Underwater pile foundation scouring protection device with anti-scouring holes

By designing a erosion protection device with anti-swage holes on the underwater pile foundation, the water flow erosion force is reduced by using protective nets and through holes, and the sand and gravel flow rate is slowed down through protective grooves, the wear and stability of the underwater pile foundation is solved and the service life is extended.

CN222949062UActive Publication Date: 2025-06-06ZHEJIANG UNIV OF TECH
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Patent Information

Application Number
CN202422160628.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-04
Publication Date
2025-06-06
Estimated Expiration
2034-09-04

AI Technical Summary

Technical Problem

Underwater pile foundations are prone to wear under the impact of the subsea water flow, shorten their service life, and the sand and gravel carried away by the water flow make the pile foundation shallow, affecting stability.

Method used

An underwater pile foundation erosion protection device with anti-swage holes is designed, including a support and protective components. The protective component consists of a protective net, a flow hole, a connecting block and a reinforcement block. The side surface of the protective net is equipped with a flow hole to reduce the erosion force of the water flow. The protective groove at the bottom drops and fills the sand and gravel through inertia to slow down the flow rate of the sand and gravel.

Benefits of technology

By reducing the impact force of water flow on column piles, extending the service life of column piles, and slowing down the flow rate of sand and gravel by filling protective grooves, avoiding sand and gravel directly eroding the bottom, improving the stability and service life of column piles.

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Abstract

The utility model relates to the technical field of protection devices, in particular to an underwater pile foundation scouring protection device with anti-scouring holes, which comprises a bearing platform, a protection assembly is arranged at the top of the bearing platform, the protection assembly comprises a protection net, the protection net is arranged at the top of the bearing platform, and the side surface of the protection net is provided with circulation holes. According to the underwater pile foundation scouring protection device with the anti-scouring holes, through installation of the protection assemblies, scouring of water flow to a pile can be reduced through the circulation holes formed in the outermost protection net, when the water flow impacts the protection nets, most of the water can be isolated by the protection nets, and the other small part of the water can smoothly penetrate through the circulation holes, so that the water flow is prevented from entering the pile; the impact force on the column pile is reduced, the protective groove in the bottom can fall into the protective groove in the bottom through inertia when the top is scoured by gravel, the protective groove can be filled with the gravel as time increases, the top layer can be washed away by water flow, then the protective groove continues to be filled with the gravel, and the process is repeated.
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Description

Technical Field

[0001] The utility model relates to the technical field of protective devices, in particular to an underwater pile foundation scour protection device with anti-scour holes. Background Art

[0002] Underwater pile foundation is a special type of pile foundation, which is mainly used to support various above-water and underwater buildings, such as ports, offshore airports, artificial islands, etc., aiming to improve the bearing capacity and stability of the building and ensure its safe use in the marine environment.

[0003] Existing underwater pile foundations usually use anchoring devices to fix the piles on the seabed. However, due to the fast water flow speed on the seabed, the water flow will cause a large impact force on the pile foundation, which will cause wear on the pile foundation, thereby reducing the service life of the pile foundation. In addition, the water flow will carry away the sand and gravel around the pile foundation, making the pile foundation shallower, thereby affecting the stability. Therefore, we provide an underwater pile foundation scour protection device with an anti-scour hole. Utility Model Content

[0004] The purpose of the utility model is to provide an underwater pile foundation scour protection device with anti-scour holes to solve the problem raised in the above background technology that due to the fast water flow speed on the seabed, the water flow will cause a large impact force on the pile foundation, thereby causing wear on the pile foundation, thereby reducing the service life of the pile foundation, and under the action of the water flow, the sand and gravel around the pile foundation will be taken away, thereby making the pile foundation shallower, thereby affecting the stability. To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an underwater pile foundation scour protection device with anti-scour holes, comprising a pedestal, a protection assembly is arranged on the top of the pedestal, the protection assembly comprises a protection net, the protection net is arranged on the top of the pedestal, a flow hole is opened on the side surface of the protection net, a connecting block is fixedly connected to the side surface of the protection net, a threaded hole is opened inside the connecting block, a fastening bolt is threadedly connected to the inner wall of the threaded hole, and a reinforcement block is fixedly connected to the bottom of the protection net. By installing the protection assembly, the flow holes opened on the outermost protection net can be used to reduce the scouring of the column pile by the water flow. When the water flow impacts the protection net, most of the water will be isolated by the protection net, and another small part of the water will smoothly pass through the flow holes to reduce the impact force on the column pile. When the sand and gravel are washed to the top, the protection groove at the bottom can fall into the inside of the protection groove at the bottom by inertia. As time goes by, the protection groove will be filled, and the water flow will wash away the top layer and then continue to be filled, and so on.

[0005] Further preferably, a protective groove is fixedly connected to the inner wall of the support platform, and a side surface of the protective groove is provided with an anti-wear coating.

