Port channel slope protection structure
By adopting multi-layer soil layer and dense grid design in the port waterway slope protection structure, the problems of substrate soil erosion and insufficient ecology during grass planting of traditional slope protection structures are solved, and the effects of soil conservation and vegetation growth are achieved.
Patent Information
- Application Number
- CN202420161143.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-23
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-01-23
AI Technical Summary
Traditional slope protection structures have shortcomings in taking into account both safety and ecology. The substrate soil is easily lost or grass is not easy to grow when planting grass.
A port waterway slope protection structure was designed, including slope protection body, structural reinforcement layer, gabion, planting mesh frame and multi-layer soil layer. Soil loss was reduced through PLA non-woven fabric layer and degradable geomesh layer, and dense mesh was used to reduce soil loss. and gravel layers provide growth space.
It realizes the maintenance of soil and vegetation, and provides a slope protection solution that is both safe and ecological.
Smart Images
Figure CN222332595U_ABST
Abstract
Description
Technical Field
[0001] The utility model provides a port channel slope protection structure, which relates to the field of slope protection structures. Background Art
[0002] In the field of water transportation, channel slope refers to the transition area between the water body and the shoreline. The protection of channel slope is crucial to the safety and smoothness of the channel. The materials used in traditional bank protection projects are mainly divided into two categories: stone and concrete materials, such as dry block stone, mortar block stone, Reno pad, soil-rock mesh pad, cast-in-place concrete slab, concrete vegetation block, etc. The traditional rigid slope protection isolates the connection between the soil and the water body, has poor permeability, difficult plant growth, poor ecology, and poor adaptability to slope deformation. Wire mesh gabion mat slope protection is a new type of slope protection structure. In 2007, wire mesh gabion mat slope protection was used for the first time in the Majiazui channel regulation project in the middle reaches of the Yangtze River. It has the characteristics of good flexibility, good integrity and good permeability.
[0003] As the country's requirements for environmental protection and ecology continue to increase, it is urgent to explore slope protection structures that are both safe and ecological. There are two ways to achieve ecological properties of wire mesh gabion slope protection structures. One is to place the matrix soil for grass planting at the bottom of the wire mesh gabion, and the other is to place the matrix soil at the bottom of the slope cushion. The first method is easy for grass to grow but the matrix soil is easy to lose. The second method has a strong protection for the matrix soil, but it is not easy for grass to grow. For this reason, we propose a port channel slope protection structure. Utility Model Content
[0004] In order to solve the above problems, the utility model provides a port channel slope protection structure, which has a good soil retention effect and is conducive to the growth of vegetation.
[0005] The utility model provides a port channel slope protection structure, comprising a slope protection body and gabions sequentially laid on the slope protection body, wherein a structural reinforcement layer is laid on the surface of the slope protection body, the gabion comprises a top cover net, a bottom surface net and a side net twisted between the top cover net and the bottom surface net by steel wires, the side net comprises an upper section net and a lower section net, the mesh size of the upper section net is larger than the mesh size of the lower section net, the mesh size of the bottom surface net is the same as the mesh size of the lower section net, a planting net frame is arranged inside the gabion, the planting net frame is a rectangular frame structure with an opening at the top, a PLA non-woven fabric layer, a matrix soil layer, a grass seed layer, a nutrient soil layer and a degradable geonet layer are laid from bottom to top in the planting net frame, a second crushed stone layer and a first crushed stone layer are laid above the planting net frame, and the crushed stone particle size of the first crushed stone layer is larger than the crushed stone particle size of the second crushed stone layer.
[0006] Preferably, the crushed stone particle size of the first crushed stone layer is 10 to 25 cm.
[0007] Preferably, the crushed stone particle size of the second crushed stone layer is 4 to 8 cm.
[0008] Preferably, the mesh size of the upper net is 3 times that of the lower net, and the mesh size of the lower net is 3 to 6 times that of the planting net frame.
[0009] Preferably, the PLA non-woven fabric layer has the same surface area as the inner surface of the planting frame and fits completely therewith.
