Slope protection device capable of preventing stormy waves

Abstract

The utility model relates to a slope protection device capable of preventing stormy waves, which is used for being arranged on a slope surface for protection and comprises protection cloth, a slope surface protection part, an anchoring foot part and an anchoring groove, each of the slope protection part and the anchoring foot part comprises a peripheral anchoring steel wire mesh, a filling material filled in the anchoring steel wire mesh and leakage-proof cloth arranged between the anchoring steel wire mesh and the filling material, the filling material comprises stones with various particle sizes, the anchoring groove is excavated in the ground at the bottom of the slope, the protection cloth is laid on the slope, and the leakage-proof cloth is arranged between the anchoring steel wire mesh and the filling material. The anchoring foot part is arranged in the anchoring groove, the slope protection part is laid on the protection cloth, and the anchoring steel wire mesh at the bottom end of the slope protection part is fixedly connected with the anchoring steel wire mesh of the anchoring foot part.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic engineering, in particular to a slope protection device capable of preventing wind and waves. Background Art

[0002] In hydraulic engineering, with the increasing demand for land reclamation, the stability of land embankments is related to the construction period, cost and safety of the entire land formation. During the construction process, the land embankment is generally built on the composite foundation with high bearing capacity after the soft soil is reinforced by underwater foundation treatment. Due to the influence of factors such as water filling speed, ship machinery and equipment, wind and wave surge, and the organizational and coordination constraints of foundation treatment, the formation of the main embankment is often affected to a certain extent. Therefore, before the main embankment is formed, temporary cofferdams (also called "sub-embankments") are often built on the land within a certain range of the main embankment when the land is filled out of the water. The temporary cofferdam is built directly on the filled soil, mainly in the form of bagged sand stacking. The lower soft foundation is generally not specially reinforced, and plastic drainage boards are appropriately inserted to achieve the preloading effect through the upper embankment load, timely discharge the excess pore water pressure, and accelerate the consolidation of the soft foundation. Temporary cofferdams can isolate waters and serve as temporary transportation channels to facilitate the transportation of construction materials and equipment. In addition, they can provide a stable construction platform. During the reinforcement of the main embankment and the lower soft foundation, the temporary cofferdam itself can be used as a temporary or permanent breakwater to reduce the impact of waves on the construction area. During the typhoon season, the wind and waves in the open sea will impact the water-facing slope of the temporary cofferdam, threatening the safety of the temporary cofferdam. Therefore, the water-facing slope of the temporary cofferdam needs to be protected.

[0003] Existing ordinary slope protection structures are difficult to withstand the impact of wind and waves, especially the impact of wind and waves in typhoon weather. Some slope protection structures specially designed for the coast, such as a solid and impermeable rockfill dam provided by the invention patent with application number CN202211314822.8, and an ecological seawall slope protection structure and construction method provided by the invention patent with application number CN202311029790.1, are generally used for a long time and have problems such as complex structure and inconvenient construction, which are difficult to meet the needs of temporary cofferdams. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the utility model is to provide a slope protection device capable of preventing wind and waves, which can protect the slope surface from being damaged by the impact of wind and waves, has a simple structure, fast construction, low cost, and is convenient for construction and dismantling.

[0005] To achieve the above-mentioned purpose, the utility model provides a slope protection device capable of preventing wind and waves, which is used to be set on the slope for protection, including a protective cloth, a slope protection part, an anchoring foot and an anchoring groove, the slope protection part and the anchoring foot both include an outer anchor steel wire mesh, a filler filled in the anchor steel wire mesh, and a leak-proof cloth arranged between the anchor steel wire mesh and the filler, the filler includes stones of various particle sizes, the anchoring groove is excavated on the ground at the bottom of the slope, the protective cloth is laid on the slope, the anchoring foot is arranged in the anchoring groove, the slope protection part is laid on the protective cloth, and the anchor steel wire mesh at the bottom end of the slope protection part is fixedly connected to the anchor steel wire mesh of the anchoring foot.

[0006] Furthermore, the filler is graded from stones of various particle sizes.

[0007] Furthermore, the stones in the filler include stone flakes or pebbles, and the filling void ratio of the stones in the filler is not greater than 30%.

[0008] Furthermore, the stone particle size in the filler (5) is 100-250 mm, and the maximum bulk density of the filler is 20 kN / m 3 .

[0009] Furthermore, the protective cloth and the leak-proof cloth are made of high-strength polyethylene material.

