CN212357958U

CN212357958U - Step type three-dimensional reinforced abutment taper slope ecological protection

Info

Publication number: CN212357958U
Application number: CN202020391579.XU
Authority: CN
Inventors: 陈小林; 朱凯
Original assignee: Xiamen Dafangzhou Construction Co ltd
Current assignee: Xiamen Dafangzhou Construction Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-01-15
Anticipated expiration: 2030-03-25

Abstract

The utility model relates to a three-dimensional solid of step adds ecological protection of muscle abutment cone slope, its characterized in that: the foundation comprises backfill soil, a geogrid, a foundation A, a step type component and a corner component; the backfill soil is arranged on one side of the platform body, which is close to the water surface, in a step shape, and geogrids are arranged in the backfill soil in layers; the geogrid is in a reverse-wrapped shape at two ends above the highest water level, one end of the geogrid is close to the platform body, an isolation belt is arranged in the other end of the geogrid, one end of the geogrid below the highest water level is in a reverse-wrapped shape, the reverse-wrapped end of the geogrid is close to the platform body, and the other end of the geogrid horizontally extends to the step type component; the bottom of the foundation A is provided with a toe guard pile, and the top of the foundation A is provided with a step type component; the stepped components are mutually engaged in the vertical direction and are fixedly connected in the horizontal direction through bolts; the corner component is arranged at the arc of the conical slope and is fixedly connected with the step component through a bolt. The ecological protection construction is convenient and fast, high in stability, good in waterproofness, strong in ecological effect, small in occupied area and outstanding in comprehensive benefit.

Description

Step type three-dimensional reinforced abutment taper slope ecological protection

Technical Field

The utility model relates to a three-dimensional muscle abutment slope of adding of step ecological protection belongs to the bridge engineering field, is applicable to abutment slope protection construction, is particularly useful for the abutment slope protection construction of crossing the water bridge.

Background

The protection effect of the soil body of the conical slope influences not only the stability of the conical slope but also the attractiveness of an engineering route due to the special position and the structural form of the conical slope in bridge engineering. Common bridge abutment taper slope diseases such as cone collapse, slope sliding cracks, local falling and the like. When rainwater enters the cone in a large amount, the whole cone is often damaged, the abutment body and the ear back wall are exposed outside, and when a road base is impacted by a vehicle, a part of pressure is balanced due to the absence of a cone slope, and the conditions of crack of the abutment body and fracture of the ear back wall occur. The traditional conical slope protection comprises vegetation protection and engineering protection, wherein the vegetation protection refers to direct watering of grass planting or turf planting on a slope surface, and the engineering protection refers to the utilization of engineering technical means to guarantee the safety and stability of a soil body. However, although the single vegetation protection enhances the ecological effect of the conical slope, the cost is low, the economic benefit is good, but the stabilizing effect on the soil body is poor; the single engineering protection can lead the surface of the slope to be monotonous and lack of gas generation, and has high construction cost and poor economic benefit.

In order to make up the defects of single vegetation protection and engineering protection, the design of the step type three-dimensional reinforced abutment slope ecological protection which is convenient and fast to construct, high in stability, good in waterproofness, strong in ecological effect and small in occupied area is very key. Based on above-mentioned background, the development has formed the utility model discloses, be applied to must will obtain obvious economic benefits and social in the actual abutment slope protection construction.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the stepped three-dimensional reinforced abutment slope ecological protection system has the advantages that the protection system is convenient and fast to construct, high in stability, good in waterproofness, strong in ecological effect and small in occupied area, and the ecological protection system is high in water resistance and low in ecological effect.

In order to realize the technical purpose, the utility model discloses a following technical scheme:

the utility model relates to a three-dimensional solid of step adds ecological protection of muscle abutment cone slope, its characterized in that: the foundation comprises backfill soil, a geogrid, a foundation A, a step type component, a corner component and a drainage cushion layer; the backfill soil is arranged on one side of the platform body close to the water surface in a step shape, and geogrids are arranged in the backfill soil in layers; the backfill soil is provided with a waterproof layer at the contact part with the foundation and the foundation B; the two ends of the geogrid above the highest water level are in a reverse-wrapped shape, one end of the geogrid is close to the platform body, and an isolation belt is arranged inside the other end of the geogrid; one end of the geogrid below the highest water level is in a reverse-wrapped shape, the reverse-wrapped end of the geogrid is close to the platform body, and the other end of the geogrid horizontally extends to the step-type component; the foundation A is arranged in a foundation, the bottom of the foundation A is provided with a toe guard pile, and the top of the foundation A is provided with a step type component; the step type component is provided with a groove A at the top, a bulge A at the bottom, a preformed hole A at the center and four walls, and bolt holes A at two ends; the stepped components are in snap joint with the protrusions A through the grooves A in the vertical direction and are fixedly connected through bolts in the horizontal direction; the step type component is internally provided with a filler; the step type component is provided with a waterproof layer at the contact part with the backfill soil; (ii) a The top of the corner component is provided with a groove B, the bottom of the corner component is provided with a bulge B, the center of the corner component is provided with a reserved hole B, and the end part of the corner component is provided with a bolt hole B; the corner component is arranged at the arc part of the conical slope and is fixedly connected with the step components at the two sides through bolts; the drainage cushion layer is arranged in the foundation next to the foundation A, and waterproof layers are arranged at the bottom and two sides of the drainage cushion layer.

