Shallow cofferdam high heat galvanized steel wire sandbag cage

Abstract

The utility model discloses a shallow cofferdam high hot galvanizing steel wire sandbag cage relates to hydraulic engineering construction technical field, including revetment sandbag cage, and the revetment sandbag cage is constituted by high hot galvanizing steel wire mesh pad and is filled with sandbag in the inside, and the revetment sandbag cage is piled up and is distributed on the water face revetment of shallow cofferdam, the utility model discloses high hot galvanizing steel wire sandbag cage, and the structural strength is high, can effectively resist the scour and lateral pressure of water flow, compared with traditional sandbag cofferdam, and the stability is greatly improved, can be applicable to the shallow water area construction of the water flow speed being bigger. Since steel wire mesh pad is treated by high hot galvanizing, has excellent corrosion resistance, can still keep good structural performance under the condition of long -term soaking in water, prolongs the service life of cofferdam, and reduces the later maintenance cost. Sandbag cage can be prefabricated in the factory, and only needs assembling and filling sandbag on the spot, and the construction process is simple and quick, reduces a large amount of manual filling and handling work, and greatly improves construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering construction technology, and in particular to a hot-dip galvanized steel wire sandbag cage for shallow water cofferdams. Background Technology

[0002] In water conservancy engineering construction, shallow cofferdams are common temporary water-retaining structures used to isolate the construction area from water bodies during construction, creating dry construction conditions. Traditionally, shallow cofferdams are constructed using sandbag stacking; however, this method has many drawbacks. For example, sandbags are easily eroded by water flow, have poor stability, and in environments with slightly higher water flow rates, sandbags are easily washed away or displaced, leading to leakage or even collapse of the cofferdam. Furthermore, ordinary sandbags lack durability; prolonged immersion in water causes the sandbag material to rot, significantly shortening the effective service life of the cofferdam. Moreover, the construction process of traditional sandbag cofferdams is quite cumbersome, requiring a large amount of manual labor for filling, transporting, and stacking sandbags, resulting in low construction efficiency and high labor intensity. Utility Model Content

[0003] The purpose of this invention is to provide a hot-dip galvanized steel wire sandbag cage for shallow water cofferdams, in order to solve the problems existing in the prior art, and to provide advantages such as high stability, strong durability and high construction efficiency.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] This utility model provides a hot-dip galvanized steel wire mesh sandbag cage for shallow water cofferdams, including a slope protection sandbag cage. The slope protection sandbag cage is made of hot-dip galvanized steel wire mesh and filled with sandbags. The slope protection sandbag cage is stacked and distributed on the water-facing slope of the shallow water cofferdam.

[0006] Preferably, the slope protection sandbag cage is a cubic structure, including a bottom plate, side plates, end plates and a cover plate made of hot-dip galvanized steel wire mesh. The slope protection sandbag cage is provided with partitions made of hot-dip galvanized steel wire mesh that divide its internal space, and sandbags are distributed in each compartment.

[0007] Preferably, the high-heat-dip galvanized steel wire mesh mat is woven from high-heat-dip galvanized steel wire, the mesh diameter of the high-heat-dip galvanized steel wire mesh mat is 60mm, the diameter of the high-heat-dip galvanized steel wire constituting the mesh surface of the high-heat-dip galvanized steel wire mesh mat is 2.2mm, and the diameter of the high-heat-dip galvanized steel wire constituting the edge of the high-heat-dip galvanized steel wire mesh mat is 2.7mm.

[0008] Preferably, the slope protection sandbag cage is 6m long, 3m wide, and 0.5m high, and a partition is set every 1m along the length of the slope protection sandbag cage.

[0009] Preferably, two adjacent slope protection sandbag cages are connected by binding with double-stranded steel wire, the diameter of which is 2.2mm.

[0010] Preferably, it also includes foot groove sandbag cages, which are made of hot-dip galvanized steel wire mesh and filled with sandbags. The foot groove sandbag cages are stacked and distributed on the water-facing slope toe of the shallow water cofferdam.

[0011] Preferably, the foot groove sandbag cage has a cubic structure, including a bottom plate, side plates, end plates and a cover plate made of hot-dip galvanized steel wire mesh. The foot groove sandbag cage is provided with partitions made of hot-dip galvanized steel wire mesh that divide its internal space, and sandbags are distributed in each compartment.

[0012] Preferably, the high-heat-dip galvanized steel wire mesh mat is woven from high-heat-dip galvanized steel wire, the mesh diameter of the high-heat-dip galvanized steel wire mesh mat is 80mm, the diameter of the high-heat-dip galvanized steel wire constituting the mesh surface of the high-heat-dip galvanized steel wire mesh mat is 3.0mm, and the diameter of the high-heat-dip galvanized steel wire constituting the edge of the high-heat-dip galvanized steel wire mesh mat is 3.9mm.