[0010] Furthermore, the diameter of the steel wire of the anchor wire mesh is 3.5-4.0 mm, and the surface of the steel wire has an aluminum coating, and a PVC material coating is provided on the aluminum coating.

[0011] Furthermore, the equivalent diameter of the mesh in the anchor wire mesh is 50 to 80 mm.

[0012] Furthermore, the anchor wire mesh comprises a plurality of mesh sheet units and connecting steel wires. The plurality of mesh sheet units are assembled into the anchor wire mesh, and adjacent mesh sheet units are bound together by connecting steel wires.

[0013] Furthermore, the slope is the slope on the seaward side of the temporary cofferdam.

[0014] Furthermore, a one-way geogrid is provided in the soil below the temporary cofferdam, the anchoring groove is excavated to the one-way geogrid, the lower end of the protective cloth extends into the anchoring groove and is connected to the one-way geogrid, and the anchoring foot is pressed on the one-way geogrid.

[0015] As described above, the slope protection device involved in the utility model has the following beneficial effects:

[0016] 1. The protective cloth plays the role of inner layer protection and stabilizing the slope protection part. The anchor foot is buried in the ground, which can stabilize the slope protection part well. The slope protection part is composed of multiple layers of materials. By filling the wire mesh with well-graded stones, a stable slope protection structure is formed. The filling material has a certain water permeability, which can protect the slope from the impact and damage of wind and waves. The overall stability of the temporary cofferdam can be enhanced by combining rigidity and flexibility to adapt to the phenomenon of deformation and rebound, prevent the temporary cofferdam from being damaged, and have the function of typhoon prevention and flood control.

[0017] 2. The slope protection device has a simple structure and is easy to install and disassemble. It can be conveniently used for the protection of short-term dams or temporary cofferdams.

[0018] 3. The slope protection part and anchor foot adopt modular design, which is convenient for operation, assembly and disassembly on site. Stone materials can be obtained on site, and the construction process is fast and simple. Compared with traditional designs, it has lower construction and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the slope protection device of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the slope protection part and the anchoring foot in the utility model.

[0021] Figure 3 for Figure 2 AA section view in.

[0022] Figure 4 It is a schematic structural diagram of the mesh sheet unit of the anchor wire mesh in the utility model.

[0023] Figure 5 The utility model is a schematic structural diagram of a slope type slope protection part.

[0024] Figure 6 It is a structural schematic diagram of a stepped slope protection part in the utility model.

[0025] Figure 7 The utility model is a schematic diagram of the installation of a stepped slope protection part.

[0026] Description of Figure Numbers

[0027] 1 Protective cloth

[0028] 2 Slope protection department

[0029] 3 Anchoring feet

[0030] 4 Anchor wire mesh

[0031] 41 mesh sheet units

[0032] 5 Filling

[0033] 6. Leak-proof cloth

[0034] 7 Temporary cofferdam

[0035] 8 Ground

[0036] 9 Unidirectional Geogrid DETAILED DESCRIPTION

[0037] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0038] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0039] See also Figures 1 to 7 The utility model provides a slope protection device capable of preventing wind and waves, which is used to be set on the slope for protection, including a protective cloth 1, a slope protection part 2, an anchoring foot 3 and an anchoring groove. The slope protection part 2 and the anchoring foot 3 both include a peripheral steel wire mesh 4, a filler 5 filled in the steel wire mesh 4, and a leak-proof cloth 6 arranged between the steel wire mesh 4 and the filler 5. The filler 5 includes stones of various particle sizes. The anchoring groove is excavated on the ground 8 at the bottom of the slope, the protective cloth 1 is laid on the slope, the anchoring foot 3 is arranged in the anchoring groove, the slope protection part 2 is laid on the protective cloth 1, and the steel wire mesh 4 at the bottom end of the slope protection part 2 is fixedly connected to the steel wire mesh 4 of the anchoring foot 3.

