Buckle steel wire mesh soil cofferdam
By adopting ring-buckle wire mesh design in the earth cofferdam, the problem of unfixed fixation in traditional construction methods is solved, more efficient construction and more stable structure are achieved, and anti-seepage performance and safety are improved.
Patent Information
- Application Number
- CN202422233221.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-12
AI Technical Summary
During the construction of traditional cofferdams, bolt fixing or braiding fixing methods are prone to loosen or fall off under external forces, resulting in insufficient connection strength, poor durability, and reduced structural stability.
The ring-buckle wire mesh earth cofferdam design is adopted, and is fixed by welding and flat steel by wire mesh, and a concentric first ring buckle and second ring buckle are used to connect between adjacent grid units to form a stable cofferdam frame.
It improves construction efficiency and structural stability, enhances the anti-shrinking ability, effectively prevents moisture penetration, and improves the sealing and safety of the cofferdam.
Smart Images
Figure CN222975911U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of water conservancy projects, and specifically relates to a ring-buckle steel wire mesh soil cofferdam. Background Technique
[0002] In the field of water conservancy projects, a cofferdam is a key engineering structure and is widely used in engineering projects such as river regulation, coastline protection, and reservoir reinforcement. These projects usually face complex environmental conditions and strict technical requirements, so the design and construction of the cofferdam require a high degree of professionalism and innovation.
[0003] During the construction process of traditional soil cofferdams, traditional fixing methods are easily affected by technology, such as bolt fixing or weaving fixing. These methods are prone to loosening or falling off when subjected to external forces, resulting in problems such as insufficient connection strength and poor durability, leading to a decline in the overall structural stability, and even an extension of the construction period and waste of materials. Content of the Utility Model
[0004] The purpose of the utility model is to provide a ring-buckle steel wire mesh soil cofferdam, which is used to solve the problems that bolt fixing or weaving fixing is selected during the construction process of traditional soil cofferdams, and it is prone to loosening or falling off when subjected to external forces, resulting in problems such as insufficient connection strength and poor durability.
[0005] To achieve the above purpose, the utility model provides a ring-buckle steel wire mesh soil cofferdam, which includes a steel wire fence. The steel wire fence includes a steel wire mesh, flat steel is welded and fixed around the steel wire mesh, and a number of concentric first ring buckles are alternately welded up and down on the flat steel of adjacent steel wire fences. After alignment, a connecting steel pipe is sleeved in. The bottom of the connecting steel pipe is inserted into the ground. Multiple groups of steel wire fences are continuously assembled in sequence to form a cofferdam framework. A top steel pipe is provided at the top of the steel wire fence. Two groups of first ring buckles and second ring buckles are respectively welded at both ends of the top steel pipe. The first ring buckles at both ends of the top steel pipe are sleeved on the top ends of the corresponding connecting steel pipes. A support steel pipe is vertically inserted into the second ring buckle. The bottom of the support steel pipe is inserted into the ground. Anti-seepage layers are arranged on both sides and the bottom of the cofferdam framework. The anti-seepage layer includes two layers of reinforcing fabrics, and an anti-seepage membrane is arranged between the two groups of reinforcing fabrics. A soil filling layer is filled on the upper side of the anti-seepage layer.
[0006] As a further scheme of the utility model, the surface of the steel wire mesh is subjected to galvanized anti-corrosion treatment.
[0007] As a further scheme of the utility model, the connecting steel pipe and the support steel pipe ensure verticality.
[0008] As a further scheme of the utility model, the inner diameter of the first ring buckle is larger than the outer diameter of the connecting steel pipe.
[0009] As a further scheme of the utility model, the inner diameter of the second ring buckle is larger than the outer diameter of the support steel pipe.
[0010] Compared with the prior art, the utility model optimizes the structural connection method through the innovative design of the looped steel wire mesh soil cofferdam, improves the construction efficiency and structural stability. The utility model adopts a unique loop connection design on the steel wire mesh component, enabling the rapid connection of adjacent grid units, greatly improving the construction speed and reducing the labor cost;
[0011] In addition, the steel pipe and the steel wire mesh are tightly combined through the circular ring fixing system, enhancing the overall structural stability and anti-scouring ability. In terms of the anti-seepage performance, the utility model adopts the anti-seepage layer design of "two layers of fabric and one layer of film", effectively preventing water penetration. Combined with the layered filling technology, the tightness and safety of the cofferdam are further improved. Description of the Drawings
[0012] Figure 1 It is a plan layout drawing of a looped steel wire mesh soil cofferdam.