Preferably, the bottom of the stepped member is engaged with the base a by a protrusion a.

Preferably, the top surface of the stepped member is higher than the highest water level.

Preferably, non-woven fabrics are arranged at the bottom and two sides of the isolation belt.

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the step type components are built below the highest water level to form the conical slope protection feet, so that impact load of water flow can be eliminated to the maximum extent, the stability of slope protection is improved, and the slope protection structure is not easy to slide and damage; compared with the traditional conical slope protection, the method obviously reduces the occupied area and saves the earthwork consumption.

(2) The step type member and the corner member are of reinforced concrete structures, belong to artificial stones, are stable in chemical property, are not prone to corrosion when soaked in river water, and are good in durability.

(3) The broken stone and the sandy soil are used as internal fillers of the step type components and the corner components, so that the nesting and the growth of aquatic organisms are facilitated, the ecological environment is promoted, the soil, the sand and the like on a construction site can be used for filling, and local materials are obtained.

(4) The step type components are spliced at the conical slope circular arc part through the corner components, the problem that the conical slope circular arc part is difficult to protect is solved, construction operation is simple, and practicability is high.

(5) The geogrid is laid in the backfill soil in a reverse-wrapped layered manner, so that the stability of the backfill soil is improved, and the compression deformation is reduced; and the reverse wrapping treatment simplifies the construction process and accelerates the construction speed, the geogrid is separated from the abutment, the safety of the abutment is improved, and the influence of the geogrid on the foundation settlement is reduced.

(6) The step-shaped conical slope protection converts slope plant planting into plane plant planting, and changes original single grass planting into a three-dimensional ecological plant group combining arbor, shrub and grass, so that the slope protection engineering soil is stable; the problem that the slope soil is easy to run off is solved by arranging the end isolation belt; and the rain can be intercepted, the water can be stored and the soil moisture can be preserved, the irrigation water can be saved, the dry branches and fallen leaves can be reserved, and the later-period management and protection cost can be reduced.

Drawings

FIG. 1 is a longitudinal section view of ecological protection of a stepped three-dimensional reinforced abutment conical slope;

FIG. 2 is a cross-sectional view A-A of ecological protection of a stepped three-dimensional reinforced abutment conical slope;

FIG. 3 is a cross-sectional view B-B of ecological protection of a stepped three-dimensional reinforced abutment conical slope;

FIG. 4 is a detail view of the stepped member;

figure 5 is a detail view of the corner member.

In the figure: 1. geogrid, 2. backfill soil, 3. step type components, 301. groove A, 302. protrusion A, 303. reserved hole A, 304. bolt hole A, 4. corner components, 401. groove B, 402. protrusion B, 403. reserved hole B, 404. bolt hole B, 5. filler, 6. foundation A, 7. foot protection pile, 8. waterproof layer, 9. foundation, 10. highest water level, 11. bolt, 12. abutment cap, 13. abutment body, 14. foundation B, 15. abutment pile foundation, 16. abutment back, 17. bridge floor, 18. road surface, 19. drainage cushion layer, 20. non-woven fabric, 21. isolation strip.

Detailed Description

The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, and the following examples are illustrative of the present invention and are not limited to the following examples.

With reference to fig. 1, the ecological protection of the stepped three-dimensional reinforced abutment slope includes backfill 2, geogrids 1, a foundation a6, a stepped member 3, a corner member 4 and a drainage cushion 19; the backfill soil 2 is filled on one side of the platform body 13 close to the water surface in a step shape, the inner part of the backfill soil 2 is paved with geogrids 1 in layers, the geogrids 1 adopt composite fiber nets or galvanized steel bar nets, and the layered paving height is 500 mm; laying a waterproof layer 8 on the contact part of the backfill 2 with the foundation 9 and the foundation B14, wherein the waterproof layer 8 is made of waterproof geotextile; the bottom of the step member 3 is snapped with the base A6 through the projection A302; the top surface of the step type component 3 is higher than the highest water level 10; the foundation A6 is buried in the foundation 9, and the bottom of the foundation A6 is used as a foot protection pile 7 and the top of the foundation A is laid with a step type member 3; the step members 3 are in snap-in connection with the protrusions A302 through the grooves A301 in the vertical direction; filling materials 5 are filled in the step type component 3, and broken stones and sandy soil (preferentially adopting broken stones and sandy soil on a construction site) are adopted as the filling materials 5; a waterproof layer 8 is laid on the contact part of the step-type component 3 and the backfill 2; the drainage cushion layer 19 is arranged in the foundation 9 next to the foundation A6, waterproof layers 8 are laid on the bottom and two sides of the drainage cushion layer 19, and graded broken stones are adopted by the drainage cushion layer 19.

