 or 2; And
And a tension rod (200) inserted into and joined to one end of the first fastening groove of the retaining wall block and the other end fastened to the anchor body to provide a pulling resistance force to the retaining wall block. . 6. The method of claim 5,
Further comprising a protection tube for supplementing the strength of the bent portion of the tensile rod inserted and fastened to the first fastening groove of the retaining wall block. A first step of providing a foundation ground;
A second step of installing a plurality of retaining wall blocks according to the first or second aspect adjacent to each other on the foundation foundation provided in the first step;
A third step of inserting a tensile rod into the first fastening groove on the retaining wall blocks installed in the second step;
A fourth step of inserting the tensile rods inserted into the first fastening groove of the retaining wall block in the third step and fastening the tension rods to an anchor body provided on the ground on the rear side of the retaining wall block;
A fifth step of filling a space between the anchor body and the retaining wall blocks joined with the tension rods in the fourth step; And
And a sixth step of securing a portion of the embossed material in the fifth step so as to maintain a predetermined multi-point density.

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