KR100592721B1 - Reinforce breast wall of block-type for road - Google Patents

Abstract

Blocked reinforced earth retaining walls are provided.

The retaining wall provided includes a foundation constructed on the ground after completion of the excavation work, and concrete blocks stacked in multiple stages on the foundation, and a geogrid, which is a reinforcement, is laid in multiple layers between each concrete block during backfilling of the concrete blocks. In the block type reinforced earth retaining wall,

The foundation includes a foundation geogrid embedded in the ground, a soil compaction surface formed on an upper surface of the foundation geogrid, a rubble layer formed on an upper surface of the soil compaction surface, and a concrete foundation plate constructed on an upper portion of the rubble layer. Wherein the foundation geogrid is provided with a protrusion corresponding to the concrete foundation plate, and the concrete foundation plate is installed on at least one support plate and an inclined plate installed at the front of the support plates and the bent portion of the support plates. It consists of joint plates.

Reinforced soil retaining wall, foundation, geogrid, support plate, joint plate

Description

Block reinforcement retaining wall of road {REINFORCE BREAST WALL OF BLOCK-TYPE FOR ROAD}

1 is a side cross-sectional view illustrating a typical construction example of a conventional block-type reinforced soil retaining wall.

Figure 2 is an exploded perspective view for explaining the foundation in the block-type reinforced soil retaining wall according to the present invention.

3 is a perspective view for explaining the foundation in the block-type reinforced soil retaining wall according to the present invention.

Figure 4 is a side cross-sectional view for explaining the construction state of the block type reinforced soil retaining wall according to the present invention.

5 is a perspective view for explaining another embodiment of a concrete block in a block type reinforced soil retaining wall according to the present invention.

Figure 6 is a side cross-sectional view for explaining the construction state of the concrete block according to another embodiment in the block type reinforced soil retaining wall according to the present invention.

<Explanation of symbols for major parts of drawing>

1: Reinforced soil retaining wall 2: Foundation

3, 3 ': concrete block 4: geogrid

21: Basic Geogrid 22: Tosa Compact

23: rubble layer 24: concrete foundation plate

31: planting groove 32: front drain hole

241: support plate 241a: mounting groove

241b: Drainage hole 241c, 243a: Tightening groove

242: inclined plate 242a: inclined drainage hole

243: joint plate 244,244 ': space keeping block

244a: insertion protrusion 245: drainage connector

246: fastener 247, 247 ': drainage space

The present invention relates to a block type reinforced retaining wall of a road.

In general, the reinforcement earth retaining wall is classified into a block type and a panel type, and the block-type reinforcement earth retaining wall is mostly used for the front surface using a small mortar block and geogrid as a reinforcement material. Such a block-type reinforced earth retaining wall has a merit that the construction can be easily bent at a minimum rotation radius of about 1 m and aesthetics by using a small block.

1 is a side cross-sectional view illustrating a typical construction example of a conventional block-type reinforced soil retaining wall.

Referring to Figure 1, the existing block-type reinforcement soil retaining wall 100 includes a foundation 200 which is constructed on the ground after the excavation work, and a concrete block 300 stacked in multiple stages on the foundation 200, such concrete Geogrid 400, which is a reinforcement, is installed in multiple layers between each concrete block 300 during backfilling of the block 300. At this time, the foundation 200 is constructed by using rubble or by pouring concrete. In addition, the concrete block 300 is stacked in a vertical direction or inclined in a staircase shape.

However, the existing block-type reinforcement soil retaining wall 100 requires rapid treatment in draining groundwater and rainwater generated in the constructed area, and the structure for drainage treatment is important for preventing and maintaining conduction of the retaining wall. It can be said.

Therefore, the present invention was devised to solve the general problems of the existing block-type reinforced soil retaining wall,

The technical problem to be achieved by the present invention is to provide a block-type reinforcement soil retaining wall of the road to continuously maintain a solid construction state by improving the structure of the foundation on which the concrete blocks are laminated as well as the rapid treatment of groundwater and rainwater.

