Modular cement blanket ecological slope protection structure

Abstract

The utility model relates to a modular cement blanket ecological slope protection structure, and belongs to the field of slope supporting. The permeable layer is formed by filling the geogrid with gravels or broken stones; the cement blankets are arranged above the geogrid, a plurality of fixing holes are formed in the positions, close to the edges of the cement blankets, of the cement blankets, and the fixing holes of every two adjacent cement blankets coincide while the two adjacent cement blankets are connected through a child-mother connecting piece; the U-shaped nails are inserted into the two overlapped fixing holes of the cement blankets to fix the adjacent cement blankets, the multiple cement blankets are connected through the hook-and-loop fasteners or the hasp belts, meanwhile, the cement blankets are fixed to the slope surface in cooperation with the U-shaped nails, the operation that a sealant is smeared at the sewing position at present is avoided, and particularly the step that the sealant needs to be dried is avoided; the purpose of quick connection is achieved, the construction time of the cement blanket is shortened, and the construction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of slope support, especially to a modular cement blanket ecological slope protection structure. BACKGROUND

[0002] Cement blanket, also known as concrete canvas, is a soft cloth impregnated with cement, which will harden into a thin waterproof and fireproof durable concrete layer when it meets water. Cement blanket is gradually widely used in river, highway slope and mine repair due to its strong impact resistance and compression resistance and simple and quick construction. The current cement blanket needs to be laid on site during construction, and joint treatment is needed during laying. The current cement joint treatment mostly applies sealant at the joint, and then uses stainless steel screws to fix the two cement blankets together. However, it is troublesome and low in efficiency to apply sealant, especially the applied sealant needs to be dried for a certain period of time to ensure that dislocation or position movement does not occur during construction, which further reduces the construction efficiency. SUMMARY

[0003] The current cement blanket needs joint treatment during construction, and the current cement joint mostly applies sealant at the joint, and then uses stainless steel screws to fix the two cement blankets together. However, this way is troublesome and low in efficiency, especially the applied sealant needs to be dried, which further reduces the construction efficiency. The present application designs a modular cement blanket ecological slope protection structure, which specifically adopts the technical scheme of:

[0004] A modular cement blanket ecological slope protection structure, comprising:

[0005] A geogrid;

[0006] A water permeable layer formed by filling sand or gravel in the geogrid;

[0007] A plurality of cement blankets, each cement blanket is arranged above the geogrid, each cement blanket is provided with a plurality of fixing holes near its edge, and the fixing holes of two adjacent cement blankets coincide when the two adjacent cement blankets are connected by a primary-secondary connecting piece;

[0008] A U-shaped nail inserted into two coinciding fixing holes of the cement blanket to fix the adjacent cement blankets.

[0009] Preferably, the primary-secondary connecting piece is a magic tape or a hasp.

[0010] Preferably, each cement blanket is further provided with a plurality of planting holes.

[0011] Preferably, a concrete prefabricated groove is arranged on the upper edge of the slope surface, a cross beam is placed in the concrete prefabricated groove, and the upper edge of the cement blanket is laid in the concrete prefabricated groove and pressed by the cross beam.

[0012] Preferably, the slope surface is further provided with a water guide ditch, the water guide ditch is arranged longitudinally and is located below the geogrid, and the water guide ditch is provided with a water guide pipe.

[0013] Preferably, the water guide ditch and the water guide pipe are provided with a plurality of water guide ditches arranged in a horizontal direction.

[0014] Preferably, the slope surface is further provided with a water retaining ridge, the water retaining ridge is arranged horizontally and is located below the bottom end of the water guide pipe.

[0015] Preferably, the water guide pipe is a PVC pipe.

[0016] The utility model discloses a cement blanket is fixed on the slope surface through magic tape or hasp belt, avoids the operation of the current towards the suture and daubs sealant, especially avoids the step that sealant needs to dry, realizes the purpose of quick connection, shortens the time of cement blanket construction, improves construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the perspective view of the utility model after the cement blanket is opened, and

[0018] Fig. 2 It is the perspective view of the utility model after the cement blanket is laid.

[0019] In the drawing, 1 is a geogrid, 2 is a slope surface, 3 is a water-permeable layer, 4 is a concrete prefabricated groove, 5 is a crossbeam, 6 is a water guide ditch, 7 is a water guide pipe, 8 is a water retaining ridge, 9 is a cement blanket, 10 is a planting hole, 11 is a U-shaped nail, 12 is a primary-secondary connecting piece, and 13 is a fixing hole. DETAILED DESCRIPTION

[0020] To clearly illustrate the technical features of the present application, the utility model is described in detail below through specific implementation modes and in combination with the drawings.

