CN216892453U

CN216892453U - Ecological slope protection system of netting earthing erosion prevention

Info

Publication number: CN216892453U
Application number: CN202123070398.0U
Authority: CN
Inventors: 邵珠杰; 王向阳; 胡金山; 朱婷; 王飞; 田龙飞; 李志成
Original assignee: China Railway First Survey and Design Institute Group Ltd
Current assignee: China Railway First Survey and Design Institute Group Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-07-05
Anticipated expiration: 2031-12-08

Abstract

The utility model relates to a net hanging soil covering erosion-proof ecological slope protection system. The existing skeleton slope protection is of a rigid structure, skeleton void damage and stone block peeling are easy to occur after local scouring, the construction speed is low, and the environmental influence is large. The system comprises a water interception and drainage framework arranged on the side slope, wherein an erosion protection layer and a fiber covering layer are laid above the slope surface of the side slope in the water interception and drainage framework; the erosion shield is comprised of a wire mesh and a polymeric wire mesh bonded to both the upper and lower surfaces of the wire mesh. The method is convenient and fast to construct, safe, reliable, ecological and environment-friendly, has obvious advantages in the aspect of construction speed, can effectively reduce the influence of winter construction and rainy season construction, can beautify the side slope, and can furthest play the function of vegetation protection.

Description

Ecological slope protection system of netting earthing erosion prevention

Technical Field

The utility model belongs to the technical field of engineering slope protection, and particularly relates to a net-hanging soil-covering erosion-preventing ecological slope protection system.

Background

In engineering constructions such as railway, highway, the conventional protection mode of soil slope is the skeleton bank protection, and present common skeleton bank protection divide into and grout slabstone skeleton and concrete skeleton, all have certain technical defect: firstly, the framework slope protection is a rigid structure, and local scouring, framework void destruction and stone block peeling can be frequently caused by uneven settlement of a slope surface, rain scouring or various external special loads; secondly, the framework slope protection construction process is complex, the construction speed is low, and the influence of winter construction and rainy season construction is great; thirdly, the influence on the environment is large; fourthly, the economic benefit is poor.

Disclosure of Invention

The utility model aims to provide a net-hanging soil-covering erosion-preventing ecological slope protection system which at least solves the problems of local scouring, skeleton void damage and stone block peeling in the prior art.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a net-hanging soil-covering erosion-proof ecological slope protection system comprises a water interception and drainage framework arranged on a side slope, wherein an erosion protection layer and a fiber covering layer are laid above the slope surface of the side slope in the water interception and drainage framework;

the erosion shield is comprised of a wire mesh and a polymeric wire mesh bonded to both the upper and lower surfaces of the wire mesh.

According to one embodiment of the utility model, the erosion protection layer is laid below the fiber covering layer, a lower layer of earthing is laid below the erosion protection layer, and an upper layer of earthing is laid between the erosion protection layer and the fiber covering layer.

In another embodiment of the present invention, the erosion protection layer is laid on the fiber covering layer, and an organic fiber layer is laid below the fiber covering layer.

Further, the erosion protection layer is fixed through an anchoring piece, and the anchoring piece is a U-shaped nail and is arranged in a quincunx shape.

Further, the steel wire mesh is a hexagonal double-twisted steel wire mesh.

Further, the drainage framework comprises a flange in the transverse direction of the top of the slope, a foundation in the transverse direction of the bottom of the slope and a drainage ditch vertical to the flange and the foundation.

Furthermore, the upper side and the lower side of the foundation are provided with transverse water retaining edges.

Furthermore, longitudinal water retaining edges are arranged on two transverse sides of the drainage ditch.

Further, the lower layer of the edging is provided with a transverse water retaining edge.

Furthermore, the bottom surface of the foundation is provided with a limiting bulge protruding downwards.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model relates to a slope protection system which is convenient to construct, safe, reliable, ecological, environment-friendly and fast-greening, reduces the using amount of concrete or mortar rubble, has obvious advantages in the aspect of construction speed, has strong applicability to construction conditions, and can effectively reduce the influence of construction in winter and construction in rainy season; moreover, the utility model can realize quick greening, not only can beautify the side slope, but also can exert the function of vegetation protection to the maximum extent; in addition, the utility model can adopt a factory modularization production mode, can effectively reduce the influence on the environment, realize standardization and assembly, obviously reduce the construction and later maintenance cost, and can optimize the economic benefit of the protective structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings of the embodiments can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a slope protection system according to embodiment 1 of the present invention.