As a specific means of the present invention for solving the above technical problem;

A block-type reinforcement soil comprising a foundation to be constructed on the ground after the excavation work, and concrete blocks stacked in multiple stages on the foundation, and geogrid, which is a reinforcing material, is laid between the concrete blocks during backfilling of the concrete blocks. On the retaining wall,

The foundation includes a foundation geogrid embedded in the ground, a soil compaction surface formed on an upper surface of the foundation geogrid, a rubble layer formed on an upper surface of the soil compaction surface, and a concrete foundation plate constructed on an upper portion of the rubble layer. It has a block-type reinforcement soil retaining wall comprising a.

In a preferred embodiment, the foundation geogrid may form a protrusion corresponding to the concrete foundation plate.

In a preferred embodiment, the concrete base plate is composed of at least one support plate, the inclined plate is installed on the front of the support plates, and the joint plate is installed in the bent portion of the support plates, each support plate is the concrete A pair of installation grooves are provided on the upper surface on which the blocks are stacked to install a space maintaining block having insertion projections, and a front surface of the block is formed with a drain hole communicating with the installation grooves, and the inclined plate has a drain connector. As a result, the inclined drainage hole connected to the drainage hole may be drilled.

More preferably, the length between the interval maintaining block and the interval maintaining block of the support plate may be configured to be at least longer than the width of the concrete block so that groundwater and rainwater can be drained through the drainage hole.

More preferably, at least one fastening groove for connecting the fasteners may be provided at both side surfaces of the support plate and the joint plate.

As a preferred embodiment, the concrete block is installed in a stepped manner laminated on the upper surface of the foundation, the planting groove is provided on the upper surface of each concrete block, the planting groove can be perforated the front drain hole.

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

2 is an exploded perspective view for explaining the foundation in the block-type reinforced soil retaining wall according to the present invention, Figure 3 is a combined perspective view for explaining the foundation in the block-type reinforced soil retaining wall according to the present invention.

2 and 3, the block type reinforced earth retaining wall 1 of the present invention includes a foundation (2) constructed on the ground and a concrete block (3) and geogrid (4) laminated on the foundation (2) The foundation 2 further includes a foundation geogrid 21, a soil compaction surface 22, a rubble layer 23, and a concrete foundation plate 24.

Here, the block-type reinforcement soil retaining wall 1 of the present invention is constructed as an inclined retaining wall or a residential land composition of a road, a stepped retaining wall of a park cemetery, and a retaining wall for a waterway. Such a block-type reinforced soil retaining wall (1) constructs a foundation (2) on the ground after the excavation work, and the concrete block (3) is laminated in multiple stages on the foundation (2), but the backfill of the concrete block (3) Geogrid 4 is installed between each concrete block (4) during the fill work (see Figure 4).

At this time, in the present invention, in constructing the foundation 2 of the block-type reinforced soil retaining wall 1, the foundation geogrid 21, the soil compaction surface 22, the rubble layer 23 and the concrete base plate 24 to include Construct

The basic geogrid 21 is embedded in the ground. As the basic geogrid 21 is inserted into the ground as geosynthetic fiber, like the conventional geogrid, it is compacted to improve shear strength by interaction with soil, thereby eliminating or minimizing soil pressure due to soil weight or external force to secure stability. Perform the function. At this time, in the base geogrid 21, the portion corresponding to the concrete base plate 24 preferably forms an upward protrusion 211.

The rubble layer 23 is formed on an upper surface of the soil compaction surface 22 constructed on the upper surface of the foundation geogrid 21. Such a soil compaction surface 22 is constructed through the compaction operation, the rubble layer 23 is hard and there is no fear of deterioration to apply a cobblestone or pebble, a large / small particle size of 5 ~ 15㎝ is suitable It is preferable to apply what is mixed by particle size.

