KR100440091B1 - Structure of Block type retaining wall and Construction Method thereof - Google Patents

Abstract

The present invention relates to a building structure of a block-type retaining wall that can be stably constructed in blocks while forming a rear earthwork portion constituting a slope, and a construction method thereof. The technical gist is a landfill support of the reinforcement support in the rear earthwork, stack the blocks on the concrete foundation to pile up the block walls, insert the vertical bar in the hollow of the blocks to support the blocks, and then between the reinforcement support and the block wall It is the construction of block type retaining wall connected to each other by the main connecting member.

Description

Construction of Block type retaining wall and Construction Method

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retaining wall for stably constructing a slope surface forming a rear earthwork part, and more particularly, to a structural structure of a block-type retaining wall that can be beautifully dressed and can be structurally robust, and a construction method thereof.

In general, as a method of constructing a retaining wall by finishing a back earthwork part that forms a slope through fill or cut, there is a construction method of finishing a block wall by stacking blocks on the surface of the back earthwork part. There is a construction method in which shotcrete is poured on the surface of the surface, and a shotcrete layer is formed and finished.

Here, in the case of building the retaining wall with the block wall, the earthwork part can be beautifully beautified by putting various colors on the block, but the binding force between the block wall and the earthwork area on the back decreases, so that the back earthwork part due to rain water during rainy weather There is a structural defect that can easily collapse the block wall by earth pressure. In addition, when the retaining wall is formed by the shotcrete layer, the rear earthwork part can be stabilized to some extent, but has an aesthetic defect that is not good in appearance.

Accordingly, an object of the present invention is to provide a structure for constructing a retaining wall that can beautify beautifully in appearance while constructing a structurally strong rear surface excavation portion that forms a slope and a construction method thereof.

1 is a longitudinal sectional view showing a structure of a block retaining wall according to the present invention;

Figure 2 (a), (b) is a longitudinal sectional view showing a coupling relationship between the concrete foundation and the vertical bar according to the present invention,

3 (a), (b) is a longitudinal sectional view and a perspective view showing a coupling relationship between a block and a vertical bar according to the present invention,

4 is an enlarged longitudinal sectional view of the main part according to the present invention;

5 is a cross-sectional view from above of a state in which a U-shaped connecting member is connected between a block wall and a mesh according to the present invention;

Figure 6a, b is a cross-sectional view and a longitudinal cross-sectional view viewed from the top and side, respectively, the state connected between the block wall and the mesh according to the invention with an L-shaped connecting member,

7 is a perspective view of a state connected between the block wall and the support reinforcement in accordance with the present invention with a U-shaped connecting member,

8 is a perspective view of a state connected between the block wall and the support reinforcement according to the invention with an L-shaped connecting member,

Figure 9 is a perspective view of a state connected between the block wall and the support reinforcement in accordance with the present invention with an eye bolt type connecting member,

10a and 10b are a perspective view and a longitudinal sectional view showing another embodiment as a connecting member between the block wall and the support reinforcement according to the present invention;

11 is a longitudinal sectional view showing a drainage system according to the present invention.

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

10: back earthwork, 20: concrete foundation,

30: block wall, 31: block,

32: vertical bar, 33: spacer

40: shotcrete layer, 50: support reinforcement,

60: main connecting member, 61: support plate,

62: connecting member, 63: turn buckle,

70: Stuffing object, 80: Mesh,

81: horizontal bar, 82: auxiliary connecting member.

Hereinafter, the technical configuration of the present invention in detail.

The structure of the block type retaining wall of the present invention is a support reinforcement for supporting the inside of the rear earthwork, a concrete foundation placed on the ground along the outer periphery of the rear earthwork, and stacked by stacking blocks on the concrete foundation, A block wall for supporting the blocks by inserting a vertical bar into the hollow part of the blocks, a main connecting member connecting the block wall and the extension portion of the support reinforcement with each other, and a filling object filling the rear space of the block wall. It features.

Hereinafter, the present invention will be described in more detail with reference to exemplary embodiments shown in the accompanying drawings.

As shown in FIG. 1, the present invention provides a support reinforcement 50 supporting a prolonged upper portion of the rear earthwork part 10 and a concrete foundation to be poured along the periphery of the rear earthwork part 10. A block wall 30 for stacking the blocks 31 on the concrete foundation, and inserting a vertical bar 32 into the hollow portion of the blocks to support the blocks; and the block wall 30. And a main connecting member 60 connecting the extension portions of the support reinforcement 50 to each other, and a filling object 70 filling the rear space of the block wall 30.

That is, a feature of the present invention is to support the reinforcing support 50 in the back earthwork (10) to the landfill, stacked blocks 31 on the concrete foundation 20 to stack the block wall 30, the main connecting member It is the construction structure of the block retaining wall which connected the reinforcement support 50 and the block wall 30 firmly to each other by (60).