[0040] In the wind and wave protection device of the utility model, the protective cloth 1 is laid on the slope surface. On the one hand, it plays a role in protecting the slope surface from being directly washed by water passing through the slope protection part 2. On the other hand, it can fit well with the slope surface and has greater friction. At the same time, when the slope protection part 2 is laid on the protective cloth 1, the two can also have a larger contact area and friction, which can increase the friction of the slope protection part 2, thereby facilitating the stability of the slope protection part 2 on the slope surface and reducing the risk of the slope protection part 2 sliding down. Especially when it is used on the slope surface of a temporary cofferdam 7, since the temporary cofferdam 7 is mainly in the form of sand stacking, if the slope protection part 2 is directly laid on the slope surface of the temporary cofferdam 7, there will be problems of small contact area and poor stability. The slope protection part 2 can be effectively stabilized by the protective cloth 1. The slope protection part 2 is pressed on the slope by gravity, and the wire mesh 4 at its bottom end is fixedly connected to the wire mesh 4 of the anchor foot 3. The anchor foot 3 is buried in the ground 8 at the bottom of the slope. The anchor foot 3 is in close contact with the side wall of the anchor groove. The anchor foot 3 plays the role of anchoring the slope protection part 2 to ensure the stability of the slope protection part 2.

[0041] In the utility model, the slope protection part 2 plays a major role in slope protection. The slope protection part 2 is composed of a composite of multiple layers of materials. The outer steel wire mesh 4 has high strength. The steel wire mesh 4 can well accommodate the filler 5 inside and stabilize the shape and structure of the slope protection part 2. It is not easy to be damaged under the impact of wind and waves. The anti-leakage cloth 6 has good impact resistance and durability. On the one hand, it prevents the stones of the filler 5 from leaking out of the mesh of the steel wire mesh 4, and on the other hand, it reduces the direct impact of wind and waves on the stones. The filler 5 is composed of stones of various particle sizes, and has gaps inside, allowing water to flow through, reducing the pressure of water flow on the structure, and at the same time is conducive to the replenishment of groundwater. The slope protection part 2 can play a good role in preventing wind and waves.

[0042] The slope protection part 2 and the anchor foot 3 can be constructed on site. After the anchor groove is excavated, the wire mesh 4 is woven, the leak-proof cloth 6 is laid, and then stones are filled to form the filling material 5. The installation and disassembly construction are convenient, and it can be applied to the slope of short-term water conservancy facilities such as temporary cofferdams 7.

[0043] See also Figures 1 to 7 The present invention is further described below with specific embodiments:

[0044] As a preferred design, in this embodiment, the filler 5 is composed of graded stones of various particle sizes, wherein gradation refers to the combination of different coarse and fine particle sizes in a certain proportion to achieve a higher degree of density. In this application, the filling stones should be selected from well-graded blocks, and the particle size of the stones gradually increases from the outside to the inside (the side close to the slope). Preferably, the stones in the filler 5 can be slabs or pebbles. The filling porosity of the stones in the filler 5 is not more than 30% to facilitate water penetration. Furthermore, the particle size of the stones in the filler 5 is 100-250 mm, and the maximum bulk density of the filler 5 is 20 kN / m 3 , avoiding the slope protection part 2 being too heavy, and ensuring the protection effect. The filling material 5 obtained by stone grading preferably reaches the compressive strength of hard rock or gravel above MU30.

[0045] As a preferred design, in this embodiment, the material of the protective cloth 1 and the leak-proof cloth 6 is high-strength polyethylene material, which has good impact resistance and durability, and can well resist the wave impact brought by typhoons. In addition, the protective cloth 1 and the leak-proof cloth 6 can also use existing conventional geotextiles or non-woven fabrics, which are required to have appropriate toughness and strength. Preferably, the protective cloth 1 is laid in two layers, and the weight of the protective cloth 1 is 400g / m 2 , thickness is about 1.5m.

[0046] As a preferred design, in this embodiment, the wire diameter of the steel mesh 4 is 3.5-4.0 mm, and 3.9 mm is preferred. Low-carbon steel wire with special anti-corrosion treatment is used to ensure that the steel mesh 4 has good structural strength. The surface of the steel wire has an aluminum coating, and the aluminum coating contains 5.5% Al, Zn alloy and rare earth, wherein the Al content is greater than 4.7%, and the Zn content needs to be ≥260g / m 2 , and a PVC material coating is provided on the aluminum-plated layer, thereby effectively reducing the corrosion of the steel mesh 4 by seawater and preventing aging. Preferably, the equivalent diameter of the mesh of the steel mesh 4 is 50-80 mm, which is smaller than the particle size of the filled stone.

