KR100719281B1 - A Block assembly for retaining wall - Google Patents

Abstract

The present invention relates to a block assembly for reinforcing earth retaining wall construction, wherein upper and lower blocks having connection pin insertion grooves 12 formed on both sides of an upper surface thereof, and having a through hole 14 formed outside the connection pin insertion groove 12, 10), the lower end is inserted into the connecting pin insertion groove 12 of the lower block 10 and the exposed upper part is connected to the through pin 14 of the through hole 14 of the upper block 10, and the tip is In the reinforced soil retaining wall made of a geogrid reinforcement 30 is inserted between the upper, lower blocks and supported by the connecting pin and the rear end is embedded in the reinforcement body, the connecting pin insertion grooves 12 on both sides of the block 10 are each block. It is formed in a long rectangular shape toward the front and rear direction of the (10), the connecting pin insertion groove 12 is formed adjacent to the left and right adjacent to each other two rectangular insertion grooves (12a, 12b), this rectangular insertion groove Side surfaces 12a and 12b are partially in communication with each other; The binding pin 20 has a lower anchor portion 22 that fits into the connecting pin insertion groove 12, and extends upwardly of the anchor portion 22 to be exposed to the upper portion of the lower block 10 and the upper block 10. It consists of a connecting portion 24 of the upper portion fitted to the through hole 14 of the first, and the first and second protrusions ( 24a, 24b).

Reinforcement soil, retaining wall, block, connecting pin, back stitch, slope,

Description

Reinforced soil retaining wall assembly {A Block assembly for retaining wall}

1 is a perspective view of a retaining wall building block and a connecting pin according to the present invention;

2 is a plan view of a retaining wall building block according to the present invention;

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a perspective view showing a state in which a vertical retaining wall is constructed by a block according to the present invention;

5 is a side cross-sectional view of a vertical retaining wall constructed as in FIG. 4,

6 is a cross-sectional view showing a state in which the inclined retaining wall with a small bit back is constructed by the block according to the present invention;

7 is a cross-sectional view showing a state of constructing an inclined retaining wall having a larger back angle than FIG. 6;

8 is a plan view of a straight retaining wall constructed of blocks according to the present invention;

9 and 10 are plan views of curved retaining walls each constructed of blocks according to the present invention.

* Explanation of symbols for main parts of the drawings

10: block 12: connecting pin insertion groove

12a, 12b: rectangular insertion groove 14: through hole

20: connecting pin 22: anchor portion

24: connecting portion 24a: first projecting surface

24b: 2nd protruding surface 30: Reinforcing material

40: reinforced earth

The present invention relates to a block for constructing a reinforced soil retaining wall, and in detail, connecting pin insertion grooves formed at both sides of the upper surface of the block are each formed in a long shape in a rectangular direction toward the front and rear direction of the block, and two insertion groove side surfaces formed to be shifted back and forth partially communicate with each other. The connection pin inserted therein is formed of an anchor portion of the lower portion and an upper portion of the upper portion of the upper portion of the upper portion of the lower block exposed to the upper portion of the lower portion of the anchor portion. By having the first and second protruding surfaces having different degrees of protruding from the rear, turning the connecting pin back and forth and selecting the insertion groove, the vertical retaining wall can be constructed as well as the inclined retaining wall having various inclinations. It would be.

In general, the retaining wall refers to a structure for preventing soil from falling down by resisting soil pressure, and the block-assembled reinforced earth retaining wall, which is the field to which the present invention belongs, connects the block up and down with a concrete block molded in a factory. It is used in the construction of roads, railways, factory areas or apartment complexes by combining three elements of reinforcement buried in the connecting pins and soil.

As a result of the investigation by the applicant, such a technology for retaining wall construction blocks includes wall blocks and wall structures (keystone blocks) of Patent Publication No. 1988-701804, reinforcement retaining wall blocks of Patent No. 461986, Utility Model Registration No. 369476 The reinforcement soil retaining wall assembly of the arc.

