Composite protective belt for water surface pier and protective structure of composite protective belt

Abstract

A composite protective belt for a water surface pier comprises a plastic shaping metal core wire, a hydraulic shaping material, a tubular wrapping fabric and a positioning protective woven layer, the tubular wrapping fabric is arranged outside the plastic shaping metal core wire in a sleeving mode, the hydraulic shaping material is filled between the tubular wrapping fabric and the plastic shaping metal core wire, and the positioning protective woven layer is arranged between the tubular wrapping fabric and the plastic shaping metal core wire. The positioning protection braid layer is arranged outside the tubular wrapping fabric in a sleeving manner; the plastic shaping metal core wire is used for providing initial plastic shaping force for installation of the protective belt; the hydraulic setting material is used for hardening and setting in water when the protective belt is mounted; the tubular coating fabric is used for coating the plastic setting metal core wire and the hydraulic setting material; the positioning protection braid layer is of a tubular braid structure with side braid belts and is used for improving the weather corrosion resistance of the protection belt. According to the design, the performance is excellent, direct erosion of water waves and organisms is prevented, and the production and manufacturing cost is low.

Description

Technical Field

[0001] The present invention relates to a composite protective belt and protective structure for water surface bridge piers. Specifically, the composite belt is suitable for significantly improving the surge impact resistance and durability of the bridge piers by combining a composite design with a plastic metal core layer and a cement solid phase material, in combination with multiple protective processes. The belt is suitable for protective projects for bridge piers in waters such as oceans and rivers. Background Art

[0002] Bridge piers are often constructed of concrete or steel and are frequently subjected to erosion by currents and waves, which can damage, age, and even peel off the pier surface. Salt spray from seawater can corrode the pier surface over time, and aquatic organisms can attach and grow on the pier surface, damaging it. Furthermore, piers can be struck by ships, causing damage and other issues. These issues highlight the need to protect the piers above water to ensure the safety of bridge projects and extend their service life.

[0003] Bridge pier protection devices have recently received increasing attention. For example, patent CN107761550A discloses a dynamic pier anti-collision device. Several buoyancy boxes, bound with steel wire ropes or steel belts, are installed on the outside of the pier to protect appropriate areas of the pier, solving the problem of up-and-down floating. Patent CN104005331A discloses a bridge pier protection and anti-collision device that includes a composite material fixing layer, anti-collision guardrails, and support columns. The device is installed through various methods, including plug-in and bolt fastening. The result is a complex structure and a cumbersome installation process.

[0004] The protection of bridge piers is complicated due to the complex environment in which they are used. At the same time, it is necessary to consider factors such as climate corrosion, biological corrosion, salt corrosion, wind and wave resistance, water level fluctuation and environmental protection. As a result, existing protection devices have design shortcomings in at least 1-2 aspects. Even if all aspects are taken into consideration, the complexity of the structural design involves a large number of parts of different sizes, and the installation and transportation are not fixed. In addition, they need to be specially designed and customized according to the pier structure, resulting in a long manufacturing cycle and high manufacturing costs.

[0005] Composite materials have been introduced into civil engineering and construction due to their lightweight, high-strength, and corrosion-resistant properties. Currently, there is a lack of a composite material structure and preparation method for bridge pier protection that combines high toughness, corrosion resistance, and long-term stability. Summary of the Invention

[0006] The purpose of the present invention is to overcome the problems in the prior art of poor protection against water surface surge impact and corrosion of bridge piers, cumbersome installation, high cost and short service life, and to provide a composite protective belt and its protective structure for water surface bridge piers that are flexible, low cost, simple to install, have good protection effect and long service life.

[0007] To achieve the above objectives, the technical solution of the present invention is:

[0008] In a first aspect, the present invention provides a composite protective belt for water-surface bridge piers, comprising: a plastic-shaped metal core wire, a hydraulic shaping material, a tubular covering fabric, and a positioning protective braided layer, wherein the tubular covering fabric is sleeved over the plastic-shaped metal core wire, the hydraulic shaping material is filled between the tubular covering fabric and the plastic-shaped metal core wire, and the positioning protective braided layer is sleeved over the tubular covering fabric;

[0009] The plastic-forming metal core wire is used to provide initial plastic shaping force for the installation of the protective belt; the water-hardening shaping material is used to harden and shape when it comes into contact with water during the installation of the protective belt; the tubular covering fabric is used to cover the plastic-forming metal core wire and the water-hardening shaping material; the positioning protective braided layer is a tubular braided structure with side braids, which is used to improve the weather corrosion resistance of the protective belt.