FIG. 2 is a detailed view of the erosion shield of the present invention.

Fig. 3 is a schematic view of the slope top anchoring and slope surface composition in embodiment 1 of the present invention.

Fig. 4 is a schematic view of slope bottom anchoring and slope surface composition in embodiment 1 of the present invention.

Fig. 5 is a schematic view of the slope top anchoring and slope surface composition in embodiment 2 of the present invention.

Fig. 6 is a schematic view of the slope bottom anchoring and slope surface composition in embodiment 2 of the present invention.

FIG. 7 is a detailed view of the water intercepting and draining framework of the present invention.

The labels in the figure are:

1-lower layer soil covering, 2-upper layer soil covering, 3-water retaining edge, 4-steel wire mesh, 5-polymer wire mesh, 10-erosion protective layer, 20-fiber covering layer, 30-anchoring piece, 40-water cutting and draining framework and 50-organic matter fiber layer.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In the description of this patent, it is to be understood that the terms "upper," "lower," "longitudinal," "transverse," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and thus should not be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "disposed," "laid-up," and the like are to be construed broadly and may be, for example, fixedly attached, disposed, detachably attached, disposed, or integrally attached and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

The net-hanging soil-covering erosion-preventing ecological slope protection system provided by the utility model can be used for quickly protecting and beautifying a soil slope, can be used for the soil slope of projects such as railways and highways, and can be also applied to similar slope protection projects of other civil engineering. All components can be produced in a factory prefabricating mode, and then are assembled and constructed on site, so that the standard property of the components is improved, the construction speed can be obviously accelerated, and the interference to the environment is reduced.

As shown in figure 1, the system comprises a water interception and drainage framework 40 arranged on a slope, wherein the water interception and drainage framework 40 comprises a flange transverse to the top of the slope, a foundation transverse to the bottom of the slope and a drainage ditch vertical to the flange and the foundation. The drainage ditch is vertically provided with a plurality of channels on the side slope, and the slope surface of the side slope is divided. The water intercepting and draining framework 40 is formed by adopting concrete vertical mold pouring, and the clear distance between the drainage ditches is 10 m.

As shown in fig. 3 and fig. 4 of the embodiment 1, a lower layer of casing soil 1, an erosion protection layer 10 and an upper layer of casing soil 2 are sequentially laid from bottom to top above the slope surface of the slope in the water intercepting and draining framework 40, and a fiber covering layer 20 is laid above the upper layer of casing soil 2. As shown in fig. 2, the erosion shield 10 is composed of a steel mesh 4 and a polymer mesh 5, and the polymer mesh 5 is bonded to the upper and lower surfaces of the steel mesh 4. The steel wire mesh 4 is a hexagonal double-stranded steel wire mesh, and the steel wire is subjected to antiseptic treatment by hot-dip coating of Golgin (5% -aluminum-zinc alloy). The polymer silk screen 5 is an anti-aging high-performance polymer silk screen, can be selected from the existing materials sold in the market, is wound disorderly and is three-dimensional, the anti-aging high-performance polymer silk screen is bonded to the steel wire mesh 4 through a silk drawing and hot bonding process, the continuous anti-aging high-performance polymer silk screen is arranged on the upper surface and the lower surface of the steel wire mesh 4, and the steel wire mesh 4 is positioned inside the anti-aging high-performance polymer silk screen, so that the mesh size of the steel wire mesh 4 can be effectively reduced, and the anti-scouring capability is effectively improved. The fiber covering layer 20 can play a role in greening promotion, can be made of the existing materials sold in the market, and is made of wood fibers and artificial fibers, wherein the fiber covering layer can bear water-retaining matrixes, microporous particles, growth promoters and the like, can be used for sowing vegetation seeds, and can realize greening after production.

As shown in fig. 5 and fig. 6, the erosion protection layer 10 may also be laid on the fiber covering layer 20, and an organic fiber layer 50 is further laid below the fiber covering layer 20, where the organic fiber layer 50 is a covering layer structure formed by winding organic fiber yarns.

As shown in fig. 1, the erosion shield 10 is fixed by means of anchors 30, the anchors 30 being U-shaped staples arranged in a quincunx pattern at a distance of 1m and at least 50cm downward.