[0021] In addition, in the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0022] As Figs. 1-2As shown, a modular cement blanket ecological slope protection structure includes a geogrid 1, which can be a plastic geogrid 1. The geogrid 1 is filled with gravel or crushed stone to form a permeable layer 3. A cement blanket 9 is laid on top of the geogrid 1 to protect the slope surface 2. Since the slope surface 2 has varying areas, multiple cement blankets 9 need to be spliced ​​together to cover the entire slope surface 2. Therefore, to facilitate and quickly connect multiple cement blankets 9, adjacent cement blankets 9 are connected by a male-female connector 12. The male-female connector 12 preferably uses Velcro or hook-and-loop fasteners. The Velcro or hook-and-loop fasteners are located at the edge of each cement blanket 9, allowing for quick connection between adjacent cement blankets 9 using Velcro or hook-and-loop fasteners, avoiding the reduced connection efficiency caused by traditional sealant application. In addition, multiple fixing holes 13 are provided on the edge of each cement blanket 9. When connected by Velcro or snap fasteners, the fixing holes 13 on two adjacent cement blankets 9 overlap vertically. Then, U-shaped nails 11 are inserted into the two overlapping fixing holes 13 and inserted into the slope body to further fix the cement blanket 9.

[0023] Furthermore, in order to balance engineering slope protection and ecological restoration, multiple planting holes 10 are provided in each cement blanket 9. The planting holes 10 are filled with soil, water-retaining agent and grass seeds. After the cement blanket 9 is laid, water is sprayed into the planting holes 10. The cement blanket 9 activates the cement hardening, forming vegetation growth points, and at the same time promotes the germination of grass seeds. The root system and the cement blanket 9 together enhance the slope 2's resistance to erosion.

[0024] Furthermore, in order to avoid the problem of the upper edge of the cement blanket 9 sliding down due to the inclination of the slope 2, a precast concrete trough 4 is provided on the upper edge of the slope 2. The precast concrete trough 4 is set horizontally, and a crossbeam 5 is placed in the precast concrete trough 4. The upper edge of the cement blanket 9 is laid in the precast concrete trough 4 and pressed tightly by the crossbeam 5.

[0025] Furthermore, in order to drain the water from the slope 2 in a timely manner, a drainage ditch 6 is provided on the slope 2. The drainage ditch 6 is arranged longitudinally and located below the geogrid 1. A drainage pipe 7 is provided in the drainage ditch 6. In order to avoid corrosion of the drainage pipe 7, the drainage pipe 7 is made of PVC pipe.

[0026] Furthermore, in order to accommodate the area of ​​slope 2, multiple drainage ditches 6 and drainage pipes 7 are provided, with the multiple drainage ditches 6 spaced apart in the horizontal direction.

[0027] Furthermore, a water-retaining sill 8 is provided at the bottom of the slope 2. The water-retaining sill 8 is horizontally set and located below the bottom end of the water guide pipe 7. The water-retaining sill 8 connects the water guide pipe 7 to the external drainage system to drain the water in a timely manner.

[0028] The specific embodiments above cannot be used as a limitation to the protection scope of the utility model, and any alternative improvement or transformation made by the skilled in the art to the utility model embodiments falls within the protection scope of the utility model.

[0029] The parts not described in the utility model are the common technology of the skilled in the art.

Claims

1. A modular cement blanket ecological slope protection structure, characterized in that, include: Geogrid; A permeable layer, wherein the permeable layer is formed by filling the geogrid with sand or gravel; Multiple cement blankets are arranged on top of the geogrid. Each cement blanket has multiple fixing holes near its edge. When two adjacent cement blankets are connected by a male-female connector, the fixing holes of the two cement blankets overlap. U-shaped nails are inserted into two overlapping fixing holes of the cement blanket to fix adjacent cement blankets.

2. The modular cement blanket ecological slope protection structure according to claim 1, characterized in that, The female connector is a Velcro or Hook and loop fastener.

3. The modular cement blanket ecological slope protection structure according to claim 1, characterized in that, Each of the cement blankets also has multiple planting holes.

4. A modular cement blanket ecological slope protection structure according to claim 1 or 3, characterized in that, A precast concrete trough is provided on the edge of the slope, and a crossbeam is placed in the precast concrete trough. The upper edge of the cement blanket is laid in the precast concrete trough and pressed down by the crossbeam.

5. The modular cement blanket ecological slope protection structure according to claim 1, characterized in that, The slope is also provided with drainage ditches, which are arranged longitudinally and located below the geogrid, and drainage pipes are provided in the drainage ditches.

6. The modular cement blanket ecological slope protection structure according to claim 5, characterized in that, Multiple water guide channels and water guide pipes are provided, and the multiple water guide channels are spaced apart in the horizontal direction.

7. A modular cement blanket ecological slope protection structure according to claim 5 or 6, characterized in that, A water-retaining sill is provided at the bottom of the slope, and the water-retaining sill is horizontally positioned and located below the bottom end of the water guide pipe.

8. The modular cement blanket ecological slope protection structure according to claim 5, characterized in that, The water pipe is a PVC pipe.

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