As described above, the present invention can firmly connect the reinforcing supporter 50 and the block wall 30 with the main connecting material 60, so that the horizontal load of the block wall 60 can be handled by the support reinforcing supporter 50. Therefore, according to the present invention, the support reinforcing bar 50 can be structurally secured by bearing the load of the block wall, and can beautify the appearance of the block wall 30 beautifully. At this time, when the external appearance of the block wall 30 is beautified, the beauty can be increased through the shape, color, and the like of the block.

Looking at the present invention in more detail as follows.

2 (a) and 2 (b) show a coupling structure between the concrete foundation 20 and the vertical bar 32. The fitting groove 21 is formed on the concrete foundation 20 to fit the vertical bar 32. When the blocks 31 are stacked, the lower end of the vertical bar 32 is inserted into the fitting groove 21. It is intended to be firmly supported by being inserted.

In FIG. 3 (a) and (b), the vertical bars 32 inserted into the hollow portions of the block 31 are fixed with the spacers 33. After inserting the vertical bar 32 into the hollow portion 31b of the block 31, the vertical bar 32 is fixed by inserting a pair of spacers 33 having a semicircular cross section in which a vertical bar fitting groove is formed. . This can shorten the hardening time as compared to fixing the vertical bar by filling the mortar in the hollow portion of the block 31, it can be expected to shorten the air and increase the workability.

The length of each vertical bar 32 to be inserted into the hollow portion of the block is usually about 1 to 2m, and the vertical bar is plugged in first and then the blocks are stacked up. Then, the spacer is inserted and fixed to the block hollow part. At this time, when connecting the vertical bar 32, it is preferable to insert the mortar filled after inserting so as to overlap the vertical bar in the hollow portion of the block that is the connection portion of the vertical bar.

Meanwhile, as a method of firmly stacking the upper and lower blocks 31, as shown in FIG. 3 (b), stepped portions 31a may be formed on the upper and lower surfaces of the block 31, respectively. In the present embodiment, although the stepped portions 31a are formed in the lateral direction (length direction) of the block, the stepped portions may be formed in the longitudinal direction. And grooves are formed to arrange the connecting members on the upper surface of the block.

In addition, although not shown, another method for firmly stacking the upper and lower blocks 31 is to stack the upper portion of the spacer 33 so as to project slightly when the spacer 33 is fitted to the hollow portion of the block. By allowing the hollow portion of the block to be fitted over the protruding spacer 33, the upper and lower blocks can be firmly stacked.

4 deeply supports the reinforcing supporter 50 in the rear earth excavation portion 10 and forms a shotcrete layer 40 on the inclined surface of the rear earth excavation portion 10. Here, the reinforcing support 50 is a structure that is firmly supported in the rear earthwork, and bears the horizontal load of the block wall, it can be installed in a number depending on the needs of the construction site.

In addition, the shotcrete layer 40 is for preventing the collapse of the rear earthwork part 10, and is formed only when the rear earthwork part 10 is sand or soil, and does not need to be formed when it is rock. The shotcrete layer 40 may be formed by pouring in double or triple, depending on the needs of the construction site.

In addition, a reinforcing mesh 80 may be disposed on the surface of the shotcrete layer 40, and horizontal bars 81 may be installed on the outer surface of the mesh 80 in the horizontal direction, and the horizontal bars ( 81 is fixed to the extension part of the support reinforcement stand 50.

At this time, in order to increase the integrity between the shotcrete layer 40 and the block wall 30, the auxiliary connection member 82 is connected between the mesh 80 and the block wall 30. The auxiliary connection member 82 may use a "U" shaped connecting member, an "L" shaped connecting member, and the like of the English alphabet.

5 is a plan sectional view from above of the connection state of the “U” shaped connecting member 82a as the auxiliary connecting member 82. The curved portion of the "U" shaped connecting member is connected to the vertical bar 32 and both ends are supported by the mesh 80.

6A and 6B are cross-sectional views of the connection state of the “L” shaped connecting member 82b as viewed from the top and side, respectively. The curved portion of the "L" shaped connecting member is inserted into the hollow portion 31b of the block 31, and the end portion thereof is supported by the mesh 80. Meanwhile, the U- and L-shaped connecting members may be bent at the ends thereof to connect to the mesh 80 or may be directly welded to the mesh to be fixed.

7 to 10b show the main connecting member 60 connecting the block wall 30 and the support reinforcement 50 to each other. The support plate 61 with the connecting rod 61a is rotatably coupled to the extension of the support reinforcement 50. And it connects between the connecting rod 61a of the support plate 61, and a block wall (vertical bar or a block) with the connecting member 62. As shown in FIG. The reason why the support plate 61 is rotatably coupled is that the support plate 61 is rotated to coincide with each other because the support member 61 and the extension of the support reinforcement 50 are not exactly matched. Here, the connecting member 62 may use a U-shaped connecting member 62a, an L-shaped connecting member 62b as the auxiliary connecting member, and an eye bolt 62c or the like.