[0010] The positioning protection braided layer comprises a tubular braided body and side braided belts of an integral structure, and the yarns at the connection between the tubular braided body and the side braided belts are woven in an interwoven manner.

[0011] The wall thickness of the tubular braided body is 0.2mm-5mm, and the outer diameter of the tubular braided body is 5mm-200mm; the width of the side braided belt is 5mm-300mm; and the width of the side braided belt is 0.5-2.5 times the outer diameter of the tubular braided body.

[0012] The tubular braided body and the side braided belts are both woven from one of basalt fibers, glass fibers, quartz fibers, carbon fibers, alumina fibers, ultra-high molecular weight polyethylene fibers, aramid fibers, and polyimide fibers.

[0013] The plastic shaped metal core wire is one of steel wire, aluminum alloy wire, copper wire, nickel wire and titanium alloy wire;

[0014] The surface of the plastically shaped metal core wire is provided with a texture for improving bonding strength.

[0015] The hydraulic setting material is a mixture of underwater cement and a solid cement modifier.

[0016] The tubular covering fabric is a thin tubular structural fabric woven from polypropylene fibers, polyamide fibers, polyester fibers or polyethylene fibers, and the thickness of the tubular covering fabric is 0.1 mm to 0.2 mm.

[0017] In a second aspect, the present invention provides a composite protective structure for water-surface bridge piers, wherein the composite protective structure is formed by wrapping the aforementioned composite protective tape for water-surface bridge piers around the piers and then adding water to shape the tape;

[0018] The tubular braided body of the composite protection belt is stacked and wound layer by layer in a vertical direction. The tubular braided body of the composite protection belt compresses the side braided belts of the adjacent layers and is wound outside the bridge pier.

[0019] The width of the side braids is 1.5-2.5 times the outer diameter of the tubular braided body, and the side braids of adjacent layers are fixed by sewing with silk threads or by buckles or tie bands.

[0020] In a third aspect, the present invention provides a method for using a composite protective strip for a water surface bridge pier, comprising the following steps:

[0021] S1. Wrapping the aforementioned composite protective tape for water-surface bridge piers layer by layer in a tightly compressed manner on a position close to the horizontal plane of the pier surface. During the wrapping process, the tubular braid of the protective tape of the Nth layer needs to be tightly attached to the tubular braid of the protective tape of the N-1th layer. During the wrapping process, the tubular braid of the protective tape of the Nth layer presses the side braid of the N-1th layer.

[0022] After S2 is wound to the set height, the head and tail ends of the protective belt are tied and fixed with inorganic fiber ropes;

[0023] After S3 fixing is completed, the protective tape is sprayed with fresh water to solidify and set, and a composite protective structure for water surface bridge piers is obtained.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The composite protective belt for water surface bridge piers of the present invention is designed according to a multi-layer protective structure. The plastic-shaped metal core wire has flexible plasticity, which is convenient for shaping during the installation and construction stage. The hydraulic shaping material has the advantage of being solidifiable by adding water, and the operation and construction are simple. After solidification, it has good mechanical properties, long-term durability, and good impact resistance. The tubular covering fabric is soft and thin, can play a good packaging role, is convenient for preparation and construction, and has low cost. The positioning protective braided layer adopts a special braiding structure design. The cylindrical part of the tubular braided body is convenient for winding and protecting the middle cement material and the plastic-shaped metal core wire. The side braided belt part can be overlapped to prevent water waves and organisms from directly eroding and adhering to the surface of the bridge pier, thereby playing a very good protective role.

[0026] 2. The composite protective belt for water surface bridge piers of the present invention is made of inorganic materials, which can reduce the impact on the water environment as much as possible. At the same time, it uses the characteristics of the material itself, takes into account climate corrosion factors, biological corrosion factors, salt corrosion factors, and wind and wave resistance factors, and effectively extends the service life of the protective structure; at the same time, the design of the strip structure takes into account the advantages of manufacturing costs and transportation and installation costs, and has greater market competitiveness.

