CN202509355U - Novel roadbed side slope protective structure and prefabricated concrete block used in the same - Google Patents

Abstract

The utility model discloses a novel roadbed slope protection structure and a used prefabricated concrete block, belonging to the technical field of roadbed engineering. A new roadbed slope protection structure, the foundation is a stone foundation, and it is characterized in that it includes a slope protection layer (5) formed by laying prefabricated concrete blocks (1) closely along the slope surface of the roadbed slope, and a slope protection layer (5) arranged on the slope protection layer (5). ) lower part of the seepage cushion (6), the prefabricated concrete block (1) is a regular hexagonal prism structure, and is provided with drainage holes (7) penetrating the upper and lower surfaces of the cylinder. The utility model has simple structure, high safety and beautiful appearance, and the protective structure has simple construction, little pollution and low construction cost.

Description

New roadbed slope protection structure and prefabricated concrete block used

technical field

The utility model relates to a roadbed slope protection structure for railways, highways, municipal roads, etc., and belongs to the technical field of roadbed engineering. The utility model also relates to a prefabricated concrete block used for roadbed slope protection.

Background technique

Roadbed slope protection is widely used in various roadbed projects such as railways, highways, and municipal roads. Usually, mortar rubble is used to protect the roadbed slope. When masonry rubble is used to protect the embankment slope, during the construction process, due to factors such as lack of building ground materials (gravel) or poor quality of the rubble, it cannot meet the quality requirements of the internal and external beauty of the embankment slope protection, which affects the safety and quality of the project.

In addition, the use of masonry rubble to protect the embankment slope requires a lot of resources such as construction manpower and materials, long construction period, high cost, and difficult construction quality control. Moreover, cement masonry is mixed on site to build rubble, which can easily cause water and water pollution. Environmental pollution such as cultivated land.

Contents of the invention

Aiming at the above-mentioned defects in the prior art, the utility model provides a new roadbed slope protection structure, the paved slope has high safety performance and is beautiful, and the protection structure is simple in construction, less polluted and low in construction cost.

The utility model is realized through the following technical solutions: a new roadbed slope protection structure, the foundation is a stone foundation, and its special feature is that it includes a slope protection formed by laying prefabricated concrete blocks closely along the roadbed slope surface The layer and the seepage cushion layer arranged at the lower part of the slope protection layer, the prefabricated concrete block is a regular hexagonal prism structure, and there are drainage holes penetrating the upper and lower surfaces of the prism.

The utility model uses the prefabricated concrete blocks of regular hexagonal prism structure as paving slope protection material, and forms a high-stability slope protection layer through the regular hexagonal prism concrete blocks being closely attached to each other during paving. Slope protection requires the strength of masonry blocks, so that the paved slope protection has relatively high stability and strength, which can effectively ensure the quality of slope protection. The seepage cushion at the lower part of the slope protection layer and the drainage holes arranged on the concrete block can effectively carry out seepage and drainage, and ensure the quality and life of the slope protection.

In order to improve the quality of slope protection masonry and prevent slope protection from falling down, the utility model is provided with a concrete block at the foot of the slope, and a part of the concrete block in the width direction is rooted on the stone foundation, and the other Part of it is rooted on the slope.

A further solution is that the concrete block has a height of 10cm and a width of 15cm, wherein the width of the block rooted on the base of the mortar is 10cm.

The water-permeable cushion in the utility model can be laid with water-permeable fillers with good water stability. Considering the reliability and economy of the water seepage performance of the water seepage filler, the water seepage cushion described in the utility model is a gravel cushion. In order to ensure the water seepage effect of the seepage cushion, the thickness of the gravel cushion is 0.08m.

In order to improve the strength of the concrete block while taking into account the economy, the prefabricated concrete block is a C25 plain concrete block.

The technical scheme adopted by the prefabricated concrete block used for roadbed slope protection in the utility model is: the prefabricated concrete block is a regular hexagonal prism structure, and there are drainage holes penetrating the upper and lower surfaces of the column body.

The labels of the prefabricated concrete in the utility model can be properly adjusted according to actual needs. In order to ensure the strength of the prefabricated concrete block while taking into account the economy, the prefabricated concrete block is a C25 plain concrete block.

In order to ensure the quality of the prefabricated concrete block while taking into account aesthetics, practicality and economy, the side length of the prefabricated concrete block is 15cm-30cm, and the thickness is 8cm-12cm. The side length is preferably 15cm, the thickness is preferably 8cm, and the drainage hole 7 is preferably a circular hole with a diameter of 5cm.

The beneficial effects of the utility model are: the utility model uses the prefabricated concrete block of the regular hexagonal prism structure as the slope protection material for paving, which not only can greatly improve the stability and safety of the slope protection built by masonry, but also because of the high strength of the concrete block, it is easy to use its masonry The strength of the slope protection is high, which can effectively guarantee the quality and life of the slope protection; secondly, because the utility model uses prefabricated concrete blocks as paving materials, the concrete blocks can be mass-produced, the size is stable, and the construction speed is fast when paving, which can effectively shorten the construction period and reduce construction costs. , the paved slope protection is beautiful, and at the same time, no cement mixing is required on site, and the pollution during construction is small.

