KR20060121505A - Block for reinforced earth wall - Google Patents

Abstract

A block for constructing a retaining wall is provided to prevent the blocks from being slid according as the laminated projection and the combining hole are mutually interlocked. A block(B) for constructing a retaining wall is composed of a front surface(10) exposed to the outside; a rear surface contacted at the reinforcement earth body; laminated projections(32); an upper surface(30) formed with a combining hole(34) where the laminated projection is fitted and interlocked; a lower surface(40) contacted at the upper surface; and left and right surfaces(60) adjacent to left and right sides and contacted between the blocks. The laminated projections are each installed at both left and right sides and the rear center of the upper surface of the block. Pulling-up grooves(52,62) are installed in the block at the rear part of the left and right surfaces and extended from the upper surface to the lower surface. A U-shaped reinforcement insertion groove(36) is opened to the rear surface at the upper surface. A fracture groove(72) is formed at a wing unit(70) formed at both sides of the rear side of the block by the pulling-up grooves. The wing unit is detached along the fracture groove.

Description

Retaining Wall Building Block {Block for reinforced earth wall}

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

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

3 is a perspective view of the rear portion of the retaining wall showing a state of constructing a straight retaining wall with a block according to the present invention;

4 is a front perspective view of FIG. 3;

5 is a perspective view of the rear portion of the retaining wall, showing a state of constructing a curved retaining wall with a block according to the present invention;

6 is a plan view of FIG. 5;

FIG. 7 is a front perspective view of FIG. 5;

8 is a front perspective view of the completed retaining wall,

9 is a perspective view showing a state of lifting a plurality of blocks at the same time using a lifting mechanism,

10 is a perspective view of a state of constructing a lifted block;

11 is a plan view showing the interlocking state between the upper and lower blocks when the straight retaining wall is constructed;

FIG. 12 is a plan view illustrating an interlocking state between upper and lower blocks when a curved retaining wall is constructed.

* Explanation of symbols for main parts of the drawings

10: front 12: chamfered surface

20: Back 30: Top

32: laminated protrusions 34: coupling holes

36: reinforcement insert groove 40: lower surface

50: left side 60: right side

52,62: lifting groove 70: wing

72: Breaking groove B, B1, B2, B3, B4: Block

C: Concrete Foundation D: Reinforced Soil

E: Fiber reinforcement material F: Drainage filter

h: step J: lifting jig

R: radius of curvature

The present invention relates to a retaining wall building block, and in particular, it is possible to build a curved retaining wall having a straight line as well as an arbitrary curvature radius, and the inter-block between the blocks that are constructed by the upper and lower stacking methods when building the straight and curved retaining walls. Locking is made securely prevents the block of the phenomenon, and can be anchored directly to the block of the end of the strip-shaped fiber reinforcement without a separate anchor, and relates to a block that can be lifted and built quickly and conveniently using the lifting equipment.

Generally, retaining walls constructed with blocks are classified into gravity retaining walls without reinforcement and reinforcement earth retaining walls using reinforcement. These retaining walls have different shapes and sizes depending on the construction method. Since the molds and equipment had to be manufactured differently, it has been a burden on the required cost, and in the case of gravity retaining wall, the block itself is too big and heavy, so a lot of manpower and equipment had to be put in the process of transportation and construction. In this case, various subsidiary materials such as anchors and connecting pins for connection between the reinforcement embedded in the block and the reinforcement soil and the coupling between the upper and lower blocks are consumed in large quantities, resulting in a burden of construction cost and a complicated construction process.

The present invention has been made in order to solve the above-mentioned conventional problems, the object of the present invention is the construction of a curved retaining wall made of a straight line as well as an arbitrary curvature radius, it is possible to build a straight and curved retaining wall image, Even if you do not use separate connecting pins between the blocks that are built by stacking method, interlocking is surely prevented, so the block phenomenon of the block can be prevented, and the tip of the strip-shaped fiber reinforcement can be anchored directly to the block without a separate anchor, and lifting equipment It is to provide a block for constructing the retaining wall by using a quick and convenient transportation and lifting.

In order to achieve the above object, the present invention provides a front surface exposed to the outside and a back contact with the side of the reinforcement soil, an upper surface formed with a lamination protrusion and a coupling hole interlocked by the lamination projection, and a lower surface contacting the upper surface and adjacent left and right blocks. In the retaining wall construction block having left and right sides, the lamination protrusions are provided on both the left and right sides and the rear center portion of the upper surface of the block, respectively. It is formed to, the upper surface is formed with a U-shaped reinforcement insertion groove which is open to the rear side, and the wing portion formed on both sides of the rear portion of the block by the lifting groove is formed with a break groove is removed if necessary along the break groove Provided are a block for building a retaining wall that is capable of constructing a curved retaining wall.