The concrete base plate 24 is constructed on top of the rubble layer 23. The concrete base plate 24 has a plurality of support plates 241 composed of rectangular plate-like bodies, inclined plates 242 installed on the front surfaces of the support plates 241, and the support plates 241 are bent portions. Consists of a joint plate 243 for installation in, each plate 241, 242, 243 is made of concrete.

In this case, each of the support plates 241 is provided with a set of installation grooves 241a on the upper surface of the concrete block 3 is stacked, through each of the installation grooves 241a, the interval maintaining block in the form of a square piece. (244,244 ') are installed. The interval maintaining blocks 244 and 244 'protrude to the upper surface of the support plate 241 in a state where the insertion protrusion 244a protruding from the lower surface is fixed to the installation groove 241a. The length between the retaining block 244 and the interval maintaining block 244 'is preferably configured to be at least longer than the width of the concrete block (3). In addition, a drainage hole 241b communicating with the installation grooves 241a, that is, a drainage hole 241b communicating with the bottom surface of the installation groove 241a is drilled on the front surface of each of the support plates 241.

In addition, the inclined plate 242 is composed of a rectangular cross-section of the inclined plate 242, the inclined drain hole 242a connected to the drain hole 241b by the drain connector 245 is perforated. Such drainage connector 245 has a cylindrical body so that drainage is possible, and has a structure in which a stopper protrudes from the outer circumferential surface thereof.

On the other hand, the joint plate 243 is used when constructing the support plate 241 in the bend. The joint plate 243 is configured such that one side thereof is straight so that the support plate 241 can be connected to the shape of the bent portion, and the other side thereof is configured as an inclined surface, and the angle of the inclined surface is necessary. Can be variable.

At this time, connecting the fastener 246 having a structure in which a stopper protrudes on the outer circumference of the fastener 246, for example, a round bar, on both sides of each of the support plates 241 and the joint plate 243. Fastening grooves 241c and 243a are formed at predetermined intervals.

Thus, the construction of the block-type reinforced soil retaining wall according to the present invention having the configuration as described above will be described with respect to the interaction between each component.

Figure 4 is a side cross-sectional view for explaining the construction state of the block type reinforced soil retaining wall according to the present invention.

Referring to FIG. 4, first, the foundation geogrid 21 is installed on the ground to be constructed with retaining walls, and then, the soil pavement surface 22 is formed on the upper surface thereof, and the rubble layer 23 is formed on the soil pavement surface 22. After construction, the concrete base plate 24 is installed. At this time, the concrete foundation plate 24 is installed at a position corresponding to the protrusion 211 of the foundation geogrid 21, each supporting plate 241 is connected by the fastener 246, in the case of the bent joint plate 243 is connected to the side of the support plate 241, and the inclined plate 242 is connected to the front surface of each support plate 241 by the drain connector 245. After that, the interval maintaining blocks 244 and 244 'are inserted into and fixed to the installation grooves 241a of the respective support plates 241, and the concrete blocks 3 are stacked in a multi-stage manner in the spaces between the gap maintenance blocks 244 and 244'. In this case, the construction is completed by laying the geogrid (4) during the backfill fill work of the concrete block (3). Here, it is preferable that the concrete blocks 3 stacked in the spaces between the space maintaining blocks 244 and 244 'are installed to be in close contact with the front space maintaining blocks 244 of the support plate 241. By installing the concrete block 3 as well to drain the drainage space 247, that is, rainwater or groundwater that has soaked in the reinforcement soil, between the space-side space maintenance block 244 'of the support plate 241 and the concrete block 3, respectively. Drainage space 247 may be formed.

Therefore, the block-type reinforced soil retaining wall 1 of the present invention completed as described above is collected rainwater or groundwater introduced through the drainage space 247 through the installation groove 241a, the collected rainwater or groundwater is drained As it is drained to the outside through the inclined drainage hole 242a via the hole 241b and the drain connector 245, it is possible to perform a rapid drainage treatment. In addition, the foundation geogrid 21 constituting the foundation (2) is installed in the ground can ensure the safety by interaction with the soil. In addition, the concrete base plate 24 installed on the upper part of the protrusion 211 of the base geogrid 21 can procure each plate (241, 242, 243) as a finished product in the factory factory to perform the construction work through a simple assembly process Can be.