[0013] Preferably, the length of the foot groove sandbag cage is 2m, the width is 0.5m, and the height is 0.5m, and a partition is set every 1m along the length direction inside the foot groove sandbag cage.

[0014] Preferably, two adjacent sandbag cages are connected by binding with double-stranded steel wire, the diameter of which is 3.0 mm.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] 1) The hot-dip galvanized steel wire sandbag cage in this utility model has high stability in shallow water: The high-dip galvanized steel wire sandbag cage has high structural strength and can effectively resist the scouring and lateral pressure of water flow. Compared with traditional sandbag cofferdams, its stability is greatly improved and it can be used for construction in shallow water areas with high water flow velocity.

[0017] 2) The shallow water cofferdam with hot-dip galvanized steel wire sandbag cage in this utility model has strong durability: because the steel wire mesh mat is treated with hot-dip galvanization, it has excellent corrosion resistance. Even when immersed in water for a long time, it can still maintain good structural performance, extend the service life of the cofferdam and reduce the later maintenance cost.

[0018] 3) The shallow water cofferdam with hot-dip galvanized steel wire sandbag cages of this utility model has high construction efficiency: the sandbag cages can be prefabricated in the factory, and only assembly and filling of sandbags are required on site. The construction process is simple and quick, reducing a lot of manual filling and transportation work, greatly improving construction efficiency and shortening the construction cycle.

[0019] 4) The shallow water cofferdam with hot-dip galvanized steel wire mesh sandbag cages in this utility model is environmentally friendly and energy-saving: the geotextile bags and hot-dip galvanized steel wire mesh mats used are recyclable and reusable, meeting environmental protection requirements. At the same time, due to the improved construction efficiency, energy consumption during the construction process is reduced. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the slope protection sandbag cage of the hot-dip galvanized steel wire sandbag cage for shallow water cofferdams in this utility model.

[0022] Figure 2 This is a schematic diagram of the foot groove sandbag cage of the shallow water cofferdam high hot-dip galvanized steel wire sandbag cage of this utility model;

[0023] Figure 3 This is a schematic diagram of hot-dip galvanized steel wire sandbag cages stacked on a shallow water cofferdam in this utility model.

[0024] In the picture: 1. Slope protection sandbag cage; 2. Foot groove sandbag cage; 3. Sandbag; 4. Shallow water cofferdam; 5. Divider; 6. High hot-dip galvanized steel wire mesh mat. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The purpose of this invention is to provide a hot-dip galvanized steel wire sandbag cage for shallow water cofferdams, in order to solve the problems existing in the prior art.

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In this embodiment, the shallow water cofferdam with hot-dip galvanized steel wire sandbag cages, such as Figures 1-3As shown, the structure includes a slope protection sandbag cage 1, which is composed of a hot-dip galvanized steel wire mesh mat 6 and filled with sandbags 3. The sandbag cage 1 is stacked and distributed on the water-facing slope of the shallow water cofferdam 4. The hot-dip galvanized steel wire mesh mat 6 has high strength and corrosion resistance. Its steel wire is hot-dip galvanized, and the zinc coating is uniform and thick, which can effectively prevent the steel wire from rusting and corroding in humid environments, greatly extending its service life.

[0029] In this specific embodiment, the slope protection sandbag cage 1 is a cubic structure, including a bottom plate, side plate, end plate and cover plate made of hot-dip galvanized steel wire mesh 6. The slope protection sandbag cage 1 is provided with partitions 5 made of hot-dip galvanized steel wire mesh 6 that divide its internal space, and sandbags 3 are distributed in each compartment.

[0030] The mesh size of the wire mesh is designed according to actual usage requirements, ensuring that the sandbags filling the mesh do not leak out while allowing water to pass through to a certain extent, reducing lateral pressure on the cofferdam. In this specific embodiment, the high-heat galvanized steel wire mesh mat 6 is woven from high-heat galvanized steel wire. The mesh diameter of the high-heat galvanized steel wire mesh mat 6 is 60mm, the diameter of the high-heat galvanized steel wire forming the mesh surface of the high-heat galvanized steel wire mesh mat 6 is 2.2mm, and the diameter of the high-heat galvanized steel wire forming the edge of the high-heat galvanized steel wire mesh mat 6 is 2.7mm.

[0031] In this specific embodiment, the slope protection sandbag cage 1 is 6m long, 3m wide, and 0.5m high. A partition 5 is set every 1m along the length direction inside the slope protection sandbag cage 1.

[0032] In this specific embodiment, two adjacent slope protection sandbag cages 1 are connected by binding with double-stranded steel wires, the diameter of which is 2.2mm.