Description of drawings

Fig. 1 is the front schematic diagram of the slope protection that utilizes prefabricated concrete blocks to pave in the utility model embodiment;

Fig. 2 is a schematic sectional view of A-A in Fig. 1;

Fig. 3 is the structural representation of the prefabricated concrete block in Fig. 1;

In the figure, 1. prefabricated concrete block, 2. drainage channel, 3. stone foundation, 4. half prefabricated concrete block, 5. slope protection layer, 6. seepage cushion, 7. drainage hole, 8. concrete block.

Detailed ways

Below in conjunction with accompanying drawing and non-limiting embodiment, the utility model is further described:

As shown in the accompanying drawings 1-2, a new type of subgrade slope protection structure, the slope protection foundation is the stone foundation 3, and the prefabricated concrete block 1 is closely laid along the slope surface to form a slope protection layer 5, and the lower part of the slope protection layer 5 is provided with water seepage Cushion 6. The water seepage filler of the water seepage cushion layer 6 can adopt water permeability filler with good water stability. In this embodiment, the water seepage cushion layer is a gravel cushion layer with a thickness of 0.08m. A concrete block 8 is provided at the slope toe of the slope, and a part of the concrete block 8 in its width direction is rooted on the stone foundation 3, and the other part is rooted on the side slope. The height of concrete block 8 in the present embodiment is 10cm, and width is 15cm, and wherein concrete block 8 has 10cm to be rooted on the stone base 3 in width direction, and 5cm is rooted on the slope protection. There is a drainage groove 2 every 15m along the line direction, and the starting and ending mileage of paving the precast concrete block 1 ends with the drainage groove 2.

As shown in Figure 3, the prefabricated concrete block 1 is a regular hexagonal prism structure, which is a C25 plain concrete prefabricated block. The hexagonal prism is provided with drainage holes 7 that penetrate the upper and lower surfaces of the cylinder. Water penetration requirements. The shape of the drainage hole 7 can be a round hole or an oval hole or a triangular hole or a rectangular hole or other shapes. The drainage hole 7 is preferably arranged in the middle of the prefabricated block.

In the actual masonry process, the prefabricated concrete block can be partially cut, as shown in Figure 1, half a prefabricated concrete block 4 can be used for masonry at the foot of the slope.

The size of the side length and thickness of the prefabricated concrete block 1 adopted in the utility model, the size of the drainage hole on the prefabricated block and the label of the concrete all can be adjusted appropriately according to actual needs. In order to ensure the quality of the prefabricated concrete block, while taking into account the aesthetics, practicality and economy, the side length of the prefabricated concrete block 1 is preferably 15cm-30cm, and the thickness is preferably 8cm-12cm. The prefabricated concrete block 1 shown in this embodiment has a side length of 15 cm and a thickness of 8 cm. The drain hole 7 arranged in the middle of the precast concrete block 1 is a circular hole with a diameter of 5 cm. According to the above data, the volume of each hexagonal block is 0.0047m ³ and the area is 0.0584m ² , 17.11 hexagonal blocks are laid per square meter, and the amount of C25 concrete per square meter is 0.08 cubic meters. Its construction cost is much lower than the cost of paving with the prior art.

The other parts of this embodiment adopt the existing technology, which will not be repeated here.

Claims (10)

1. novel roadbed side slope safeguard structure; The basis is the pave floor with bricks, stones etc. stone foundation; It is characterized in that: it comprises bank protection layer (5) that is formed along the domatic tight laying of roadbed side slope by precast concrete block (1) and the infiltration bed course (6) that is arranged on said bank protection layer (5) bottom; Said precast concrete block (1) is positive six prism structures, which is provided with the drain hole (7) that connects the cylinder upper and lower surfaces.

2. novel roadbed side slope safeguard structure according to claim 1; It is characterized in that: be provided with concrete block (8) at side slope toe place; Said concrete block (8) is taken root in the pave floor with bricks, stones etc. stone foundation in the wherein part on its width, and its another part is taken root on side slope.

3. novel roadbed side slope safeguard structure according to claim 2 is characterized in that: the height of said concrete block (8) is 10cm, and width is 15cm, and the width of wherein taking root in the pave floor with bricks, stones etc. stone foundation is 10cm.

4. according to claim 1 or 2 or 3 described novel roadbed side slope safeguard structures, it is characterized in that: said infiltration bed course (6) is the gravel bed course.

5. novel roadbed side slope safeguard structure according to claim 4 is characterized in that: the thickness of said gravel bed course is 0.08m.

6. according to claim 1 or 2 or 3 described novel roadbed side slope safeguard structures, it is characterized in that: said precast concrete block (1) is a C25 plain concrete piece.

7. precast concrete block that is used for the roadbed side slope revetment is characterized in that: it is positive six prism structures, which is provided with the drain hole (7) that connects the cylinder upper and lower surfaces.

8. the precast concrete block that is used for the roadbed side slope revetment according to claim 7 is characterized in that: said precast concrete block (1) is a C25 plain concrete piece.

9. according to claim 7 or the 8 described precast concrete blocks that are used for the roadbed side slope revetment, it is characterized in that: the length of side of said precast concrete block (1) is 15-30cm, and thickness is 8-12cm.

10. the precast concrete block that is used for the roadbed side slope revetment according to claim 9 is characterized in that: the length of side of said precast concrete block (1) is 15cm, and thickness is 8cm, and drain hole (7) is the circular hole of 5cm for diameter.

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