On the other hand, the conventional retaining wall construction block is a problem in that when the shape of the connecting pin is a simple circular rod, the inclination of the retaining wall cannot be formed except at a vertical or one predetermined angle, and the connecting pin and the cap are not structurally solid and constructed. There were problems such as time, and these problems led to many problems in designing various retaining walls having proper slopes suitable for the site conditions.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to simplify the structure of a connecting pin for fixing a block and a front end of a geogrid reinforcement to a block while simultaneously interlocking the block and the block. It is intended to facilitate the manufacture, and to use it to easily construct any structure required in the construction site, that is, straight or curved vertical and inclined retaining wall.

In order to achieve the above object, the present invention has upper and lower blocks formed with connecting pin insertion grooves formed on both sides of the upper surface of the connecting pin insertion grooves, and the lower end is inserted into the connecting pin insertion grooves of the lower block. The exposed upper portion of the reinforcement soil retaining wall made of a geogrid reinforcement is connected to the connecting pin is inserted into the through hole of the upper block, the front end is sandwiched between the upper and lower blocks and supported by the connecting pin and the rear end is embedded in the reinforcement body; The block has a connecting pin insertion grooves on both sides thereof are elongated in a rectangle toward the front and rear directions of the block, respectively; The connecting pin is composed of a lower anchor portion that is inserted into the connecting pin insertion groove, and an upper portion of the upper portion of the upper portion of the lower block which is formed to extend above the anchor portion and is fitted into the through hole of the upper block. Provided is a reinforcement earth retaining wall building block for adjusting the inclination of the retaining wall surface by inserting the connecting pin back and forth with different first and second protruding surfaces which protrude from the front and rear of the anchor portion, respectively.

In a preferred embodiment of the present invention, the connecting pin insertion grooves are formed adjacent to the left and right sides so that the two rectangular insertion grooves are shifted back and forth, respectively, so that the sides of the rectangular insertion grooves partially communicate with each other to select the fastening position of the connection pins. It is also possible to adjust the inclination of the retaining wall surface.

In a preferred embodiment of the present invention, the connecting pin is made of a H-shaped cross-sectional structure to have a high strength with a small material, the surface of the first and second protruding surfaces formed before and after the connecting portion of the upper connection pin is formed in a semicircular shape .

Hereinafter, with reference to the accompanying drawings, preferred embodiments that do not limit the present invention will be described in detail.

1 is an exploded perspective view showing the retaining wall construction block and the connecting pin according to the present invention, Figure 2 is a plan view of the retaining wall construction block according to the present invention, Figure 3 is a cross-sectional view of the retaining wall construction block according to the present invention. 4 is a perspective view showing a state where a vertical retaining wall is formed with a block according to the present invention.

As shown in FIG. 1 to FIG. 4, the upper and lower blocks in which the connecting pin insertion grooves 12 are formed on both sides of the upper surface and the through holes 14 are drilled outward of the connection pin insertion grooves 12 are provided. 10, the lower end portion is inserted into the connecting pin insertion groove 12 of the lower block 10, and the exposed upper portion is the connecting pin 20 fitted into the through hole 14 of the upper block 10, and the tip portion is In the reinforcement soil retaining wall of the geogrid reinforcement 30 is inserted between the upper, lower blocks and supported by the connecting pin and the rear end is embedded in the reinforcement body, the connecting pin insertion grooves 12 on both sides of the block 10 are respectively It is formed to have a long rectangular shape toward the front and rear direction of the block 10, the connecting pin insertion groove 12 is formed adjacent to the left and right side so that the two rectangular insertion grooves (12a, 12b) are shifted back and forth, respectively, this rectangular insertion Side surfaces of the grooves 12a and 12b are partially in communication with each other, and the connecting pin 20 A lower anchor portion 22 fitted into the connecting pin insertion groove 12, and formed to extend above the anchor portion 22 is exposed to the upper portion of the lower block 10 and through holes of the upper block 10 ( 14 is formed of a connecting portion 24 of the upper portion, and the connecting portion 24 includes first and second protruding surfaces 24a and 24b having different degrees of protruding from the front and rear of the anchor portion 22, respectively. Have

The connecting pin 20 may be installed by selecting any one of the connecting pin insertion grooves 12a and 12b of the upper surface of the block 10 according to the inclination of the retaining wall, the connecting pin 20 to the front connection pin insertion groove. 12a, the retaining wall is constructed in a substantially vertical state while the connecting portion 24 of the upper end of the connecting pin 20 is in contact with the rear surface of the through hole 14 of the upper block 10. At this time, the connecting pin 20 By reversing and inserting), the retaining wall can be constructed without backing or with some backing.

