Roadbed slope protection structure

Abstract

The utility model discloses a roadbed slope protection structure, which belongs to the technical field of roadbed slope protection, and comprises a slope arranged at the side part of a roadbed, and the soil base layer of the slope is provided with a gully collapse surface; the steps are dug in the soil base layer and arranged on the back face of the gully collapse face; the slide-resistant piles are arranged on the step surfaces of the steps, the lower parts of the slide-resistant piles are embedded in the soil base layer, and the upper parts are arranged in front of the gully collapse surface; the overburden layer is backfilled on the steps, and the upper surface of the overburden layer and the upper surface of the soil base layer jointly form a slope surface of the side slope; the protective layer covers the slope surface; the steps are dug on the soil base layer, the overburden layer is backfilled on the steps, the step faces of the steps support the lower surface of the overburden layer, the slide-resistant piles are buried in the soil base layer, the upper portions of the slide-resistant piles extend out of the step faces to be arranged in front of the gully collapse face, the overburden layer is anchored, the structure is simple, the manufacturing cost is low, and the construction period is short. And the landslide phenomenon of the side slope caused by rain wash can be effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of roadbed slope protection, in particular to a roadbed slope protection structure. Background Art

[0002] The roadbed slope refers to the inclined surface where the two sides of the roadbed cross section connect to the ground. The roadbed slope of some highways has a large fill height and a steep slope. The slope soil is mainly silty sand. After being washed by rainwater, the roadbed slope is prone to landslides with a depth of more than one meter. Some bridgeheads and high fill sections are directly washed to the vertical surface, affecting the stability of the highway pavement. In the existing technology, concrete retaining walls are generally used to protect the roadbed slopes. The retaining walls are expensive and have a long construction period. Utility Model Content

[0003] The purpose of the utility model is to provide a roadbed slope protection structure to solve the above-mentioned problems existing in the prior art.

[0004] Technical solution: A roadbed slope protection structure includes a slope, which is arranged on the side of the roadbed, and the soil base of the slope has a gully collapse surface;

[0005] A step is dug in the soil base, and the step is placed on the back of the gully collapse surface;

[0006] Anti-slip piles are arranged on the step surface of the step, the lower part of the anti-slip piles is buried in the soil base, and the upper part is placed in front of the gully collapse surface;

[0007] A covering soil layer is backfilled on the step, and the upper surface of the covering soil layer and the upper surface of the soil base layer together form the slope surface of the slope;

[0008] A protective layer covers the slope surface.

[0009] Preferably, the anti-slip piles include guardrail posts, which are arranged on the step surface, wherein the lower part of the guardrail posts is buried in the soil base layer, and the upper part is placed in front of the gully collapse surface;

[0010] The guardrail plate is detachably connected to the guardrail posts in the same row, and the guardrail plate is placed in front of the gully collapse surface.

[0011] Preferably, the guardrail posts are buried in the soil base to a depth of at least 2m.

[0012] Preferably, the height of the guardrail column extending out of the step surface is 15cm-20cm.

[0013] Preferably, the distance between two adjacent rows of guardrail posts is at least 4m.

[0014] Preferably, the protective layer comprises prefabricated concrete blocks, which are laid in an array on the slope surface;

[0015] The retaining wall is buried in the floor, and one side of the retaining wall extends out of the floor to form an extension portion, and the extension portion stops at the lower side of the bottom row of prefabricated concrete blocks.

[0016] Preferably, the protective layer also includes a concrete layer covering the upper surface of the roadbed and the upper part of the slope, and one side of the concrete layer is stopped by the water retaining strip of the roadbed, and the other side is stopped by the upper side edge of the top row of precast concrete blocks.

[0017] Preferably, the protective layer also includes a cushion layer, which is arranged between the slope surface and the precast concrete blocks.

[0018] In summary, the beneficial effects of the utility model are:

[0019] 1. Dig steps on the soil base and backfill the overburden layer on the steps so that the steps face the lower surface of the overburden layer to form a support, and bury anti-slip piles in the soil base. The upper part of the anti-slip piles extends over the step surface and is placed in front of the gully collapse surface to anchor the overburden layer. It has a simple structure, low cost, and short construction period, and can effectively prevent landslides caused by rain erosion on the slope.