[0033] The specific technical parameters of the slope protection sandbag cage 1 are shown in the table below:

[0034]

[0035] In this specific embodiment, a foot groove sandbag cage 2 is also included. The foot groove sandbag cage 2 is made of hot-dip galvanized steel wire mesh mat 6 and filled with sandbags. The foot groove sandbag cage 2 is stacked and distributed on the water-facing slope toe of the shallow water cofferdam 4. The foot groove sandbag cage 2 is used to stabilize the slope toe and prevent slope slippage.

[0036] In this specific embodiment, the foot groove sandbag cage 2 is a cubic structure, including a bottom plate, side plate, end plate and cover plate made of hot-dip galvanized steel wire mesh 6. The foot groove sandbag cage 2 is provided with partitions 5 made of hot-dip galvanized steel wire mesh 6 that divide its internal space, and sandbags 3 are distributed in each compartment.

[0037] In this specific embodiment, the hot-dip galvanized steel wire mesh mat 6 is woven from hot-dip galvanized steel wire. The mesh diameter of the hot-dip galvanized steel wire mesh mat 6 is 80mm, the diameter of the hot-dip galvanized steel wire forming the mesh surface of the hot-dip galvanized steel wire mesh mat 6 is 3.0mm, and the diameter of the hot-dip galvanized steel wire forming the edge of the hot-dip galvanized steel wire mesh mat 6 is 3.9mm.

[0038] In this specific embodiment, the length of the foot groove sandbag cage 2 is 2m, the width is 0.5m, and the height is 0.5m. A partition 5 is set every 1m along the length direction inside the foot groove sandbag cage 2. Adjacent foot groove sandbag cages 2 are connected by binding steel wire with a diameter of 3.0mm.

[0039] The specific technical parameters of the foot groove sandbag cage 2 are shown in the table below:

[0040]

[0041] The adjacent slope protection sandbag cages 1 or foot trench sandbag cages 2 are tied together by double-stranded wire and twisted tightly, with no less than 3 twists. Each tie is made at intervals of no more than 20cm to 25cm. The tying should start from the edge and the end of the wire should be folded inward.

[0042] The sandbags filling the slope protection sandbag cage 1 or the toe trench sandbag cage 2 are made of high-strength, waterproof geotextile bags, and the filling material inside the bags is well-graded sand and gravel or clay. Sand and gravel have good permeability and stability, while clay has good impermeability. The appropriate filling material can be selected according to the specific functional requirements of the cofferdam.

[0043] When filling the sandbag cage, arrange the sandbags tightly inside the cage to minimize gaps between them, thereby improving the overall stability of the cage.

[0044] At the construction site, the cofferdam foundation is first treated according to the design requirements. Debris and silt on the foundation surface are cleared to ensure the foundation is flat and solid. A composite geomembrane is then laid on the water-facing side of the cofferdam to reduce capillary water seepage. Next, sandbag cages filled with sandbags are stacked layer by layer according to the designed cofferdam shape and dimensions. During the stacking process, attention is paid to the alignment and connection between adjacent sandbag cages to enhance the friction between layers and the overall stability.

[0045] The construction steps for the shallow water cofferdam 4 high hot-dip galvanized steel wire sandbag cage in this utility model are as follows:

[0046] (I) Construction Preparation

[0047] According to the design requirements of the cofferdam, purchase materials such as high-temperature galvanized steel wire mesh mats of appropriate specifications, geotextile bags, sand and gravel or clay, binding wire, and composite geomembrane.

[0048] Inside the factory, sandbag cages are manufactured according to the design dimensions. High-heat galvanized steel wire mesh pads 6 are processed into the required shape using special equipment, and the connection parts are pre-treated.

[0049] Prepare the necessary machinery and equipment for the construction site, such as cranes, loaders, and transport vehicles, and level and clean the construction site.

[0050] (II) Sandbag Cage Construction and Filling

[0051] Inside the factory, the high-heat-dip galvanized steel wire mesh mats 6 are cut to the design dimensions, and special connecting tools are used to connect the steel wire mesh mats into the shape of sandbag cages, ensuring that the connection is firm and the mesh is not deformed.

[0052] Fill geotextile bags with sand or clay, filling them to about 90% of their capacity. Then place the filled sandbags into the sandbag cage, arranging them tightly to minimize gaps between them.

[0053] Conduct a quality inspection on the sandbag cages that have been filled with sandbags to ensure that the structure of the sandbag cages is intact, the sandbags are fully filled, and there is no sand leakage.

[0054] (III) Cofferdam Construction

[0055] Foundation treatment: At the construction site, use excavators and other equipment to clear debris, silt and loose soil from the surface of the cofferdam foundation, level the foundation to the design elevation and compact it to ensure that the foundation's bearing capacity meets the requirements.

[0056] Sandbag cage transportation and stacking: The finished sandbag cages are transported to the construction site by transport vehicles and stacked in a reasonable manner according to the construction sequence and stacking requirements to facilitate subsequent hoisting and assembly.

