KR200425520Y1 - Coupling device for block type revetment - Google Patents

Abstract

The present invention is inserted between the upper block and the lower block installed in the retaining soil retaining wall block to prevent the collapse of the block, while being inserted into the end of the geogrid installed to be embedded in the soil to prevent the earth and sand collapse As the connection structure for the retaining soil retaining wall, its characteristic configuration is sequentially stacked on the surface of the retaining wall 40 to prevent the soil (41) inside the retaining wall to collapse, and the fixing groove 11 in the width direction on the bottom surface And a reinforcement earth block 10 having a fitting groove 12 formed on the upper surface thereof, and being embedded in the earth and sand 41 inside the retaining wall, and a front end portion of the reinforcement material 30 inserted between the reinforcement earth blocks 10 and The high end is inserted into the front end of the reinforcing material 30 inserted between the reinforcement earth block 10, the lower end is fitted into the fitting groove 12 formed in the lower reinforcement earth block 10, the upper end is formed in the upper reinforcement earth block 10 It is to include a connecting means 20 to be fitted in the groove (11).

Reinforced soil, retaining wall, block, reinforcement, connecting device

Description

Coupling device for block type revetment

1 is an exploded perspective view showing a connection structure for a reinforcement earth retaining wall according to the present invention.

Figure 2 is a bonded state cross-sectional view showing a connection structure for the reinforced soil retaining wall according to the present invention.

Figure 3 is an enlarged cross-sectional view showing the main portion showing a connection structure for the reinforced soil retaining wall according to the present invention.

4 to 6 is a cross-sectional view showing another embodiment of the connection structure for the reinforced soil retaining wall according to the present invention.

Figure 7 is a perspective view showing a state in which the connection structure for the reinforced soil retaining wall according to the present invention is installed on the retaining wall.

Figure 8 is a cross-sectional view showing a state in which the connection structure for the reinforced soil retaining wall according to the present invention is installed on the retaining wall.

※ Explanation of main parts of drawing

10: reinforcement soil block 11: fixing groove

12: fitting groove 20: connecting means

21: fixed tube 22: female thread

23: cutting groove 24: fastening bolt

25: male thread 26: tool coupling groove

30: reinforcement 40: retaining wall

41: Tosa

The present invention relates to a connection structure for a block-type reinforced earth retaining wall, and more particularly, a geogrid installed between the upper block and the lower block installed in the reinforced earth retaining wall to prevent the block from collapsing and to be embedded in the soil. It relates to a block type reinforced soil retaining wall connection structure that can be prevented from being collapsed by being inserted at the end of the.

In general, the retaining wall refers to a wall structure that prevents soil from collapsing by resisting earth pressure. It is often used for efficient use of land in mountainous lands and high land prices, and is made of concrete or steel blocks. It was common to build retaining walls.

However, since the concrete retaining wall is installed close to the surface of the soil to be reinforced, it is vulnerable to cracking from the inside, and there are problems such as height limitation and excessive treatment cost, and it is difficult to shorten the construction and construction period in winter. Stability of retaining walls due to collapse of backfill soil during sudden accidents such as heavy rains and blasts was weak.

On the other hand, in the case of steel structure, there is an effect on the shear resistance from the soil, but easily corroded.

As an alternative to solve this problem, the construction of geosynthetics reinforcement walls, especially geogrid reinforcement, which makes geosynthetics reinforcement, which enables excellent economy, free shape of the front wall, shortening construction period, and earthquake-resistant structure, is increased. It was.

Reinforcement soil retaining wall is designed to stabilize soil by inserting reinforcement material with high tensile strength and good friction force horizontally into the backfilled soil of sandy soil to restrain transverse displacement of soil. Reinforcement, backfilled sandy soil (reinforced soil) and front protective material It consists of (blocks).

Since the block type reinforced retaining wall is advantageous in securing the land in the construction of roads, railways and complexes, its use is being expanded to replace concrete retaining walls, and a plurality of blocks are assembled and stacked together with the geotextile reinforcement to build the retaining wall.

In the conventional reinforcement retaining wall, when the block and the reinforcement are connected, the reinforcement is directly inserted between the block and the block to match the unevenness of the block, and the reinforcement is inserted by the connector, the clip and the connection pin. It was.

First, in the method of inserting the reinforcement directly between the uneven block or the upper and lower blocks with the jaw at the front or the rear, the reinforcement is insufficient because the connection force between the reinforcement and the block wall is insufficient and the construction is made in close contact with the uneven or jaw of the block. Severe warpage can result in cracks or breaks in the stiffeners.

Secondly, the connection method by the connector, the clip and the connection pin is more advanced than the direct insertion method between the blocks. It is still expected to leave the reinforcement.

As such, the conventional reinforcement earth retaining wall has a problem that damage or detachment of the reinforcement may occur because the coupling between the block and the reinforcement is not firm, and there is a risk of breakage or collapse of the block.