As shown in fig. 2, one end of the geogrid 1 below the highest water level 10 is in a reverse-wrapped shape, the reverse-wrapped end is close to the platform body 13, and the other end horizontally extends to the step-type member 3; the step components 3 are connected and fixed in the horizontal direction through bolts 11; the corner component 4 is arranged at the arc part of the conical slope and is connected and fixed with the step components 3 at two sides through bolts.

As shown in fig. 3, the two ends of the geogrid 1 above the highest water level 10 are in a reverse bag shape, one end of the geogrid is close to the platform body 13, and an isolation strip 21 is filled inside the other end of the geogrid; the bottom and two sides of the isolation belt 21 are wrapped with non-woven fabrics 20.

As shown in FIG. 4, the stepped member 3 is provided with a groove A301 at the top, a protrusion A302 at the bottom, a preformed hole A303 at the center and four walls, bolt holes A302 at two ends, and is a reinforced concrete prefabricated member with a total length of 1400mm, a width of 700mm, a height of 500mm, a wall thickness of 80mm, and a diameter of 300mm of the preformed hole A303.

As shown in fig. 5, the top of the corner member 4 is provided with a groove B401, the bottom is provided with a protrusion B402, the center is provided with a prepared hole B403, the end is provided with a bolt hole B402, the corner member 4 is a reinforced concrete prefabricated member, the height is 500mm, the cross section size is designed, and the diameter of the prepared hole B403 is 300 mm.

The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. Step three-dimensional reinforced abutment cone slope ecological protection, its characterized in that: the foundation comprises backfill soil (2), a geogrid (1), a foundation A (6), a step type component (3), a corner component (4) and a drainage cushion layer (19); the backfill soil (2) is arranged on one side of the platform body (13) close to the water surface in a step shape, and the backfill soil (2) is internally provided with the geogrids (1) in a layered mode; the backfill soil (2) is provided with a waterproof layer (8) at the contact part with the foundation (9) and the foundation B (14); the two ends of the geogrid (1) above the highest water level (10) are in a reverse bag shape, one end of the geogrid is close to the platform body (13), and an isolation belt (21) is arranged inside the other end of the geogrid; one end of the geogrid (1) below the highest water level (10) is in a reverse-wrapped shape, the reverse-wrapped end of the geogrid is close to the platform body (13), and the other end of the geogrid horizontally extends to the step-type component (3); the foundation A (6) is arranged in a foundation (9), the bottom of the foundation A is provided with a toe guard pile (7), and the top of the foundation A is provided with a step type component (3); the top of the step component (3) is provided with a groove A (301), the bottom is provided with a bulge A (302), the four walls and the center are provided with a preformed hole A (303), and the two ends are provided with bolt holes A (304); the step-type components (3) are in snap joint with the protrusions A (302) through the grooves A (301) in the vertical direction and are fixedly connected through the bolts (11) in the horizontal direction; a filler (5) is arranged in the step type component (3); a waterproof layer (8) is arranged at the contact part of the step-type component (3) and the backfill soil (2); the top of the corner component (4) is provided with a groove B (401), the bottom is provided with a bulge B (402), the center is provided with a reserved hole B (403), and the end part is provided with a bolt hole B (404); the corner component (4) is arranged at the arc part of the conical slope and is fixedly connected with the step components (3) at the two sides through bolts; the drainage cushion layer (19) is arranged in the foundation (9) close to the foundation A (6), and waterproof layers (8) are arranged at the bottom and two sides of the drainage cushion layer.

2. The ecological protection of the stepped three-dimensional reinforced abutment and the conical slope according to claim 1, is characterized in that: the bottom of the step type component (3) is in snap-in connection with the base A (6) through a protrusion A (302).

3. The ecological protection of the stepped three-dimensional reinforced abutment and the conical slope according to claim 1, is characterized in that: the top surface of the step type component (3) is higher than the highest water level (10).

4. The ecological protection of the stepped three-dimensional reinforced abutment and the conical slope according to claim 1, is characterized in that: the bottom and two sides of the isolation belt (21) are provided with non-woven fabrics (20).