[0010] Preferably, the structural reinforcement layer comprises polyurethane gravel.
[0011] Beneficial effects of the utility model:
[0012] The utility model provides a port channel slope protection structure, which can avoid the loss of the inner matrix soil layer by laminating a PLA non-woven fabric layer with equal area on the inner side of the planting net frame, reduce the loss of the nutrient soil layer by covering the degradable geonet layer on the surface of the nutrient soil layer, and further reduce the soil loss of the nutrient soil layer by laying a second crushed stone layer with a smaller particle size on the top of the degradable geonet layer;
[0013] Gaps can be formed between the gravel in the first gravel layer and the second gravel layer, providing growth space for vegetation. In addition, due to the complex gaps between the gravel and the rough surface of the gabion itself, mud and sand are easy to fall and accumulate in the gabion, which is also conducive to the growth of vegetation. The sparse and dense setting of the side net is conducive to the preservation of mud and sand in the gabion. The planting net frame adopts a relatively dense grid, which is conducive to the maintenance of the inner soil. Therefore, this slope protection mechanism has a good soil retention effect and is conducive to the growth of vegetation. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a port channel slope protection structure.
[0015] Figure 2 The utility model is a schematic diagram of a gabion structure of a port channel slope protection structure.
[0016] Figure 3 This is a cross-sectional view of a gabion in use for a port channel slope protection structure according to the utility model.
[0017] Figure 4 This is an enlarged view of point A of a port channel slope protection structure of the utility model.
[0018] (1. Slope protection body; 2. Structural reinforcement layer; 3. Gabion; 4. Top cover net; 5. Side net; 6. Bottom net; 7. Upper net; 8. Lower net; 9. First gravel layer; 10. Second gravel layer; 11. Planting net frame; 12. Degradable geonet layer; 13. Nutrition soil layer; 14. Grass seed layer; 15. Matrix soil layer; 16. PLA non-woven fabric layer) DETAILED DESCRIPTION
[0019] The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.
[0020] Reference Figures 1 to 4 The utility model provides a port channel slope protection structure, including a slope protection body 1 and gabions 3 sequentially laid on the slope protection body 1, the surface of the slope protection body 1 is paved with a structural reinforcement layer 2, and the structural reinforcement layer 2 includes polyurethane crushed stone. Specifically, the polyurethane crushed stone is laid on the surface of the slope protection body 1 in combination with ordinary crushed stone. The polyurethane crushed stone utilizes the excellent physical, mechanical and bonding properties of polyurethane to strengthen and integrate ordinary crushed stone blocks into a solid, stable and open overall structure, while forming a rigid slope protection structure on the surface of the slope protection body 1, it has good permeability and ecological properties.
[0021] Furthermore, the gabion 3 described in the utility model includes a top cover net 4, a bottom net 6 and a side net 5 twisted between the top cover net 4 and the bottom net 6 by steel wires. The gabion 3 is a split structure and needs to be twisted and assembled by steel wires when in use. Adjacent gabions 3 are also connected and fixed by steel wires.
[0022] Furthermore, the side net 5 in the utility model includes an upper net 7 and a lower net 8, the mesh size of the upper net 7 is larger than the mesh size of the lower net 8, the mesh size of the bottom net 6 is the same as the mesh size of the lower net 8, and a planting net frame 11 is arranged on the inner side of the gabion 3, and the planting net frame 11 is a rectangular frame structure with an open top, and a PLA non-woven fabric layer 16, a matrix soil layer 15, a grass seed layer 14, a nutrient soil layer 13 and a degradable geonet layer 12 are laid from bottom to top in the planting net frame 11, and the PLA non-woven fabric layer 16 has the same surface area as the inner surface of the planting net frame 11 and is completely fitted thereto. Specifically, a planting grid frame 11 is placed at the bottom of the gabion 3, and a PLA non-woven fabric layer 16 is attached to the inner side of the planting grid frame 11 in an equal area. The PLA non-woven fabric can prevent the loss of the inner matrix soil layer 15. The nutrient soil layer 13 is used to provide nutrients for the grass seed layer 14. The degradable geonet layer 12 covering the surface of the nutrient soil layer 13 is fixed to the surface of the planting grid frame 11 by steel wire, which can reduce the loss of the nutrient soil layer 13.