[0027] 3. The composite protective structure for water surface bridge piers of the present invention utilizes a side braided belt structure to fill the gaps in the wrapping and winding, increase the friction during installation, and greatly optimize the protection and installation and fixing performance of the design.

[0028] 4. The method of using the composite protective belt for water surface bridge piers of the present invention only requires winding and adding water to solidify to complete the installation, which is convenient for installation and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the composite protective belt of the present invention.

[0030] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure.

[0031] Figure 3 Schematic diagram of the composite protective structure of the present invention.

[0032] Figure 4 It is a schematic diagram of the installation of the composite protective structure of the present invention.

[0033] Figure 5 Schematic diagram of different installation methods of the composite protective structure in an embodiment of the present invention.

[0034] Figure 6 This is a physical reference diagram of the positioning protective braided layer of the present invention.

[0035] In the figure: plastic shaping metal core wire 1, hydraulic shaping material 2, tubular covering fabric 3, positioning protection braided layer 4, tubular braided body 41, side braided belt 42. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Example 1:

[0038] See also Figures 1 to 2 A composite protective belt for water-surface bridge piers, comprising: a plastic-shaped metal core wire 1, a hydraulic shaping material 2, a tubular covering fabric 3, and a positioning protective braided layer 4. The tubular covering fabric 3 is sleeved on the outside of the plastic-shaped metal core wire 1, the hydraulic shaping material 2 is filled between the tubular covering fabric 3 and the plastic-shaped metal core wire 1, and the positioning protective braided layer 4 is sleeved on the outside of the tubular covering fabric 3;

[0039] The plastic-shaped metal core wire 1 is used to provide initial plastic shaping force for the installation of the protective belt; the water-hardening shaping material 2 is used to harden and shape when it encounters water during the installation of the protective belt; the tubular covering fabric 3 is used to cover the plastic-shaped metal core wire 1 and the water-hardening shaping material 2; the positioning protective braided layer 4 is a tubular braided structure with side braids, which is used to improve the weather corrosion resistance of the protective belt.

[0040] The positioning protective braided layer 4 includes a tubular braided body 41 and a side braided belt 42 of an integral structure, and the yarns at the connection between the tubular braided body 41 and the side braided belt 42 are woven in an interwoven manner.

[0041] The wall thickness of the tubular braided body 41 is 0.2mm-5mm, and the outer diameter of the tubular braided body 41 is 5mm-200mm; the width of the side braided belt 42 is 5mm-300mm; and the width of the side braided belt 42 is 0.5-2.5 times the outer diameter of the tubular braided body 41.

[0042] The tubular braided body 41 and the side braided belt 42 are both woven from one of basalt fiber, glass fiber, quartz fiber, carbon fiber, alumina fiber, ultra-high molecular weight polyethylene fiber, aramid fiber, and polyimide fiber.

[0043] 1. It is water permeable and liquid can penetrate directly.

[0044] 2. Stable performance and can withstand climate corrosion, biological corrosion and salt corrosion.

[0045] 3. Adjustable thickness. Different braid diameters and thicknesses can be selected according to different usage environments to cope with different usage scenarios. Large diameters and thicker thicknesses can effectively improve wind and wave resistance. Small size designs are suitable for river piers.

[0046] The plastically shaped metal core wire 1 is one of steel wire, aluminum alloy wire, copper wire, nickel wire, and titanium alloy wire;

[0047] The surface of the plastically shaped metal core wire 1 is provided with a texture for improving the bonding strength.

[0048] The thickness of the plastic-shaped metal core wire 1 can be adjusted according to the diameter of the tubular braided body 41. When the diameter exceeds the set diameter, multiple metal wires are used in parallel as the plastic-shaped metal core wire 1.

[0049] The hydraulic setting material 2 is a mixture of underwater cement and a solid cement modifier.

[0050] The hydraulic shaping material 2 can cover the plastic shaped metal core wire 1 after solidification to form a composite shaping structure, combining the shaping advantages of metal and the protective advantages of cement, and effectively achieving overall reinforcement and protection.

[0051] The tubular covering fabric 3 is a thin tubular structural fabric woven from polypropylene fibers, polyamide fibers, polyester fibers or polyethylene fibers, and the thickness of the tubular covering fabric 3 is 0.1 mm to 0.2 mm.