That is, in the conventional block-type reinforcement earth retaining wall there is a problem that the combination of the block and the reinforcement is not firm, causing the risk of damage or separation of the reinforcement and breakage or collapse of the reinforcement.

The present invention has been devised to solve this problem, by associating the upper block and the lower block, as well as by strengthening the coupling of the reinforcement and the block installed in the soil to prevent the loss of the reinforcement by the upper and lower blocks The present invention provides a connection structure for a block type reinforced earth retaining wall which does not collapse the retaining wall.

Block type reinforced earth retaining wall connection structure of the present invention for achieving the above object is sequentially stacked on the surface of the retaining wall to prevent the earth and sand collapse inside the retaining wall, the bottom surface is formed with a fixing groove in the width direction, the upper surface is fitted A grooved reinforcement soil block, and is installed to be embedded in the soil inside the retaining wall, the front end portion is inserted between the reinforcement soil block, and the reinforcement inserted between the reinforcement soil block and the lower end is inserted into the lower reinforcement soil block Fitted into the formed groove and the upper end is to include a connecting means fitted to the fixing groove formed in the upper reinforcement earth block.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a connection structure for the reinforcement earth retaining wall according to the present invention, Figure 2 is a cross-sectional view showing a connection structure for the reinforcement earth retaining wall according to the present invention, Figure 3 is a connection structure for the reinforcement earth retaining wall according to the present invention 4 to 6 is a cross-sectional view showing another embodiment of the connection structure for the reinforcement earth retaining wall according to the present invention, Figure 7 is a perspective view showing a state in which the connection structure for the reinforcement earth retaining wall according to the present invention is installed on the retaining wall 8 is a cross-sectional view showing a state in which the connection structure for the reinforced soil retaining wall according to the present invention is installed on the retaining wall.

As described herein, the block type reinforced soil retaining wall connection structure according to the present invention includes a reinforcement soil block 10 that forms a side surface of the retaining wall, a reinforcement 30 embedded in the earth and sand 41 inside the retaining wall 40, and the reinforcement soil. The block 10 and the reinforcing material 30 is largely divided into a connecting means 20.

The reinforcement soil block 10 is sequentially stacked on the surface of the retaining wall 40 so as to prevent the earth and sand 41 in the retaining wall from collapsing, and the fixing groove 11 is formed in the width direction at the bottom thereof, Although the fitting groove 12 is formed, the fitting groove 12 may be formed in at least two or more, and may form a single row or two or more rows.

And the reinforcing material 30 is embedded in the horizontal direction inside the soil (41), as a kind of geosynthetics (Geosynthetics) that enables excellent economic efficiency, free shape of the front wall, construction period shortening, earthquake resistant structure It is preferable to use a geogrid reinforcing material 30, and the reinforcing material 30 is formed with a myriad of holes (31).

On the other hand, the connecting means 20 is fitted to the front end of the reinforcing material 30 inserted between the reinforcement block 10, the lower end is fitted into the fitting groove 12 formed in the lower reinforcement earth block 10, the upper end It is fitted into the fixing groove 11 formed in the upper reinforcement soil block (10).

The connecting means 20 is provided with a fixed tube 21, the inside of the fixed tube 21 is formed with a female screw portion 22, the lower portion is formed with a cutting groove 23, the cutting groove 23 It is preferable to form at least 2 or more pieces at equal intervals.

Meanwhile, a fastening bolt 24 fitted to the fixing tube 21 is provided, and a male thread portion 25 is formed on an outer circumferential surface of the fastening bolt 24, and a tool coupling groove 26 is formed on an upper surface thereof. It is.

The male screw portion 25 and the female screw portion 22 may be formed to have the same diameter, but as shown in FIG. 4 so that the lower end of the fixing tube 21 may expand when the fastening bolt 24 is fastened. The outer diameter of the male screw portion 25 formed in the (24) is formed in the lower portion and the upper portion is gradually smaller, or as shown in Figure 5 the outer diameter of the female screw portion 22 formed in the fixed tube 21 is formed in the lower portion As shown in FIG. 6, the upper portion may be formed larger and larger, or the inner diameter of the female threaded portion 22 formed in the fixed tube 21 may be formed equally from the upper end to the center portion, and may be formed smaller from the center portion to the lower portion.

Referring to the present invention configured as described in detail as follows.

First, when constructing the reinforcement soil retaining wall to install a plurality of reinforcement soil block 10 in the longitudinal direction to form a lower portion of the reinforcement soil retaining wall 40 in the fitting groove 12 formed on the upper surface of the reinforcement soil block 10 Inserting the fixing tube 21, but is inserted into any one of the rows of the fitting groove 12 formed in a plurality of rows on the upper surface of the reinforcement earth block 10, wherein the fixing groove 21 of the fitting groove 12 The location is determined by the slope of the reinforcement retaining wall.