In more detail, the connecting pin 20 has a different degree of first and second protruding surfaces 24a and 24b in front of and behind the connecting portion 24, for example, the first protruding surface 24a. Is protruded to a thickness of 2mm and the second protruding surface 24b is protruded to a thickness of 5mm, and the block 10 has a rear end of the connecting pin insertion groove 12a formed at the front side of the through-hole 14. If it is located 3mm ahead,

(Iii) If the first projecting surface 24a of the upper connecting portion 24 of the connecting pin 20 inserted into the connecting pin insertion groove 12a in the front is directed to the rear, the first projecting surface 24a is the upper portion. Since the upper and lower blocks are stacked to completely overlap by being in close contact with the back of the through-hole 14 of the block 10 stacked on the vertical retaining wall,

(Ii) If the second protruding surface 24b of the upper connecting portion 24 of the connecting pin 20 inserted into the front connecting pin insertion groove 12a is inserted to face backward, the second protruding surface 24b is the upper portion. By being in close contact with the back of the through-hole 14 of the block 10 to be stacked on the upper block is not stacked completely on the lower block is stacked in a state of retreating back to about 3mm to build a slightly inclined retaining wall.

On the other hand, if you want to increase the back bite in order to smooth the slope of the retaining wall more, instead of inserting the connecting pin 20 into the connecting pin insertion groove (12a) of the front, if you insert the connecting pin insertion groove (12b) of the rear Since the upper block is piled up by being retracted by a distance as much as the connecting pin 20 is retracted, it is possible to construct a retaining wall having a more gentle inclination angle, and the direction change and connection pin of the connecting pin 20 ( By combining the insertion positions of 20), it is possible to have a wide variety of stitches and inclinations.

In the present invention, the block 10 is preferably molded in a dry manner, and during molding, a pair of blocks are simultaneously molded together in the same mold, and then the middle part is split in half by a split mechanism so that the front surface of the block is natural stone. It can have a texture of.

The connecting pin 20 can be made to have a sufficient strength while saving the material by making the lower anchor portion 22 in the H-shaped cross-sectional structure as shown in the drawings, the anchor portion 22 as well as the upper connection portion It is preferable to produce the H-shaped cross-sectional structure as a whole up to (24).

In addition, the surfaces of the first and second protruding surfaces 24a and 24b are semicircular, so that the connecting pins can be completely attached to the grooves of the reinforcing end when the front end of the geogrid reinforcement is fitted to allow the normal installation of the reinforcing material. do.

A process of constructing the retaining wall using the block and the connection pin of the present invention configured as described above will be described.

First, a method and a process of constructing a straight vertical retaining wall using a block and a connecting pin of the present invention will be described with reference to FIGS. 4 and 5.

As shown in Figures 4 and 5, in the case of constructing a straight vertical retaining wall, the block 10 is placed on the horizontally chopped foundation and the connecting pin 20 is fitted on the block. The losing position is the connecting pin insertion groove 12a at the front, and the connecting pin 20 is inserted in such a state that the first protruding surface 24a of the upper coupling portion 24 faces backward. 24a is in close contact with the back of the through-hole 14 of the block 10 is placed on top of the upper block is built vertically without being pushed forward than the lower block.

On the other hand, the geogrid reinforcement 30 is sandwiched between the upper and lower blocks, the front end is connected to the block 10 by a connecting pin 20, the installation interval of the geogrid reinforcement 30 is the thickness of the block 10 In consideration of this, it is preferable to install one line in two stages as shown in the drawing, which can be adjusted differently depending on the type of reinforcement soil and the spacing before and after reinforcement soil.