The system further comprises water retaining lips 3, arranged at different positions. As shown in fig. 7, the upper and lower sides of the foundation are provided with transverse water retaining rims 3. As shown in fig. 1, longitudinal water retaining rims 3 are provided at both lateral sides of the drainage ditch. As shown in fig. 3, the lower layer of the trim is provided with a transverse water retaining rim 3. All the water retaining edges 3 and the water retaining and draining frameworks 40 construct a complete drainage system, and mortar is needed to be sewn at the two sides and the bottom of the drainage ditch to prevent rainwater from permeating into the side slope. The interval on the drainage ditch is about 100m, and steps are arranged on the slope.

As shown in fig. 4, the bottom surface of the base is provided with a limiting protrusion protruding downwards.

The construction steps of embodiment 1 of the utility model are as follows:

firstly, laying lower layer soil covering 1, leveling a side slope and backfilling 15cm of planting soil, wherein the thickness of the side slope soil covering can be increased in a transverse grooving mode, a dot digging mode and other modes when the side slope with vegetation such as sand and gravel is particularly difficult to grow;

secondly, laying an erosion protection layer 10, wherein the erosion protection layer 10 needs to be laid from top to bottom, the top needs to be anchored below a water interception and drainage framework 40, and the width is stranded by stranded steel wires made of the same material as the steel wire mesh of the erosion protection layer 10; fixing the slope surface by adopting U-shaped nails which are arranged in a quincunx shape at an interval of 1 m;

and thirdly, after the erosion protection layer 10 is laid, covering planting soil with the thickness of 5cm on the erosion protection layer 10, namely upper layer earthing 2, laying a fiber covering layer 20 containing vegetation seeds, and then maintaining.

The construction procedure of example 2 can be referred to the construction procedure of example 1.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the utility model and are not intended to be limiting. For a person skilled in the art to which the utility model pertains, several simple deductions, modifications or substitutions may be made according to the idea of the utility model.

Claims

1. The utility model provides a net earthing erosion prevention ecological slope protection system which characterized in that:

the system comprises a water interception and drainage framework (40) arranged on a side slope, wherein an erosion protection layer (10) and a fiber covering layer (20) are laid above the slope surface of the side slope in the water interception and drainage framework (40);

the erosion protection layer (10) is composed of a steel wire mesh (4) and a polymer wire mesh (5), and the polymer wire mesh (5) is bonded to the upper surface and the lower surface of the steel wire mesh (4).

2. The netting earthing anti-erosion ecological slope protection system according to claim 1, characterized in that:

the erosion protection layer (10) is laid below the fiber covering layer (20), lower layer earthing (1) is further laid below the erosion protection layer (10), and upper layer earthing (2) is further laid between the erosion protection layer (10) and the fiber covering layer (20).

3. The netting earthing anti-erosion ecological slope protection system according to claim 1, characterized in that:

the erosion protection layer (10) is laid above the fiber covering layer (20), and an organic fiber layer (50) is further laid below the fiber covering layer (20).

4. The net-hanging soil-covering erosion-preventing ecological slope protection system as claimed in claim 2 or 3, wherein:

the erosion protection layer (10) is fixed through an anchoring piece (30), and the anchoring piece (30) is a U-shaped nail and is arranged in a quincunx shape.

5. The netting earthing anti-erosion ecological slope protection system according to claim 4, characterized in that:

the steel wire mesh (4) is a hexagonal double-stranded steel wire mesh.

6. The netting earthing anti-erosion ecological slope protection system according to claim 5, characterized in that:

the water intercepting and draining framework (40) comprises a flange in the transverse direction of the top of the slope, a foundation in the transverse direction of the bottom of the slope and a drainage ditch vertical to the flange and the foundation.

7. The netting earthing anti-erosion ecological slope protection system according to claim 6, characterized in that:

and the upper side and the lower side of the foundation are provided with transverse water retaining edges (3).

8. The netting earthing anti-erosion ecological slope protection system according to claim 7, characterized in that:

and longitudinal water retaining edges (3) are arranged on the two transverse sides of the drainage ditch.

9. The netting earthing anti-erosion ecological slope protection system according to claim 8, characterized in that:

the lower layer of the edging is provided with a transverse water retaining edge (3).

10. The netting earthing anti-erosion ecological slope protection system according to claim 9, characterized in that:

the bottom surface of the foundation is provided with a limiting bulge protruding downwards.