On the other hand, when the tool bolt (not shown) is inserted into the tool coupling groove 26 formed on the upper surface of the fastening bolt 24, screwing the fastening bolt 24 into the inside of the fixed tube 21, the lower end of the fixed tube 21 Since the incision groove 23 is formed in the lower outer peripheral surface of the fixed tube 21 is in intimate contact with the inner surface of the fitting groove 12.

When the fastening bolt 24 is fastened as described above, as shown in FIG. 4, the outer diameter of the male threaded portion 25 formed in the fastening bolt 24 is formed to have a lower portion and a smaller upper portion. As shown in FIG. 6, the outer diameter of the female screw portion 22 formed in the fixed tube 21 is formed to be smaller and the upper portion thereof becomes larger, and as shown in FIG. 6, the inner diameter of the female screw portion 22 is equally formed from the upper end to the center portion. And when formed from the central portion toward the lower toward the smaller, when the fastening bolts 24 are coupled to the lower portion of the fixing tube 21 is more wide open so that the contact force to the inner surface of the fitting groove 12.

As described above, the coupling means 20 is coupled to the upper surface of the reinforcement soil block 10, and then another reinforcement soil block 10 of the connecting means 20 is laminated. In this case, the reinforcement soil block 10 is formed on the bottom surface of the reinforcement soil block 10. As fitting the fixing tube 21 of the connecting means 20 in the fixing groove 11, it is to fix the reinforcement soil block (10).

On the other hand, after constructing the reinforcement soil block 10 as described above is to fill the earth and sand, the reinforcement 30 is installed on the upper surface after filling the soil, but the front end portion of the reinforcement 30 is reinforced earth block 10 When installed so as to be inserted between the, the through-hole 31 formed in the reinforcing material 30 is fitted into the fixing tube 21 of the connecting means 20, so that the reinforcement earth block 10 and the reinforcing material 30 is coupled will be.

Although the reinforcing material 30 may be installed between the reinforcing soil blocks 10, respectively, the reinforcing material 30 may be selectively installed according to the inclination and the height of the retaining wall 40.

That is, according to the present invention, as well as interconnecting the upper reinforcement soil block 10 and the lower reinforcement soil block 10, the front end portion of the reinforcement 30 embedded in the earth and sand 41 is inserted and fixed between the reinforcement soil block 10. Since it is possible to improve the strength of the retaining wall.

As described above, the present invention improves the bonding force of the reinforcement soil block by interconnecting the reinforcement soil blocks are sequentially stacked, as well as the distal end of the geosynthetic reinforcement because the front end portion of the reinforcement embedded in the soil is inserted and connected between the reinforcement soil block It is possible to prevent the collapse or deformation of the retaining wall to prevent, thereby having a unique effect of building a safe retaining wall.

In addition, the present invention has a peculiar effect that the connection means for connecting the reinforcement earth block screw can be quickly performed installation and separation work.

Claims (6)

Reinforced soil block is sequentially stacked on the surface of the retaining wall 40 to prevent the earth and sand (41) inside the retaining wall collapse, the fixing groove 11 in the width direction on the bottom surface, the fitting groove 12 is formed on the upper surface 10 and a reinforcing member 30 installed in the retaining wall in the retaining wall, the tip portion of which is inserted between the reinforcing soil blocks 10 and a reinforcing member inserted between the reinforcing soil blocks 10 ( 30 is fitted to the front end of the lower end is fitted into the fitting groove 12 formed in the lower reinforcement earth block 10 and the upper end includes a connecting means 20 is fitted into the fixing groove 11 formed in the upper reinforcement earth block 10. Block reinforcement earth retaining wall connection structure characterized in that. According to claim 1, The connecting means 20 is a female threaded portion 22 is formed therein, the lower end portion of the fixing tube 21 is formed in the longitudinal direction of the cutting groove 23, and screwed to the fixing tube 21 A male thread portion 25 is formed on the outer circumferential surface thereof, and a block type reinforced soil retaining wall connection structure, characterized in that the upper surface is formed of a fastening bolt 24 having a tool coupling groove 26 formed thereon. The method of claim 2, wherein the cut groove 23 formed in the lower end of the fixing tube 21, at least two or more plural pieces are formed at equal intervals for the block type reinforced soil retaining wall connection structure. The method of claim 2, wherein the outer diameter of the male screw portion (25) formed in the fastening bolt 24, the lower portion is larger and the upper portion is gradually smaller to form a reinforced reinforced soil retaining wall connection structure. The method of claim 2, wherein the inner diameter of the female screw portion 22 formed in the fixed tube 21, the lower portion is smaller and the upper portion is gradually larger, the connection structure for the retaining wall retaining wall connection structure. The method of claim 2, wherein the internal diameter of the female threaded portion 22 formed in the fixing tube 21 is formed equally from the upper end to the center portion and the block type reinforced earth retaining wall connection structure, characterized in that formed smaller and smaller toward the lower portion.

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