[0020] 2. Precast concrete blocks are laid in an array on the slope to protect the slope, which can effectively prevent soil erosion and improve the stability of the slope.

[0021] 3. Anti-slip piles can be made of waste guardrails of highways, which can recycle waste materials, save energy and protect the environment, and are highly applicable to highway roadbed slopes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the roadbed slope protection structure;

[0023] Figure 2 yes Figure 1 Schematic diagram of the protective layer in ;

[0024] Figure 3 yes Figure 2 The unfolded plan view of the protective layer.

[0025] The accompanying drawings are marked as follows: 1. slope; 2. slope surface; 3. soil base layer; 4. gully collapse surface; 5. steps; 6. step surface; 7. anti-slip piles; 8. guardrail columns; 9. guardrail boards; 10. overburden layer; 11. protective layer; 12. precast concrete blocks; 13. retaining wall; 14. extension; 15. concrete layer; 16. cushion layer; 17. floor. DETAILED DESCRIPTION

[0026] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described. Example 1

[0027] like Figure 1 and Figure 2 As shown, the roadbed slope protection structure disclosed in this embodiment includes a slope 1, which is arranged on the side of the roadbed, and the soil base 3 of the slope 1 has a gully collapse surface 4; a step 5, which is dug in the soil base 3, and the step 5 is placed on the back of the gully collapse surface 4; an anti-slip pile 7, which is arranged on the step surface 6 of the step 5, and the lower part of the anti-slip pile 7 is buried in the soil base 3, and the upper part is placed in front of the gully collapse surface 4; a covering layer 10, which is backfilled on the step 5, and the upper surface of the covering layer 10 is connected with the upper surface of the soil base 3. A slope surface 2 of a slope 1 is formed; a protective layer 11 is covered on the slope surface 2; a step 5 is excavated on the soil base 3, and a covering soil layer 10 is backfilled on the step 5, so that the step surface 6 of the step 5 supports the lower surface of the covering soil layer 10, and anti-slip piles 7 are buried in the soil base 3, and the upper part of the anti-slip piles 7 extends over the step surface 6 and is placed in front of the gully collapse surface 4 to anchor the covering soil layer 10. The structure is simple, the cost is low, the construction period is short, and the slope 1 can be effectively prevented from sliding due to rain erosion.

[0028] The anti-slide pile 7 can be made of waste guardrails of highways, and the waste materials are recycled, which is energy-saving and environmentally friendly, and has strong applicability to highway roadbed slopes.

[0029] like Figure 1 As shown, the anti-slip piles 7 include guardrail posts 8, which are arranged on the step surface 6. The lower part of the guardrail posts 8 is buried in the soil base layer 3, and the upper part is placed in front of the gully collapse surface 4; guardrail plates 9 are detachably connected to the guardrail posts 8 in the same row, and the guardrail plates 9 are placed in front of the gully collapse surface 4; guardrail posts 8 are buried in the soil base layer 3, and the upper part of the guardrail posts 8 extends over the step surface 6 and is placed in front of the gully collapse surface 4, and the guardrail plates 9 are connected to the upper part of the guardrail posts 8 to form an anchoring structure, which anchors the overburden layer 10, and can effectively prevent the slope 1 from sliding due to rain erosion.

[0030] like Figure 1 As shown, the guardrail post 8 is buried in the soil base 3 to a depth of at least 2 m, ensuring that the lower portion of the guardrail post 8 is stably buried in the soil base 3 .

[0031] like Figure 1 As shown, the guardrail post 8 extends out of the step surface 6 by a height of 15 cm-20 cm, so that the upper part of the guardrail post 8 is placed in front of the gully collapse surface 4.

[0032] like Figure 1 As shown, the distance between two adjacent rows of guardrail posts 8 is at least 4 m to ensure the anchoring strength of the guardrail posts 8 and the guardrail panels 9.