[0006] Further preferably, the inner wall of the protective net is provided with a reinforcement component, and the reinforcement component includes a waterproof pipe, the waterproof pipe is movably connected to the inner wall of the protective net, the waterproof pipe is fixedly connected to the inner wall of the reinforcement block, and the side surface of the waterproof pipe is provided with an anti-corrosion coating. By installing the reinforcement component, the outer waterproof pipe can effectively prevent seawater from entering the interior, and the side surface of the waterproof pipe is coated with an anti-corrosion coating, which can effectively slow down the degree of corrosion, and the reinforced steel bars inside the waterproof pipe can effectively reinforce the column piles, and finally the concrete reinforcement piles inside the column piles can play a role of fixing and stabilization.

[0007] Further preferably, the inner wall of the waterproof pipe is fixedly connected with a reinforcing steel bar, the inner wall of the reinforcing steel bar is fixedly connected with a column pile, and the inner wall of the column pile is fixedly connected with a concrete reinforcement pile.

[0008] Further preferably, the top of the pedestal is fixedly connected with a connecting head, and the bottom of the connecting head is fixedly connected with a conical pile. By installing the conical pile, the conical pile can be inserted into the seabed, thereby fixing the pedestal.

[0009] Further preferably, the top of the pedestal is fixedly connected with a fixing block, and the top of the fixing block is fixedly connected with a lifting ring. By installing the lifting ring, the pedestal can be lowered into the seabed through the lifting ring by an external crane, and by installing four lifting rings, the pedestal can be very stable during the process of lifting and lowering.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] In the utility model, by installing the protection component, the flow holes opened on the outermost protection net can be used to reduce the scouring of the column pile by the water flow. When the water flow hits the protection net, most of the water will be isolated by the protection net, and another small part of the water will smoothly pass through the flow holes to reduce the impact force on the column pile, thereby slowing down the scouring of the column pile and thus increasing the service life of the column pile. When the sand and gravel are washed to the top, the protection groove at the bottom can fall into the inside of the protection groove at the bottom by inertia. As time goes by, the protection groove will be filled, and the water flow will wash away the top layer, and then continue to be filled, and so on, thereby slowing down the flow speed of the sand and gravel, thereby preventing the sand and gravel from directly scouring the bottom column pile, slowing down the wear of the column pile and increasing its service life.

[0012] In the utility model, by installing a reinforcement component, the outer waterproof pipe can effectively prevent seawater from entering the interior and causing corrosion to the columns and piles, and the side surface of the waterproof pipe is coated with an anti-corrosion coating, which can effectively slow down the degree of corrosion, and the reinforced steel bars inside the waterproof pipe can effectively reinforce the columns and piles. Finally, the concrete reinforcement piles inside the columns and piles can play a role of fixing and stabilizing, greatly increasing the stability of the columns and piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0016] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the reinforcement component of the utility model;

[0017] Figure 5 For this utility model Figure 4 Enlarged structural diagram at B in the middle.

[0018] In the figure: 1. Cap; 2. Protection component; 3. Reinforcement component; 4. Connector; 5. Conical pile; 6. Fixing block; 7. Lifting ring; 201. Protection net; 202. Flow hole; 203. Connecting block; 204. Threaded hole; 205. Fastening bolt; 206. Reinforcement block; 207. Protection groove; 208. Anti-wear coating; 301. Waterproof pipe; 302. Anti-corrosion coating; 303. Reinforced steel bar; 304. Column pile; 305. Concrete reinforcement pile. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 5The utility model provides a technical solution: an underwater pile foundation scour protection device with anti-scour holes, comprising a cap 1, a protective assembly 2 is arranged on the top of the cap 1, the protective assembly 2 comprises a protective net 201, the protective net 201 is arranged on the top of the cap 1, a flow hole 202 is opened on the side surface of the protective net 201, a connecting block 203 is fixedly connected to the side surface of the protective net 201, a threaded hole 204 is opened inside the connecting block 203, a fastening bolt 205 is threadedly connected to the inner wall of the threaded hole 204, a reinforcing block 206 is fixedly connected to the bottom of the protective net 201, and the protective assembly is installed. 2. The flow holes 202 opened on the outermost protection net 201 can be used to reduce the scouring of the column pile 304 by the water flow. When the water flow hits the protection net 201, most of the water will be isolated by the protection net 201, and another small part of the water will smoothly pass through the flow holes 202, reducing the impact force on the column pile 304. When the sand and gravel are washed to the top, the protection groove 207 at the bottom can fall into the inside of the protection groove 207 at the bottom by inertia. As time goes by, the protection groove 207 will be filled up, and the water flow will wash away the top layer, and then continue to be filled, and so on.

[0021] In this embodiment, Figure 2 and Figure 3 As shown, a protective groove 207 is fixedly connected to the inner wall of the base 1 , and an anti-wear coating 208 is provided on the side surface of the protective groove 207 .