[0052] The tubular covering fabric 3 needs to be densely woven to prevent cement from leaking out of the gaps.

[0053] See also Figure 6 In order to locate the braided structure of the protective braided layer 4, a photo reference is provided because the structure is relatively complex and difficult to represent in a drawing.

[0054] Example 2:

[0055] See also Figures 3 to 5 The present invention provides a composite protective structure for water surface bridge piers, wherein the composite protective structure is formed by wrapping the aforementioned composite protective belt for water surface bridge piers around the bridge piers and then adding water to shape the structure;

[0056] The tubular braided body 41 of the composite protection belt is stacked and wound layer by layer in a vertical direction. The tubular braided body 41 of the composite protection belt compresses the side braided belts 42 of the adjacent layers and is wound around the outside of the bridge pier.

[0057] The width of the side braids 42 is 1.5-2.5 times the outer diameter of the tubular braided body 41 , and the side braids 42 of adjacent layers are fixed by sewing with silk threads or by buckles or tie bands.

[0058] See also Figure 5 The composite protective belt has multiple installation and fixing methods. The side braided belt 42 is directly wrapped upward or downward. The side braided belt 42 can cover the bridge pier inside (method 1) or outside (method 2). The side braided belts 42 of adjacent layers are spaced at a fixed distance and fixed by sewing with silk thread or buckles and ties (methods 3 and 4).

[0059] The buckles and cable ties are preferably made of plastic or metal. The opening adopts a needle buckle to pass through the gap of the side braided belt 42. The strap body adopts a narrow strap design to facilitate passing through the gap of the side braided belt 42.

[0060] Example 3:

[0061] The present invention provides a method for using a composite protective strip for a water surface bridge pier, comprising the following steps:

[0062] S1: Wrapping the aforementioned composite protective tape for water-surface bridge piers layer by layer in a tightly compressed manner on a position close to the horizontal plane of the pier surface. During the wrapping process, the tubular braided body 41 of the protective tape of the Nth layer needs to be tightly attached to the tubular braided body 41 of the protective tape of the N-1th layer. During the wrapping process, the tubular braided body 41 of the protective tape of the Nth layer presses the side braided tape 42 of the N-1th layer.

[0063] After S2 is wound to the set height, the head and tail ends of the protective belt are tied and fixed with inorganic fiber ropes;

[0064] After S3 fixing is completed, the protective tape is sprayed with fresh water to solidify and set, and a composite protective structure for water surface bridge piers is obtained.

[0065] Water is added to the composite material wrapped around the bridge pier to ensure that the water penetrates the core layer. After 20 hours, the composite material solidifies.

[0066] Example 4:

[0067] Example 4 is basically the same as Example 1, except that:

[0068] The plastic shaped metal core wire 1 is flexible and plastic, and the plastic shaped metal core wire 1 is a steel wire with a diameter of 1 mm;

[0069] The tubular covering fabric 3 is woven from polyester fibers.

[0070] The positioning protection braided layer 4 is woven by a modified braiding machine, and the positioning protection braided layer 4 is woven by basalt fibers.

[0071] Example 5:

[0072] Intermediate material assembly: Insert the plastic shaping metal core wire 1 into the middle of the tubular covering fabric 3. Mix underwater cement and solid cement modifier in appropriate proportions to form a hydraulic shaping material 2. Pour the hydraulic shaping material 2 into the tubular covering fabric 3 to obtain the intermediate material.

[0073] Weaving and positioning the protective braided layer: Place the assembled intermediate material in the middle of the braiding machine, then position the protective braided layer 4 on the outside of the intermediate material to obtain a composite protective belt, and wind the composite protective belt for use; the preparation is now complete.

[0074] Positioning protective braided layer wrapped around bridge piers: Wrap the composite protective belt around the water surface of the bridge pier in a spiral spinning manner;

[0075] Add water to solidify the composite protective tape: Add water to the composite protective tape wrapped around the bridge pier to ensure that the water penetrates the core layer. After 8-24 hours, the composite material solidifies.

[0076] Composite protective belt reinforcement: The head and end of the composite material are tied with ropes made of one of polypropylene, polyamide, polyester, and polyethylene.

[0077] For fixing the installation position of the composite protective structure, its bottom can be installed on the foundation of the pier (see Figure 4 ), providing bottom limiting support for the composite protective structure.