[0033] like Figure 2 and Figure 3 As shown, the protective layer 11 includes precast concrete blocks 12, which are laid in an array on the slope 2; a retaining wall 13, which is buried in the floor 17, and one side of the retaining wall 13 extends out of the floor 17 to form an extension 14, and the extension 14 stops at the lower side of the bottom row of precast concrete blocks 12; the precast concrete blocks 12 are laid in an array on the slope 2 to protect the slope 2, which can effectively prevent soil erosion of the slope 1 and improve the stability of the slope 1, and the retaining wall 13 is buried in the floor 17 to support the lower side of the bottom row of precast concrete blocks 12 to prevent the precast concrete blocks 12 from sliding down and collapsing.

[0034] The prefabricated concrete blocks 12 can be laid on the slope surface 2 using solid hexagonal blocks or hollow hexagonal blocks. Plants can also be planted in the hollow hexagonal blocks to anchor the soil of the slope 1 using the plant roots, thereby further improving the stability of the slope 1. Example 2

[0035] like Figure 2 and Figure 3 As shown, the difference from Example 1 is that in the roadbed slope protection structure disclosed in this embodiment, the protection layer 11 also includes a concrete layer 15, which covers the upper surface of the roadbed and the upper part of the slope 2, and one side of the concrete layer 15 is stopped by the water retaining belt of the roadbed, and the other side is stopped by the upper side of the top row of precast concrete blocks 12; the upper side of the top row of precast concrete blocks 12 is supported by the concrete layer 15, so as to improve the compactness of the laying of the precast concrete blocks 12. Example 3

[0036] like Figure 1 and Figure 2 As shown, the difference from Example 1 is that in the roadbed slope protection structure disclosed in this embodiment, the protection layer 11 also includes a cushion layer 16, which is arranged between the slope surface 2 and the precast concrete block 12; the cushion layer 16 is lined on the lower surface of the precast concrete block 12 to prevent the upper surface of the precast concrete block 12 from being uneven.

[0037] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A roadbed slope protection structure, It is characterized in that It includes a side slope, which is arranged on the side of the roadbed, and the soil base of the side slope has a gully collapse surface; A step is dug in the soil base, and the step is placed on the back of the gully collapse surface; Anti-slip piles are arranged on the step surface of the step, the lower part of the anti-slip piles is buried in the soil base, and the upper part is placed in front of the gully collapse surface; A covering soil layer is backfilled on the step, and the upper surface of the covering soil layer and the upper surface of the soil base layer together form the slope surface of the slope; A protective layer covers the slope surface.

2. A roadbed slope protection structure according to claim 1, It is characterized in that The anti-slide piles include guardrail posts, which are arranged on the step surface, wherein the lower part of the guardrail posts is buried in the soil base layer, and the upper part is placed in front of the gully collapse surface; The guardrail plate is detachably connected to the guardrail posts in the same row, and the guardrail plate is placed in front of the gully collapse surface.

3. A roadbed slope protection structure according to claim 2, It is characterized in that The guardrail posts are buried in the soil base at a depth of at least 2m.

4. A roadbed slope protection structure according to claim 3, It is characterized in that The height of the guardrail column extending out of the step surface is 15cm-20cm.

5. A roadbed slope protection structure according to claim 2, It is characterized in that The distance between two adjacent rows of guardrail posts is at least 4m.

6. A roadbed slope protection structure according to claim 1, It is characterized in that The protective layer includes prefabricated concrete blocks, which are laid in an array on the slope surface; The retaining wall is buried in the floor, and one side of the retaining wall extends out of the floor to form an extension portion, and the extension portion stops at the lower side of the bottom row of prefabricated concrete blocks.

7. A roadbed slope protection structure according to claim 6, It is characterized in that The protective layer also includes a concrete layer, which covers the upper surface of the roadbed and the upper part of the slope. One side of the concrete layer is stopped by the water retaining strip of the roadbed, and the other side is stopped by the upper side edge of the top row of concrete prefabricated blocks.

8. A roadbed slope protection structure according to claim 6, It is characterized in that The protective layer also includes a cushion layer, which is arranged between the slope surface and the prefabricated concrete blocks.

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