[0013] Figure 2 It is an elevation drawing of a looped steel wire mesh soil cofferdam.
[0014] Figure 3 It is a sectional view of a looped steel wire mesh soil cofferdam.
[0015] Figure 4 It is a detailed drawing of the connection buckle of a looped steel wire mesh soil cofferdam.
[0016] In the figure: 1 - steel wire fence, 21 - first loop, 22 - second loop, 3 - anti-seepage layer, 4 - soil filling layer, 51 - connecting steel pipe, 52 - top steel pipe, 53 - support steel pipe, 54 - flat steel. Detailed Embodiment
[0017] The technical solution of the utility model will be further described in detail below in combination with the specific embodiments.
[0018] Such as Figures 1 to 4As shown in the figure, in the embodiment of the present utility model, a ring-buckled steel wire mesh soil cofferdam includes a steel wire fence 1, which comprises a steel wire mesh. Flat steel 54 is welded and fixed around the steel wire mesh. A number of concentric first ring buckles 21 are alternately welded up and down on the flat steel 54 of adjacent steel wire fences 1. After alignment, a connecting steel pipe 51 is sleeved in. The bottom of the connecting steel pipe 51 is inserted into the ground. Multiple groups of steel wire fences 1 are continuously assembled in sequence to form a cofferdam framework. A top steel pipe 52 is provided at the top of the steel wire fence 1. Two groups of first ring buckles 21 and second ring buckles 22 are respectively welded at both ends of the top steel pipe 52. The first ring buckles 21 at both ends of the top steel pipe 52 are sleeved on the top ends of the corresponding connecting steel pipes 51. A support steel pipe 53 is vertically inserted into the second ring buckles 22. The bottom of the support steel pipe 53 is inserted into the ground. An anti-seepage layer 3 is provided on both sides and the bottom of the cofferdam framework. The anti-seepage layer 3 includes two layers of reinforcing fabrics, and an anti-seepage membrane is provided between the two groups of reinforcing fabrics. A soil filling layer 4 is filled on the upper side of the anti-seepage layer 3;
[0019] In the present utility model, a number of concentric first ring buckles 21 are alternately welded up and down on the flat steel 54 on the side surfaces of adjacent steel wire fences 1, and are alternately nested and inserted into the connecting steel pipe 51 to jointly form a side framework. The number of first ring buckles 21 and second ring buckles 22 welded to the top steel pipe 52 is 2 respectively;
[0020] The reinforcing fabric is selected as filament non-woven geotextile, and the anti-seepage membrane is selected as high-density polyethylene (HDPE) membrane to enhance the anti-seepage performance of the cofferdam and prevent water seepage. The soil filling layer 4 inside the cofferdam is constructed by the layered filling method, with a thickness of 30 cm for each layer, and a small vibrating compaction device is used for compaction to ensure uniform filling.
[0021] Furthermore, the surface of the steel wire mesh is subjected to galvanized anti-corrosion treatment. The steel wire mesh is made of alloy steel or stainless steel, and is a mechanically woven mesh structure. The mesh size of the steel wire mesh is 50 mm × 50 mm. The flat steel 54 has a specification of 25 mm × 10 mm and a wall thickness of 2 mm, and is subjected to hot-dip galvanization treatment and is arranged around the steel wire mesh.
[0022] As Figure 2 、 Figure 3 and Figure 4 shown, in the embodiment of the present utility model, the connecting steel pipe 51 and the support steel pipe 53 ensure verticality, and the lower ends of the connecting steel pipe 51 and the support steel pipe 53 are embedded in the ground to a certain depth, and the depth meets the requirements of the design specification.
[0023] As Figure 2 、 Figure 3 and Figure 4 shown in the embodiment of the present utility model, the inner diameter of the first ring buckle 21 is larger than the outer diameter of the connecting steel pipe 51, and the inner diameter of the second ring buckle 22 is larger than the outer diameter of the support steel pipe 53.