Claims

1. A composite protective strip for water surface bridge piers, characterized in that: include: A plastic shaped metal core wire (1), a hydraulic shaping material (2), a tubular covering fabric (3) and a positioning protective braided layer (4), wherein the tubular covering fabric (3) is sleeved on the outside of the plastic shaped metal core wire (1), the hydraulic shaping material (2) is filled between the tubular covering fabric (3) and the plastic shaped metal core wire (1), and the positioning protective braided layer (4) is sleeved on the outside of the tubular covering fabric (3); The plastic-shaped metal core wire (1) is used to provide an initial plastic shaping force for the installation of the protective belt; the water-hardening shaping material (2) is used to harden and shape when encountering water during the installation of the protective belt; the tubular covering fabric (3) is used to cover the plastic-shaped metal core wire (1) and the water-hardening shaping material (2); the positioning protective braided layer (4) is a tubular braided structure with side braids, which is used to improve the weather corrosion resistance of the protective belt.

2. The composite protection strip for water surface bridge piers according to claim 1, characterized in that: The positioning protective braided layer (4) comprises a tubular braided body (41) and a side braided belt (42) of an integral structure, wherein the yarns at the connection between the tubular braided body (41) and the side braided belt (42) are woven in an interwoven manner.

3. The composite protection strip for water surface bridge piers according to claim 2, characterized in that: The wall thickness of the tubular braided body (41) is 0.2 mm to 5 mm, and the outer diameter of the tubular braided body (41) is 5 mm to 200 mm; the width of the side braided band (42) is 5 mm to 300 mm; and the width of the side braided band (42) is 0.5 to 2.5 times the outer diameter of the tubular braided body (41).

4. The composite protection strip for water surface bridge piers according to claim 2, characterized in that: The tubular braided body (41) and the side braided belt (42) are both woven from one of basalt fiber, glass fiber, quartz fiber, carbon fiber, alumina fiber, ultra-high molecular weight polyethylene fiber, aramid fiber, and polyimide fiber.

5. The composite protection strip for water surface bridge piers according to claim 1, characterized in that: The plastically shaped metal core wire (1) is one of steel wire, aluminum alloy wire, copper wire, nickel wire, and titanium alloy wire; The surface of the plastically shaped metal core wire (1) is provided with a texture for improving the bonding strength.

6. The composite protection strip for water surface bridge piers according to claim 1, characterized in that: The hydraulic setting material (2) is a mixture of underwater cement and a solid cement modifier.

7. The composite protection strip for water surface bridge piers according to claim 1, characterized in that: The tubular covering fabric (3) is a thin tubular structural fabric woven from polypropylene fibers, polyamide fibers, polyester fibers or polyethylene fibers, and the thickness of the tubular covering fabric (3) is 0.1-0.2 mm.

8. A composite protective structure for a water-surface bridge pier, characterized by: The composite protective structure is formed by wrapping the composite protective strip for water surface bridge piers according to any one of claims 1 to 7 around the bridge piers and then adding water to shape the strips; The tubular braided body (41) of the composite protective belt is stacked and wound layer by layer in a vertical direction, and the tubular braided body (41) of the composite protective belt presses the side braided belts (42) of the adjacent layers and is wound around the outside of the bridge pier.

9. The composite protective structure for water surface bridge piers according to claim 8, characterized in that: The width of the side braid (42) is 1.5-2.5 times the outer diameter of the tubular braid (41), and the side braids (42) of adjacent layers are fixed by sewing with silk threads or by buckling or tying.

10. A method for using a composite protective belt for a water surface bridge pier, characterized in that: The steps include: S1. Wrapping the composite protective belt for water surface bridge piers according to any one of claims 1 to 7 layer by layer in a tightly compressed manner at a position close to the horizontal plane on the surface of the bridge pier. During the winding process, the tubular braid (41) of the protective belt of the Nth layer needs to be tightly attached to the tubular braid (41) of the protective belt of the N-1th layer. During the winding process, the tubular braid (41) of the protective belt of the Nth layer presses the side braid (42) of the N-1th layer. After S2 is wound to the set height, the head and tail ends of the protective belt are tied and fixed with inorganic fiber ropes; After S3 fixing is completed, the protective tape is sprayed with fresh water to solidify and set, and a composite protective structure for water surface bridge piers is obtained.

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