[0022] In this embodiment, Figure 4 and Figure 5 As shown, the inner wall of the protective net 201 is provided with a reinforcement component 3, and the reinforcement component 3 includes a waterproof pipe 301, which is movably connected to the inner wall of the protective net 201, and the waterproof pipe 301 is fixedly connected to the inner wall of the reinforcement block 206. The side surface of the waterproof pipe 301 is provided with an anti-corrosion coating 302. By installing the reinforcement component 3, the outer waterproof pipe 301 can effectively prevent seawater from entering the interior, and the side surface of the waterproof pipe 301 is coated with the anti-corrosion coating 302, which can effectively slow down the degree of corrosion, and the reinforcement steel bars 303 inside the waterproof pipe 301 can effectively reinforce the column pile 304, and finally the concrete reinforcement pile 305 inside the column pile 304 can play a role of fixing and stabilization.

[0023] In this embodiment, Figure 4 and Figure 5 As shown, the inner wall of the waterproof pipe 301 is fixedly connected with a reinforcing steel bar 303 , the inner wall of the reinforcing steel bar 303 is fixedly connected with a column pile 304 , and the inner wall of the column pile 304 is fixedly connected with a concrete reinforcement pile 305 .

[0024] In this embodiment, Figure 1As shown, the top of the cap 1 is fixedly connected with a connector 4, and the bottom of the connector 4 is fixedly connected with a conical pile 5. By installing the conical pile 5, the conical pile 5 can be inserted into the seabed, thereby fixing the cap 1.

[0025] In this embodiment, Figure 1 As shown, the top of the support 1 is fixedly connected with a fixing block 6, and the top of the fixing block 6 is fixedly connected with a lifting ring 7. By installing the lifting ring 7, the support 1 can be lowered into the seabed through the lifting ring 7 by an external crane, and by installing four lifting rings 7, the support 1 can be very stable during the process of lifting and lowering.

[0026] The use method and advantages of the utility model: When the underwater pile foundation scour protection device with anti-scour holes is used, the working process is as follows:

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, when in use, first use an external crane to place the foundation 1 into the seabed through four lifting rings 7, then fix the foundation 1 by inserting the conical pile 5 into the seabed, and then use the flow holes 202 opened on the outermost protection net 201 to reduce the scouring of the column pile 304 by the water flow. When the water flow hits the protection net 201, most of the water will be isolated by the protection net 201, and another small part of the water will smoothly pass through the flow holes 202, reducing the impact force on the column pile 304, and the bottom protection groove 207 can fall into the inside of the bottom protection groove 207 by inertia when the sand and gravel are washed to the top. As time goes by, the protection groove 207 will be filled, and the water flow will wash away the top layer, and then continue to be filled, and so on.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An underwater pile foundation scour protection device with scour prevention holes, comprising a cap (1), characterized in that: A protective component (2) is arranged on the top of the support platform (1), and the protective component (2) comprises a protective net (201), the protective net (201) is arranged on the top of the support platform (1), a flow hole (202) is provided on the side surface of the protective net (201), a connecting block (203) is fixedly connected to the side surface of the protective net (201), a threaded hole (204) is provided inside the connecting block (203), a fastening bolt (205) is threadedly connected to the inner wall of the threaded hole (204), and a reinforcing block (206) is fixedly connected to the bottom of the protective net (201).

2. The underwater pile foundation scour protection device with scour prevention holes according to claim 1, characterized in that: The inner wall of the support platform (1) is fixedly connected with a protective groove (207), and the side surface of the protective groove (207) is provided with an anti-wear coating (208).

3. The underwater pile foundation scour protection device with scour prevention holes according to claim 1, characterized in that: The inner wall of the protective net (201) is provided with a reinforcement component (3), and the reinforcement component (3) includes a waterproof tube (301), the waterproof tube (301) is movably connected to the inner wall of the protective net (201), the waterproof tube (301) is fixedly connected to the inner wall of the reinforcement block (206), and the side surface of the waterproof tube (301) is provided with an anti-corrosion coating (302).

4. The underwater pile foundation scour protection device with scour prevention holes according to claim 3, characterized in that: The inner wall of the waterproof pipe (301) is fixedly connected with a reinforcing steel bar (303), the inner wall of the reinforcing steel bar (303) is fixedly connected with a column pile (304), and the inner wall of the column pile (304) is fixedly connected with a concrete reinforcing pile (305).

5. The underwater pile foundation scour protection device with scour prevention holes according to claim 1, characterized in that: The top of the support platform (1) is fixedly connected to a connecting head (4), and the bottom of the connecting head (4) is fixedly connected to a conical pile (5).

6. The underwater pile foundation scour protection device with scour prevention holes according to claim 1, characterized in that: The top of the support platform (1) is fixedly connected to a fixing block (6), and the top of the fixing block (6) is fixedly connected to a lifting ring (7).