6 and 7 illustrate a state in which the inclined retaining wall is constructed by the block according to the present invention, and when the inclined retaining wall is constructed, the connecting pin 20 is fitted on the block 10 mounted on the foundation. The insertion position 20 may be the front connection pin insertion groove 12a as shown in FIG. 6, or the rear connection pin insertion groove 12b as shown in FIG. 7.

As shown in FIG. 6, when the connecting pin 20 is inserted into the front connecting pin insertion groove 12a, the second protruding surface 24b of the top of the connecting pin 20 must face toward the rear to be piled up. The block is able to be minimally seized, and when the connecting pin 20 is inserted into the connecting pin insertion groove 12b at the rear, the front and rear directions of the connecting pin 20 can be arbitrarily selected.

On the other hand, in order to further back the upper block, that is, in order to maximize the back bite, the connecting pin 20 may be inserted so that the second projecting surface 24b faces the rear connecting pin insertion groove 12b. .

In the present invention, the rear bit of the block may have a constant inclination from the bottom of the retaining wall to the upper end by setting the block of each step (layer) constituting the retaining wall to a constant degree of backing, and if necessary, combining the vertical retaining wall and the inclined retaining wall Sloped retaining walls can also be constructed with a wide variety of retaining walls with varying degrees or intermittent backings at different stages.

8 is a plan view showing a vertical straight retaining wall constructed of a block according to the present invention, in which the engaging portion 24 of the connecting pin 20 fitted to the lower block 10 has a through hole 14 of the upper block 10. You can see that it is in close contact with the back.

The block according to the present invention can construct a convex or concave curved retaining wall as shown in Figs. 9 and 10 in addition to the straight retaining wall as shown in Figure 8, the radius of curvature is a connecting pin (20) ) Can be formed differently depending on where you put.

As described above, in the present invention, the connecting pin insertion grooves of the block are shifted back and forth, but are formed to be adjacent to each other so as to communicate with each other, and the connecting pins are rotated back and forth by forming the front and rear coupling parts of the upper end of the connecting pins inserted therein in different sizes. It is possible to construct a vertical retaining wall as well as an inclined retaining wall by selecting a connecting pin insertion groove, and an inclined retaining wall having a wide variety of inclinations (back stitches) by a combination of the connecting pin and the connecting pin insertion groove described above. It has a useful effect that the designer of the retaining wall according to the site conditions and can be constructed.

Claims (5)

delete Connecting pin insertion grooves are formed at both sides of the upper surface, and upper and lower blocks having through holes drilled outward of the connecting pin insertion grooves, and lower portions are inserted into the connecting pin insertion grooves of the lower block, and the upper part is exposed to the through holes of the upper block. The connecting pin to be inserted, and the front end is sandwiched between the upper and lower blocks and supported by the connecting pin, and the rear end is made of a geogrid reinforcing material which is installed in the reinforcement soil, and the connecting pin insertion grooves 12 at both sides of the block 10 are provided. In each of which is formed in a long rectangular shape toward the front and rear direction of the block 10, The connecting pin insertion grooves 12 are formed to be adjacent to each other so that the two rectangular insertion grooves 12a and 12b are shifted back and forth, respectively, and the sides of the rectangular insertion grooves 12a and 12b are partially in communication with each other. Block assembly for reinforcing soil retaining wall construction. The method according to claim 2, The connecting pin 20 has a lower anchor portion 22 that is fitted into the connecting pin insertion groove 12, and formed to extend above the anchor portion 22 is exposed to the upper portion of the lower block 10 and the upper block It consists of a connecting portion 24 of the upper portion fitted into the through hole 14 of the (10), the first and second protrusions having different degrees of projecting to the front and rear of the anchor portion 22, respectively, to the connecting portion 24 Block assembly for reinforcement earth retaining wall construction, characterized in that it has a surface (24a, 24b). The method according to claim 3, The connecting pin 20 is a block assembly for reinforcing soil retaining wall construction, characterized in that the H-shaped cross-section structure. The method according to claim 3, Reinforced earth retaining wall building block assembly, characterized in that the surface of the first and second protruding surface (24a, 24b) is formed in a semicircular shape.

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