[0023] Furthermore, the second crushed stone layer 10 and the first crushed stone layer 9 are laid on the top of the planting net frame 11 in the utility model, the crushed stone particle size of the first crushed stone layer 9 is larger than the crushed stone particle size of the second crushed stone layer 10, the crushed stone particle size of the first crushed stone layer 9 is 10-25cm, and the crushed stone particle size of the second crushed stone layer 10 is 4-8cm. Specifically, the first crushed stone layer 9 and the second crushed stone layer 10 are both made of pebbles, and a layer of pebbles with a smaller particle size is laid on the top of the planting net frame 11, which further reduces the soil loss inside the planting net frame 11, and the gaps formed between the crushed stones provide a growth space for the grass. At the same time, due to the complex gaps between the crushed stones and the rough surface of the gabion 3 itself, mud and sand are easy to fall and accumulate in the gabion 3, which is also conducive to the growth of vegetation.
[0024] Furthermore, the mesh size of the upper net 7 in the utility model is 3 times that of the lower net 8, and the mesh size of the lower net 8 is 3 to 6 times that of the planting net frame 11. Specifically, the sparse upper and dense lower arrangement of the side net 5 is conducive to preserving the silt deposited in the gabion 3, and the planting net frame 11 adopts a relatively dense mesh, which is conducive to maintaining the soil quality.
[0025] Working principle: When the utility model is in use, a structural reinforcement layer 2 is laid on the slope protection body 1 to stabilize the overall structure of the slope protection body 1, and at the same time has good permeability and ecology, and then the gabions 3 are laid, and the adjacent gabions 3 are fixed together with steel wires, and a planting mesh frame 11 is placed in the gabions 3. The PLA non-woven fabric layer 16, the matrix soil layer 15, the grass seed layer 14, the nutrient soil layer 13 and the degradable geonet layer 12 are laid in the planting mesh frame 11 in turn, and then the second crushed stone layer 10 and the first crushed stone layer 9 are filled in the gabions 3, and finally the top cover mesh 4 is twisted on the top of the gabions 3 by steel wires.
[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A port channel slope protection structure, comprising a slope protection body and gabions sequentially laid on the slope protection body, characterized in that: The surface of the slope protection body is paved with a structural reinforcement layer, the gabion includes a top cover mesh, a bottom mesh and a side mesh twisted between the top cover mesh and the bottom mesh by steel wires, the side mesh includes an upper mesh and a lower mesh, the mesh size of the upper mesh is larger than the mesh size of the lower mesh, the mesh size of the bottom mesh is the same as the mesh size of the lower mesh, a planting mesh frame is arranged on the inside of the gabion, the planting mesh frame is a rectangular frame structure with an opening at the top, a PLA non-woven fabric layer, a matrix soil layer, a grass seed layer, a nutrient soil layer and a degradable geonet layer are laid from bottom to top in the planting mesh frame, a second crushed stone layer and a first crushed stone layer are laid above the planting mesh frame, and the crushed stone particle size of the first crushed stone layer is larger than the crushed stone particle size of the second crushed stone layer.
2. A port channel slope protection structure according to claim 1, characterized in that: The crushed stone particle size of the first crushed stone layer is 10 to 25 cm.
3. A port channel slope protection structure according to claim 1, characterized in that: The crushed stone particle size of the second crushed stone layer is 4 to 8 cm.
4. A port channel slope protection structure according to claim 1, characterized in that: The mesh size of the upper net is 3 times that of the lower net, and the mesh size of the lower net is 3 to 6 times that of the planting net frame.
5. The port channel slope protection structure according to claim 1 is characterized by: The PLA non-woven fabric layer has the same area as the inner surface of the planting net frame and is completely fitted thereto.
6. A port channel slope protection structure according to claim 1, characterized in that: The structural reinforcement layer includes polyurethane crushed stone.