[0057] Cofferdam Assembly: Sandbag cages are lifted onto the foundation using a crane and stacked layer by layer according to the designed cofferdam shape and dimensions. During the stacking process, the position of each layer of sandbag cages is checked to ensure accuracy and alignment between adjacent sandbag cages.

[0058] Connection and sealing: At the connection point between adjacent sandbag cages, the adjacent hot-dip galvanized steel wire sandbag cages are tied with double strands of wire and twisted tightly to ensure a firm connection.

[0059] Corner and edge treatment: For the corners of the cofferdam, specially designed corner sandbag cages are assembled, or ordinary sandbag cages are cut and spliced ​​on-site to ensure the structural stability of the corners. For the edges of the cofferdam, the number of sandbag cage layers can be appropriately increased or local reinforcement can be carried out to prevent collapse at the edges.

[0060] Cofferdam Inspection and Maintenance: After the cofferdam construction is completed, a comprehensive inspection should be conducted. This includes checking the security of the sandbag cage connections, the effectiveness of the waterproofing seal, and whether the overall stability of the cofferdam meets requirements. During the cofferdam's use, regular inspections should be carried out, and any problems discovered should be promptly addressed and maintained to ensure its safe operation.

[0061] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A shallow water cofferdam with hot-dip galvanized steel wire sandbag cage, characterized in that: The system includes slope protection sandbag cages, which are made of hot-dip galvanized steel wire mesh and filled with sandbags. The slope protection sandbag cages are stacked and distributed on the water-facing slope of the shallow water cofferdam.

2. The shallow water cofferdam high-heat galvanized steel wire sandbag cage according to claim 1, characterized in that: The slope protection sandbag cage has a cubic structure, including a bottom plate, side plates, end plates and a cover plate made of hot-dip galvanized steel wire mesh. The slope protection sandbag cage is equipped with partitions made of hot-dip galvanized steel wire mesh that divide the internal space, and sandbags are distributed in each compartment.

3. The shallow water cofferdam high-heat galvanized steel wire sandbag cage according to claim 2, characterized in that: The hot-dip galvanized steel wire mesh mat is woven from hot-dip galvanized steel wire. The mesh diameter of the hot-dip galvanized steel wire mesh mat is 60mm. The diameter of the hot-dip galvanized steel wire forming the mesh surface of the hot-dip galvanized steel wire mesh mat is 2.2mm, and the diameter of the hot-dip galvanized steel wire forming the edge of the hot-dip galvanized steel wire mesh mat is 2.7mm.

4. The shallow water cofferdam high-heat galvanized steel wire sandbag cage according to claim 2, characterized in that: The slope protection sandbag cage is 6m long, 3m wide, and 0.5m high. A partition is installed inside the slope protection sandbag cage every 1m along the length direction.

5. The shallow water cofferdam high-heat galvanized steel wire sandbag cage according to claim 2, characterized in that: The adjacent sandbag cages are connected by binding with double-stranded steel wire with a diameter of 2.2mm.

6. The shallow water cofferdam high-heat galvanized steel wire sandbag cage according to claim 1, characterized in that: It also includes foot trench sandbag cages, which are made of hot-dip galvanized steel wire mesh and filled with sandbags. The foot trench sandbag cages are stacked and distributed on the water-facing slope toe of the shallow water cofferdam.

7. The shallow water cofferdam high-heat galvanized steel wire sandbag cage according to claim 6, characterized in that: The foot groove sandbag cage has a cubic structure, including a bottom plate, side plates, end plates and cover plates made of hot-dip galvanized steel wire mesh. The foot groove sandbag cage is equipped with partitions made of hot-dip galvanized steel wire mesh that divide its internal space, and sandbags are distributed in each compartment.

8. The shallow water cofferdam high-heat galvanized steel wire sandbag cage according to claim 7, characterized in that: The hot-dip galvanized steel wire mesh mat is woven from hot-dip galvanized steel wire. The mesh diameter of the hot-dip galvanized steel wire mesh mat is 80mm. The diameter of the hot-dip galvanized steel wire forming the mesh surface of the hot-dip galvanized steel wire mesh mat is 3.0mm. The diameter of the hot-dip galvanized steel wire forming the edge of the hot-dip galvanized steel wire mesh mat is 3.9mm.

9. The shallow water cofferdam high-heat galvanized steel wire sandbag cage according to claim 7, characterized in that: The foot groove sandbag cage is 2m long, 0.5m wide, and 0.5m high. A partition is set every 1m along the length of the foot groove sandbag cage.

10. The shallow water cofferdam high-heat galvanized steel wire sandbag cage according to claim 7, characterized in that: The two adjacent sandbag cages are connected by a double-strand binding wire with a diameter of 3.0 mm.

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