5 is a perspective view illustrating another embodiment of a concrete block in a block type reinforced soil retaining wall according to the present invention, and FIG. 6 is a block type reinforced concrete retaining wall according to the present invention. It is a side sectional view for demonstrating a state.

Referring to FIG. 5, a concrete block 3 ′ according to another embodiment is installed stepwise on an upper surface of the foundation 2, which is a planting groove 31, for example, on the upper surface of the concrete block 3 ′. Sufficient depth is provided for planting the tubular plant and the planting groove 31 is provided which is inclined with respect to the front surface of the concrete block 3 '. In addition, the bottom surface of the planting groove 31 is configured to be in communication with the front drain hole 32 drilled in the front of the concrete block (3 ').

Referring to FIG. 6, the concrete block 3 ′ according to another embodiment is stacked on the top surface of the support plate 241 constituting the foundation, that is, the concrete foundation plate 24. At this time, the concrete block 3 'laminated on the upper portion of the support plate 241 is in the space maintaining blocks 244 and 244' protruding from the upper surface of the support plate 241, the rear space maintaining block 244 '. It is installed to be in close contact with. According to this configuration, between the space-side space maintenance block 244 of the support plate 241 and the concrete block 3 'for drainage space 247', that is, for draining rainwater or groundwater that has penetrated the reinforced soil The drainage space 247 'may be formed, and as described above, the drainage space 247' → the installation groove 241a → the drainage hole 241b → the drainage connector 245 → the sloped drainage hole 242a Drain function can be performed. In addition, each concrete block (3 ') that is stacked in a step is to drain the water in the planting groove 31 through the front drain hole 32 provided in the front.

As described above, the block-type reinforcement soil retaining wall according to the present invention forms a foundation with a foundation geogrid, a soil compaction surface, a rubble layer, and a concrete foundation plate, thereby maintaining a solid construction state, and supporting plates and slopes for constructing the concrete foundation plate. The plate has an effect of quickly draining groundwater and rainwater by forming drainage spaces and respective drainage holes for draining rainwater or groundwater that has soaked into the reinforcement soil.

Claims (6)

It includes a foundation to be constructed on the ground after the excavation work, a rubble layer formed on the top of the compacted foundation, and a concrete block stacked in multiple stages and provided with planting grooves on the foundation, the concrete block on the upper surface of the foundation In the step of reinforcing soil retaining wall with a multi-layered geogrid, which is a reinforcement between each concrete block, On the foundation, the foundation geogrid is installed so that the protrusions corresponding to the concrete foundation plates are formed, The concrete base plate installed on the upper part of the rubble layer includes at least one support plate, an inclined plate installed on the front of the support plates, and a joint plate installed at the bent portion of the support plates, wherein each support plate Is provided with a set of installation grooves for installing the interval maintaining block having an insertion protrusion on the upper surface of the concrete block is stacked, the front is formed with a drain hole communicating with the installation grooves, the inclined plate Block reinforcement soil retaining wall of the road comprising a perforated slope drainage hole connected to the drainage hole by a drain connector. delete delete The method of claim 1, Block length reinforcement soil retaining wall of the road, characterized in that the length between the space maintaining block and the space maintaining block of the support plate is configured to be at least longer than the width of the concrete block so that the groundwater and rainwater can be drained through the drain hole. The method of claim 1, Block-reinforced soil retaining wall of the road, characterized in that at least one fastening groove for connecting the fastener is provided on both sides of the support plate and the joint plate. The method of claim 1, The concrete block block reinforcement earth retaining wall of the road, characterized in that the front drain hole is drilled in the planting groove.

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