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

1 and 2 illustrate a retaining wall construction block according to a preferred embodiment of the present invention. The retaining wall of the present invention has a front surface 10 exposed to the outside and a back surface 20 which contacts the reinforcement soil side, and a stacking protrusion 32. ) And the upper surface 30 having the coupling hole 34 interlocked with the laminated protrusions 32 interposed therebetween, the lower surface 40 contacting the upper surface 30 and the left and right side surfaces 50 which are in contact with adjacent blocks. In the retaining wall construction block having a 60, the laminated protrusions 32 are provided at the left, right, and rear center portions of the upper surface 30 of the block 30, respectively, and at the rear of the left and right side surfaces 50, 60, respectively. The lifting grooves 52 and 62 extend from the upper surface 30 to the lower surface 40 to the inner side of the block, and the upper surface 30 is formed with a U-shaped reinforcement insertion groove 36 open to the rear surface 20 side. In the wing portion 70 formed on both sides of the rear part of the block by the lifting grooves 52 and 62, a fracture groove 72 is formed so that this fracture groove ( Along the 72, the wing portion 70 can be removed to build a curved retaining wall.

In the present invention, the left and right side surfaces 50 and 60 are formed to be inclined rearward inwardly as shown in FIG. 2, and the fracture groove 72 extends along the inclined left and right side surfaces 50 and 60. It is intended to be able to build both straight and curved retaining walls using only one type of block.

That is, the block according to the present invention can be arranged in a straight line as shown in Figure 11 as a whole as a rectangular view as shown in the plan view of FIG. 2, the wing portion 70 of the block rear portion (one side or both sides) If all) are removed, the front part of the block is wide and the rear part has a relatively narrow trapezoidal shape. If adjacent blocks closely contact the left and right sides 50 and 60, an arbitrary curvature radius is shown in FIG. It can be arrange | positioned in (R).

The fracture groove 72 is formed on all the remaining surfaces except for the lower surface 40 of the wing portion 70 so that the wing portion 70 can be cleanly removed by hitting it with a chisel and a hammer in the field. do.

The wing portion 70 has a step (h) lower than the upper surface 30 (about 6 ~ 10mm) is formed, which is the water of the reinforcement soil of the retaining wall built into the block through the step (h) portion It is intended to be drained to the front, and the rear of the block is provided with a drain filter (F) made of a fiber non-woven fabric, etc. to prevent the soil of the reinforcement soil to flow out when draining (see Fig. 5).

In addition, the step (h) part is damaged because of the shear force received after the retaining wall construction because it serves as a buffer to prevent the wing portion of the block (B) that is not structurally strong directly contact with the block to be built up and down To prevent it.

In the present invention, the drain filter (F) is the block (B) is built in a straight line or a curved form, whether the left and right adjacent blocks (B) are in close contact with each other, so that the drain filter (F) is partially pushed forward The phenomenon does not occur, and thus, even if the reinforcement soil D is immediately installed without embedding expensive aggregate such as a separate crushed stone in a certain width behind the drain filter F, the reinforcement soil D through this drain filter F Water generated at the) side can be easily drained.

In addition, the front surface 10 is formed in the outer chamfered surface 12 so that the right corner (edge) can be easily damaged by external force during transportation and construction of the retaining wall and even after construction. In addition, it is possible to improve the aesthetics of the retaining wall by allowing the front part of the constructed retaining wall to feel as if a line of eye is formed between each block (see FIG. 8).

In addition, the front surface 10 preferably has a natural stone texture as shown in the figure by integrally molding the two blocks in a state in which the front surfaces 10 are in contact with each other in one mold and then splitting the abutted portions.

The rear part of the stacking protrusion 32 formed at the rear center portion of the upper surface 30 is formed with a step lower than the upper surface 30 so that a lever or the like can be inserted into the retaining wall when the retaining wall is constructed. It can be moved so that it can

In addition, the stacking protrusions 32 formed on both the left and right sides of the upper surface 30 are formed to be rear-aligned with the rear inner surface of the coupling hole 34, so that the block B1 is located at a relatively lower portion when the straight retaining wall is constructed. The inner side of the rear end of the coupling hole 34 of the upper block B2 is inserted into the lamination protrusion 32 of the lower block B1 while the lamination protrusion 32 of the upper side is fitted into the engaging hole 34 of the block B2 located above. The upper block B2 is prevented from being pushed forward even if the earth is subjected to earth pressure by being in close contact and interlocking. (See Figure 11)

In addition, even when the curved retaining wall is constructed, as shown in FIG. The inner surface of the rear end of the coupling hole 34 is closely attached to the stacking protrusion 32 of the lower block B1, and interlocked. This is because it is designed to accommodate the laminated protrusions 32 in all.

The process of constructing the retaining wall using the block of the present invention configured as described above will be described.