7 shows the connection between the support plate 61 and the block wall 30 by the U-shaped connecting member 62a. The bent portion of the U-shaped connecting member 62a is connected to the vertical bar 32, and both ends thereof are respectively fixed to the connecting rod 61a of the support plate 61.

8 shows the connection between the support plate 61 and the block wall 30 by the L-shaped connecting member 62b. The bent portion of the L-shaped connecting member 62b is inserted into the hollow portion of the block 31, and the end portion thereof is fixed to the connecting rod 61a of the support plate 61.

9 shows that the connecting member is connected between the support plate 61 and the block wall 30 by the eye bolt 62c. The round ring portion of the eye bolt 62c is connected to the vertical bar 32, and the end is fixed to the connecting rod 61a of the support plate 61.

10A and 10B are connected to the turn buckle 63 which can adjust the length at the end of the eye bolt 62c. Therefore, by appropriately adjusting the turn buckle 63 can be adjusted by connecting the gap between the support plate 61 and the block wall (30). In this embodiment, the turn buckle 63 is illustrated as connecting only to the eye bolt 62c, but the turn buckle may also be connected to the U- and L-shaped connecting members 62.

On the other hand, in the present embodiment shows that the U-shaped connecting member 62a, L-shaped connecting member 62b and the end of the eye bolt 62c is fixed to the connecting rod (61a) attached to the rotary support plate 61, Without the connecting rod 61a, the end of the connecting member may be directly connected to the rotary support plate 61. That is, a screw portion may be formed at the end of the connecting member, and the end of the connecting member may be penetrated through the support plate 61, and then may be connected by fastening with a nut to the screw portion of the connecting member protruding to the rear surface of the support plate.

FIG. 11 illustrates a drainage system for draining the infiltration water penetrating into the rear earthwork portion 10. Looking at the drainage structure, the infiltration pipe 90 is inclined in the rear earthwork portion 10 and sucks the infiltration water, and the infiltration pipe 90 is installed on the inclined surface of the rear earthwork portion 10 and connected to the infiltration pipe 90 A drain board 91 for sending water to the lower portion, a collecting pipe 94 for collecting water flowing down and installed in the lower portion of the drain board 91, and a water collecting port 94 for draining the water of the collecting pipe 94. It consists of a drain pipe 93 to drain to. Therefore, the infiltration water penetrated into the back earthwork part 10 is sucked into the infiltration pipe 90 and collected into the water collecting pipe 94 through the drain board 91, and again to the sewer 92 through the drain pipe 93. It flows in.

Referring to Figure 1, the method for constructing the retaining wall of the present invention will be described.

a) after the rear earthwork 10 is formed, install the reinforcement support 50, but install the extension of the reinforcement support to protrude to the outside,

b) pouring concrete foundation 20 along the lower periphery of the rear earthwork;

c) stacking the blocks 31 on the concrete foundation to stack the block wall 30, inserting and supporting the vertical bar 32 in the hollow of the blocks,

d) between the block wall and the extension of the support reinforcement with a main connecting member 60,

e) This is completed by filling the filling object 70 in the back space portion of the block wall.

Here, after the reinforcing support is provided, it is preferable to form the shotcrete layer 40 on the inclined surface of the rear earth excavation portion when the rear earth excavation portion 10 is sand or soil. The inclination of the shotcrete layer 40 is determined by the rear earthwork 10. The inclination of the rear earthwork part 10 is preferably 70 to 70 degrees. On the other hand, it is stable that the block wall 30 also has a slight inclination toward the back earthwork part.

In addition, the reinforcing mesh 80 may be provided on the surface of the shotcrete layer 40. At this time, the horizontal bar 81 is fixed to the extension of the support reinforcement 50 in the horizontal direction on the outer surface of the mesh 80 to support the mesh 80.

The filling material 70 may be filled with mortar when the space is narrow, and when the space is relatively large, it is filled with crushed stone, concrete and the like.

On the other hand, when forming the rear earthwork (10), the penetration pipe (90), the rail board (91), the collecting pipe (94) are installed, and when the concrete foundation (20) is poured, the drain pipe (93) and the sewer ( 92) are also installed.

As described above, in the present invention, the surface of the rear earthwork part 10 is poured into the shotcrete layer 40, and the block wall 30 is firmly connected to the support reinforcement 50 anchored in the rear earthwork part 10. By doing so, it has an effect which can be made structurally strong.

In addition, the present invention has the effect of beautifully beautifying the appearance of the wall through the shape, color and the like of the block.