[0024] During construction of the utility model:
[0025] Step 1: Determine the construction area, clean the site and conduct geological surveys, accurately measure and mark the boundary line of the earth cofferdam, and transport the earth to the seaside for temporary storage or give priority to using the original soil on site.
[0026] Step 2: Place the wire fence 1 and ensure that the first loops 21 between adjacent wire fences 1 are accurately aligned. While vertically inserting the connecting steel pipe 51 into the first loop 21, ensure that one end of the steel pipe is inserted to an appropriate depth below the ground. Repeat the above steps until the cofferdam is extended to the predetermined design length.
[0027] Step 3: Connect the top steel pipe 52 through the first ring buckle 21 at the top of the wire fence 1, and insert the supporting steel pipe 53 into the ground through the second ring buckle 22 to form a stable supporting structure.
[0028] Step 4: Lay the anti-seepage layer 3 on the inner side of the cofferdam. The anti-seepage layer 3 adopts the structure of "two cloths and one membrane", which consists of two layers of reinforced cloth and a central anti-seepage membrane to ensure the continuity and sealing of the anti-seepage layer 3. Then construct the soil filling layer 4, using silty clay for layered filling, and the thickness of each layer is controlled at 30 cm. And use small vibration compaction equipment to compact each layer of filling soil to ensure that the compaction degree meets the design requirements.
[0029] In summary, the utility model optimizes the structural connection mode and improves the construction efficiency and structural stability through the innovative design of the ring-buckle wire mesh earth cofferdam. The utility model adopts a unique ring-buckle connection design on the wire mesh assembly, so that adjacent grid units can be quickly connected, which greatly improves the construction speed and reduces the labor cost.
[0030] In addition, the steel pipe and the wire mesh are tightly combined through the circular ring fixing system, which enhances the stability and anti-scouring ability of the overall structure. In terms of anti-seepage performance, the utility model adopts an anti-seepage layer design of "two cloths and one membrane", which effectively prevents water penetration. Combined with the layered filling technology, the sealing and safety of the cofferdam are further improved.
[0031] In general, the utility model provides a more stable, efficient, economical and environmentally friendly solution for the construction of cofferdams in water conservancy projects, and has broad application prospects and significant social and economic benefits.
[0032] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.
Claims
1. A ring-buckle wire mesh earth cofferdam, characterized in that: It comprises a wire fence, which comprises a wire mesh, wherein flat steel is welded and fixed around the wire mesh, and a plurality of concentric first ring buckles are welded alternately on the flat steels of adjacent wire fences, which are aligned and inserted into connecting steel pipes, and the bottom of the connecting steel pipes is inserted into the ground. Multiple groups of wire fences are assembled in sequence to form a cofferdam frame, and a top steel pipe is provided on the top of the wire fence, and two groups of first ring buckles and second ring buckles are respectively welded at both ends of the top steel pipe, and the first ring buckles at both ends of the top steel pipe are sleeved on the top of the corresponding connecting steel pipe, and a supporting steel pipe is vertically inserted into the second ring buckle, and the bottom of the supporting steel pipe is inserted into the ground. Anti-seepage layers are arranged on both sides and the bottom of the cofferdam frame, and the anti-seepage layer comprises two layers of reinforced fabrics, and an anti-seepage membrane is arranged between the two groups of reinforced fabrics, and a soil filling layer is filled on the upper side of the anti-seepage layer.
2. The ring-buckle wire mesh earth cofferdam according to claim 1, characterized in that: The surface of the steel wire mesh is subjected to galvanizing anti-corrosion treatment.
3. The ring-buckle wire mesh earth cofferdam according to claim 1, characterized in that: The connecting steel pipe and the supporting steel pipe ensure verticality.
4. The ring-buckle wire mesh earth cofferdam according to claim 1, characterized in that: The inner diameter of the first ring buckle is larger than the outer diameter of the connecting steel pipe.
5. The ring-buckle wire mesh earth cofferdam according to claim 1, characterized in that: The inner diameter of the second ring buckle is larger than the outer diameter of the supporting steel pipe.