[0047] As a preferred design, in this embodiment, the wire mesh 4 includes a plurality of mesh sheet units 41 and connecting steel wires. The plurality of mesh sheet units 41 are assembled into the wire mesh 4, and the adjacent mesh sheet units 41 are cross-bound by connecting steel wires in an eight-shaped pattern, and the connecting steel wires are the same as the steel wires of the wire mesh 4. Figure 4, including a plurality of hexagonal meshes, the steel wire is twisted in a single-twist and double-twist alternating manner to make a mesh sheet unit 41, and the mesh sheet units 41 are also twisted in a single-twist and double-twist alternating manner when they are tied together by connecting steel wires, thereby ensuring the structural strength of the steel mesh 4. The steel mesh 4 is assembled by assembling a plurality of mesh sheet units 41, and adopts a modular design. The mesh sheet units 41 can be pre-made, convenient for transportation, and can be flexibly assembled on site according to actual needs. It is easy to assemble and disassemble quickly to meet different engineering requirements.

[0048] The structural shape of the slope protection part 2 in the utility model can be set according to the shape of the slope. When the slope is a relatively flat slope, a slope-type slope protection part 2 is used. Figure 1 and Figure 2 As shown, the slope protection part 2 is an inclined floor-like structure as a whole, so as to fit the slope well. In addition, the bottom of the slope protection part 2 can be connected to the side of the anchor foot 3, see Figure 2 , or it may be connected to the top surface of the anchoring foot 3, see Figure 5 When the slope is in a stepped shape, the slope protection part 2 is also configured in a stepped shape to fit the slope well. Figure 6 and Figure 7 .

[0049] In the present invention, the slope protection part 2 is mainly pressed against the slope surface by its own gravity, and the lower end is fixed by the anchoring foot 3. In addition, a fixing mechanism can also be provided on the upper edge and both side edges of the slope protection part 2, and the fixing mechanism is inserted into the slope soil and connected to the slope protection part 2 by crimping or binding, so as to assist in fixing the slope protection part 2.

[0050] The slope protection device of the utility model can be applied to various dam structures or shore slopes of oceans and lakes. The slope protection device can especially well meet the needs of temporary cofferdams 7 for typhoon prevention and flood control. Figure 1 The slope protection device is arranged on the slope of the sea side of the temporary cofferdam 7. Since the temporary cofferdam 7 is made of stacked bagged sand, its slope surface is usually uneven. By laying a protective cloth 1 on the slope, the slope protection part 2 can be well placed. A one-way geogrid 9 is generally arranged below the temporary cofferdam 7. The one-way geogrid 9 is arranged in the soil at the location of the temporary cofferdam 7. The anchor groove is excavated to the one-way geogrid 9, that is, the one-way geogrid 9 partially extends into the anchor groove, see Figure 1 The lower end of the protective cloth 1 extends into the anchoring groove and is adjacent to the unidirectional geogrid 9, which can better stabilize the position of the protective cloth 1, and the anchoring foot 3 is pressed on the unidirectional geogrid 9.

[0051] The process of constructing the slope protection device at the temporary cofferdam 7 includes:

[0052] (1) Construction preparation:

[0053] Purchase and reserve of materials; entry inspection; organization of construction personnel, and conduct job skills training focusing on process technology, construction safety, energy conservation and environmental protection; at the same time, carry out terrain surveys and carry out pretreatment of bottom slope protection, etc.

[0054] (2) Basic operations:

[0055] 1) Anchor trench operation: The anchor trench is set along the foot of the temporary cofferdam 7 and excavated to the elevation 9 of the one-way geogrid of the embankment.

[0056] 2) Slope operation of the embankment: according to the slope form and graded step height of the existing temporary cofferdam 7, the positions of the 4-hole nodes of the wire mesh are reserved according to the design parameters such as the 4-node spacing of the wire mesh, mesh diameter, step horizontal height and vertical line spacing.

[0057] 3) Laying the protective cloth 1: Pre-laying geotextile on the slope as the protective cloth 1, the protective cloth 1 extends into the anchor groove and is connected to the one-way geogrid 9 at the bottom of the temporary cofferdam 7.

[0058] 4) Wire Mesh 4 weaving: the mesh surface is smooth and the mesh openings are uniform; the mesh error does not exceed 2.0cm and the body width error does not exceed 5.0cm.

[0059] 5) Construction of the wire mesh 4 of the anchor foot 3: Place the wire mesh 4 of the anchor foot 3 on the protective cloth 1 at the anchor groove position, and place the wire mesh 4 of the slope protection part 2 on the protective cloth 1 on the slope.