First, the construction state of the straight retaining wall is shown in Figs. 3 and 4, the first block (B1) is built in a straight line on the concrete foundation (C), and the second block (B2) in a stacking manner on it again. Build a.

Thereafter, reinforcing soil (D) is laid at the rear of the constructed blocks (B1, B2) to be firmly compacted, and a band-shaped fiber reinforcement (E) is installed on the reinforcement soil (D). The front end portion is inserted into the reinforcement insertion groove 36 formed in the upper surface 30 of the block B2 in the state folded in the longitudinal direction so as to be half the width, and the fiber reinforcement E is continuous between the adjacent blocks B2. Connect in a zigzag fashion.

When the connection of the fiber reinforcement (E) is completed, the third and fourth blocks (B3, B4) to be built on top of the secondly constructed block (B2) in a stacking manner, the construction of such blocks and reinforcement of the earth The connection of compaction and fiber reinforcement may be repeated until the height of the retaining wall to be constructed is reached.

The process of constructing the straight retaining wall using the block of the present invention is not only very simple as described above, but other subsidiary materials other than the block and the reinforcing material are not used, thereby significantly reducing the construction cost as well as material cost.

5 to 7 illustrate a state of constructing a curved retaining wall with a block according to the present invention. The process of constructing a curved retaining wall is also the same as that of the above-mentioned straight retaining wall, but the radius of curvature of the retaining wall to be constructed What is necessary is just to construct after removing the blade | wing part 70 of the block B beforehand according to (R).

9 and 10 illustrate a state in which a block is constructed by lifting several blocks at the same time using a lifting mechanism, and the blocks according to the present invention have lifting grooves 52 and 62 on left and right sides 50 and 60. ) Is formed so that the lifting groove can lift several blocks at the same time using the lifting jig (J; Jig) as shown in FIG. 9 and move it to the required position as shown in FIG. The lifting grooves 52 and 62 can insert or pull the lifting jig J without interfering with the side block, so that the construction of the block can be easily performed using equipment without depending on manpower.

As described above, in the present invention, when constructing a straight retaining wall, the present invention may be constructed without removing the wing portions formed on both sides of the rear part of the block, and when constructing a curved retaining wall, the adjacent blocks may be formed by removing the wing portions. It can be angled so that it can be constructed with curved retaining walls with the required radius of curvature, and it can be stacked without the need for a separate connecting pin between blocks built up and down when building straight and curved retaining walls. The interlocking of the projections and the coupling holes does not cause block phenomena, and by inserting the front end of the reinforcement directly into the reinforcement insertion groove, only the block and the reinforcement are used when constructing the retaining wall, thereby minimizing the need for subsidiary materials. As the lifting groove is formed, several lifting blocks can be used at once by using the lifting equipment. As it can be lifted and placed on the retaining wall under construction, it is possible to reduce the physical fatigue of workers during transportation and construction, but it is also possible to build by equipment and to shorten the construction period.

Claims (6)

An upper surface 30 having a front surface 10 exposed to the outside and a rear surface 20 which is in contact with the reinforcement soil side, a stacking protrusion 32 and a coupling hole 34 into which the stacking protrusions 32 are interlocked to form an upper surface 30 and the upper surface ( In the retaining wall construction block having a lower surface 40 abutting against 30 and left and right side surfaces 50 and 60 contacting each other between adjacent blocks, The stacking protrusions 32 are provided at left and right sides and rear center portions of the upper surface 30 of the block, respectively, and lifting grooves 52 and 62 are formed at the rear side of the left and right side surfaces 50 and 60, respectively. It extends from the upper surface 30 to the lower surface 40, the upper surface 30 is formed with a U-shaped reinforcement insertion groove 36 opened to the rear surface 20 side, by the lifting grooves (52, 62) In the wing portion 70 formed on both sides of the rear part of the block, a fracture groove 72 is formed, and if necessary, the wing portion 70 can be peeled off along the fracture groove 72 to form a curved retaining wall. Retaining wall construction block. The method according to claim 1, The left and right side surfaces 50 and 60 are formed to be inclined rearward and the fracture groove 72 is formed on an extension line of the inclined left and right side surfaces 50 and 60. block. The method according to claim 1 or 2, Retaining wall construction block, characterized in that the front surface (10) is formed as a chamfered surface 12 the outer periphery. The method according to claim 1 or 2, Retaining wall building block, characterized in that the wing portion 70 is formed with a step lower than the upper surface (30). The method according to claim 1 or 2, Retaining wall building block, characterized in that the rear portion of the laminated projection 32 formed in the rear center portion of the upper surface 30 is formed with a step lower than the upper surface 30 to insert a lever or the like when retaining wall construction. The method according to claim 1 or 2, Retaining wall building block, characterized in that the fracture groove 72 is formed on all the remaining surfaces except the lower surface 40 of the wing portion (70).

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