Claims (19)

A support reinforcement 50 supporting the upper extension portion protruding from the rear earthwork portion 10; A concrete foundation 20 to be poured along the outer periphery of the rear earthwork portion 10; A block wall (30) for stacking and stacking blocks (31) on the concrete foundation and supporting the blocks by inserting vertical bars (32) into the hollow portions of the blocks; A support plate 61 rotatably coupled to an extension of the support reinforcement 50; A connection member 62 connecting the support plate 61 and the block wall 30 to each other; A block structure retaining wall, characterized in that composed of a filling object 70 to fill the back space portion of the block wall (30). The method of claim 1, Forming structure of the block-type retaining wall, characterized in that the fitting groove 21 is formed on the upper portion of the concrete foundation 20, and the lower end of the vertical bar 32 is inserted into the fitting groove. The method of claim 2, And a spacer (33) is inserted into the hollow portion of the block (31), and the vertical bar (32) is inserted and supported in a hole formed in the center of the spacer (33). The method of claim 3, The spacer 33 is a block structure of the retaining wall, characterized in that the upper part of the spacer so as to project the upper and lower blocks to be connected to each other. The method of claim 1, The construction structure of the block retaining wall, characterized in that to form a shotcrete layer (40) on the inclined surface of the rear earthwork (10). The method of claim 5, A mesh 80 is disposed on the surface of the shotcrete layer 40, and horizontal bars 81 are horizontally installed on the outer surface of the mesh 80, and the horizontal bars 81 are supported. A building structure of a block retaining wall, characterized in that it is fixed to the extension of the reinforcement. The method of claim 5, A block structure retaining wall, characterized in that for connecting the block wall 30 to the mesh (80) by the auxiliary connecting member (82). The method of claim 7, wherein The auxiliary connecting member 82 constitutes a "U" shaped connecting member 82a, the curved portion of the "U" shaped connecting member is connected to the vertical bar 32 to support it, and both ends of the mesh 80 A building structure of a block retaining wall, characterized in that the fixing to). The method of claim 7, wherein The auxiliary connecting member 82 constitutes an "L" shaped connecting member 82b, the bent portion of the "L" shaped connecting member is inserted into and supported by the hollow portion of the block 31, the end portion of the mesh 80 A building structure of a block retaining wall, characterized in that the fixing to). delete The method of claim 1, The connecting member 62 constitutes a "U" shaped connecting member 62a, and the curved portion of the "U" shaped connecting member is connected to the vertical bar 32 to be supported, and both ends of the supporting plate 61 are supported. A building structure of a block retaining wall, characterized in that fixed to the. The method of claim 1, The connecting member 62 constitutes an "L" shaped connecting member 62b, the bent portion of the "L" shaped connecting member is inserted into and supported by the hollow portion of the block 31, the end of the supporting plate (1) A building structure of a block retaining wall, characterized in that fixed to the. The method of claim 1, The connecting member 62 is connected to the eye bolt (62c), connecting the ring portion to the vertical bar (32), the end portion of the block structure retaining wall, characterized in that fixed to the support plate (61). The method according to any one of claims 11 to 13, Block structure of the retaining wall, characterized in that for adding a turn buckle (63) adjustable in length to the end of the connecting member. The method according to any one of claims 1 to 9 or 11 to 13, An infiltration pipe 90 embedded in the rear earthwork portion 10 to be inclined and sucks moisture, a drain board 91 connected to the infiltration pipe, a collecting pipe 94 installed under the drain board, and The upper structure is connected to the collecting pipe and the lower portion of the building structure of the block-type retaining wall, characterized in that consisting of a drain pipe (93) connected to the sewer (92). a) after creating the rear earthwork, install the support reinforcement, but install the extension of the support reinforcement b) placing a concrete foundation along the lower periphery of the rear earthwork; c) stacking blocks on the concrete foundation to stack block walls, inserting and supporting vertical bars in the hollows of the blocks, d) rotatably coupling the support plate to an extension of the support reinforcement, e) connecting between the block wall and the support plate with a connecting member, f) A method for constructing a retaining wall, which is completed by filling a filling object in the back space of the block wall. The method of claim 16, And a shotcrete layer is formed on the inclined surface of the rear earthworking part after installing the supporting reinforcing bar. The method of claim 17, And after forming the shotcrete layer, a mesh is disposed on the surface of the shotcrete layer, and a horizontal bar is fixed to an extension of the support reinforcement in a horizontal direction on an outer surface of the mesh. The method according to any one of claims 16 to 18, Retaining wall construction method characterized in that the infiltration pipe, the rail board and the collecting pipe is installed to be connected to each other at the time of the rear earth excavation portion, and when the concrete foundation construction, the drain pipe is connected to the collecting pipe and at the same time the sewer is installed. .