[0060] 6) Filling the wire mesh 4 with stones: The stone particle size should be uniform and full, and the filling height should be slightly higher than the cage mesh. When filling the external gabion, when the stone filling in the box reaches 1 / 3 of the height, tighten the binding wire to fix it in an eight-shaped shape to keep the appearance smooth.

[0061] (3) Acceptance: Acceptance shall be carried out in accordance with relevant domestic standards and specifications.

[0062] As can be seen from the above, the slope protection device of the utility model has the following beneficial effects:

[0063] 1. The protective cloth 1 plays the role of inner layer protection and stabilizing the slope protection part 2. The anchor foot 3 is buried in the ground 8, which can stabilize the slope protection part 2 well. The slope protection part 2 is composed of a multi-layer material composite. By filling the wire mesh 4 with well-graded stones, a stable slope protection structure is formed, and the filling material 5 has a certain water permeability, which can protect the slope from the impact and damage of wind and waves; the overall stability of the temporary cofferdam 7 can be enhanced by combining rigidity and flexibility to adapt to the phenomenon of deformation rebound, prevent the temporary cofferdam 7 from being damaged, and have the function of preventing typhoons and floods.

[0064] 2. The slope protection device has a simple structure and is easy to install and disassemble, and can be conveniently used for the protection of short-term dams or temporary cofferdams 7.

[0065] 3. The slope protection part 2 and the anchor foot 3 adopt modular design, which is convenient for operation, assembly and disassembly on site. Stones can be obtained on site, and the construction process is fast and simple. Compared with traditional designs, it has lower construction and maintenance costs.

[0066] In summary, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0067] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A wind and wave-proof slope protection device, used for being arranged on a slope for protection, characterized in that: The invention comprises a protective cloth (1), a slope protection part (2), an anchoring foot (3) and an anchoring groove. The slope protection part (2) and the anchoring foot (3) both comprise an outer anchor wire mesh (4), a filler (5) filled in the anchor wire mesh (4), and a leak-proof cloth (6) arranged between the anchor wire mesh (4) and the filler (5). The filler (5) comprises stones of various particle sizes. The anchoring groove is excavated on the ground (8) at the bottom of the slope. The protective cloth (1) is laid on the slope. The anchoring foot (3) is arranged in the anchoring groove. The slope protection part (2) is laid on the protective cloth (1), and the anchor wire mesh (4) at the bottom end of the slope protection part (2) is fixedly connected to the anchor wire mesh (4) of the anchoring foot (3).

2. The wind and wave-proof slope protection device according to claim 1 is characterized in that: The filler (5) is made of graded stones of various particle sizes.

3. The wind and wave-proof slope protection device according to claim 1 is characterized in that: The stones in the filler (5) include stone flakes or pebbles, and the filling void ratio of the stones in the filler (5) is not greater than 30%.

4. The wind and wave-proof slope protection device according to claim 3 is characterized in that: The stone particle size in the filler (5) is 100-250 mm, and the maximum bulk density of the filler (5) is 20 kN / m 3 .

5. The wind and wave-proof slope protection device according to claim 1 is characterized in that: The protective cloth (1) and the leak-proof cloth (6) are made of high-strength polyethylene material.

6. The wind and wave-proof slope protection device according to claim 1 is characterized in that: The diameter of the steel wire of the anchor wire mesh (4) is 3.5-4.0 mm, and the surface of the steel wire has an aluminum coating, and a PVC material coating is provided on the aluminum coating.

7. The wind and wave-proof slope protection device according to claim 1 is characterized in that: The equivalent diameter of the mesh in the anchor wire mesh (4) is 50 to 80 mm.

8. The wind and wave-proof slope protection device according to claim 1 is characterized in that: The anchor wire mesh (4) comprises a plurality of mesh sheet units (41) and connecting steel wires. The plurality of mesh sheet units (41) are assembled into the anchor wire mesh (4), and adjacent mesh sheet units (41) are bound together by connecting steel wires.

9. The wind and wave-proof slope protection device according to claim 1, characterized in that: The slope surface is the slope surface on the seaward side of the temporary cofferdam (7).

10. The wind and wave-proof slope protection device according to claim 9, characterized in that: A one-way geogrid (9) is provided in the soil below the temporary cofferdam (7), the anchoring groove is excavated to the one-way geogrid (9), the lower end of the protective cloth (1) extends into the anchoring groove and is connected to the one-way geogrid (9), and the anchoring foot (3) is pressed on the one-way geogrid (9).

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