A port wharf pile body concrete pile cap anti-collision buffer device

Abstract

The application discloses a kind of port wharf pile body concrete pile cap anti-collision buffer device, including buffer cap and fixed fastening assembly;The buffer cap is set to the outside of concrete pile cap, and is fastened by the fixed fastening assembly Connection concrete pile cap.The fixed fastening assembly includes U-shaped metal fixing ring and rectangular metal fixing ring;The rectangular metal fixing ring is transversely set to the outside of the buffer cap, the U-shaped metal fixing ring is vertically set to the outside of the buffer cap, and the U-shaped metal fixing ring is located outside the rectangular metal fixing ring;The tightening bolt is sequentially penetrated U-shaped metal fixing ring, rectangular metal fixing ring and buffer cap, and is connected to the concrete pile cap, realizes fastening connection.The purpose of the application is to overcome the existing defects and provide a kind of port wharf pile body concrete pile cap anti-collision buffer device, compact structure, buffering energy-absorbing effect is good, fixed firm, excellent sealing corrosion resistance.

Description

Technical Field

[0001] This invention relates to a concrete pile cap anti-collision buffer device for port and wharf piles. Background Technology

[0002] Port and wharf pile foundations are the core load-bearing structures supporting wharf platforms, trestle bridges, and lifting equipment. Concrete pile caps, as key protective components at the top of the pile foundation, play a crucial role in distributing the upper load, protecting the pile reinforcement, and sealing the pile top structure. They are fundamental components ensuring the overall structural safety of the wharf. The operating environment in port and wharf waters is complex, and concrete pile caps are constantly subjected to harsh working conditions, suffering continuous damage from various external forces and environmental erosion.

[0003] On the one hand, minor scrapes and collisions are likely to occur when ships are berthing or operating off shore. Floating driftwood, construction waste, and aquaculture debris in the water will repeatedly hit the pile cap with the wind and waves. Long-term repeated impact loads will cause damage such as peeling, cracking, and missing corners on the surface of the concrete pile cap. In severe cases, it will cause the pile cap to break completely, exposing the internal steel bars and losing its protective function for the pile foundation. On the other hand, the high salt spray and high humidity marine climate in the port area, combined with the alternating wet and dry tides and the freezing and thawing weathering in winter, can penetrate into the concrete through the tiny cracks in the pile cap, causing steel corrosion, concrete crumbling, and a decrease in structural strength, which will significantly shorten the service life of the pile foundation. In severe cases, it will affect the overall load-bearing stability of the wharf and cause safety hazards.

[0004] In existing technologies, the protective methods for wharf pile caps are relatively simple, with conventional protection methods mostly involving simple application of anti-corrosion coatings, wrapping with ordinary rubber pads, or wrapping with protective strips. Among these, applying anti-corrosion coatings only provides basic corrosion protection and has no cushioning or impact resistance, making it unable to withstand impacts, and the coating is prone to peeling off as the concrete cracks; the ordinary rubber pad wrapping protective structure is simple, has poor stability, and is prone to displacement and detachment after impact, and lacks a sealing structure at the ends, allowing seawater salt spray to easily penetrate the gap between the rubber pad and the pile cap, causing internal corrosion; some metal protective frame structures have high rigidity and poor cushioning, and rigid impacts can easily exacerbate pile cap damage, and the connection points have insufficient sealing and are prone to loosening, resulting in a significant decrease in protective effectiveness over long-term use.

[0005] Therefore, a concrete pile cap anti-collision buffer device for port and wharf piles is proposed to address the above problems. Summary of the Invention

[0006] The purpose of this invention is to overcome the existing defects and provide a concrete pile cap anti-collision buffer device for port and wharf piles, which has a compact structure, good buffering and energy absorption effect, firm fixation, and excellent sealing and corrosion protection performance.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a concrete pile cap anti-collision buffer device for port wharf piles, comprising: Buffer cap and fastening assembly; The buffer cap is fitted over the concrete pile cap and is securely connected to the concrete pile cap by the fixing and fastening assembly.

[0008] Preferably, the fixing and fastening assembly includes: U-shaped metal retaining rings and rectangular metal retaining rings; The rectangular metal retaining ring is horizontally fitted onto the outside of the buffer cap, and the U-shaped metal retaining ring is vertically fitted onto the outside of the buffer cap, with the U-shaped metal retaining ring located outside the rectangular metal retaining ring; The set bolt passes through the U-shaped metal retaining ring, the rectangular metal retaining ring, and the buffer cap in sequence, and is connected to the concrete pile cap to achieve a fastening connection.

[0009] Preferably, it further includes a sealing gasket layer disposed inside the set bolt.

[0010] Preferably, it also includes a flexible rubber sealing core; the lower end of the concrete pile cap is connected to a concrete pile, and the flexible rubber sealing core is connected at the connection between the buffer cap and the concrete pile.

[0011] Preferably, the buffer cap is an integrated ring-shaped cap structure made of high-elasticity and wear-resistant composite rubber material.

[0012] Preferably, the outer surface of the rectangular metal retaining ring is provided with a nested groove that is adapted to the U-shaped metal retaining ring, and the nested groove is provided with a bolt through hole concentric with the U-shaped metal retaining ring for the set bolt to pass through.

[0013] Preferably, the flexible rubber sealing core has a ring structure, is sleeved on the concrete pile, and its upper end face is tightly fitted with the buffer cap.

[0014] Preferably, the outer surface of the buffer cap is coated with an anti-corrosion and wear-resistant coating.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The concrete pile cap anti-collision buffer device for port terminal piles adopts an integrated high-elasticity buffer cap as the core anti-collision structure. Utilizing the high elasticity energy absorption characteristics of composite rubber, it can effectively dissipate the kinetic energy generated by ship scraping, floating object impact, and wind and wave impact, and avoid the concrete pile cap directly bearing rigid impact. It completely solves the problems of traditional protective structures having no buffer, being prone to cracking, and being damaged by the pile body, and protects the integrity of the concrete structure of the pile cap in all aspects.

[0016] The system employs a nested, encircling fixing structure with U-shaped and rectangular metal fixing rings, along with a double-locking design using set bolts and double anti-loosening nuts. This allows for comprehensive and secure positioning of the buffer cap, effectively preventing displacement, detachment, and loosening of the buffer cap under conditions of high-frequency vibration and repeated impacts at the dock. Compared to traditional binding and single-ring fixing structures, this system offers significantly improved stability and reliability.

[0017] By sealing the gaps in metal connections and bolt gaps with a sealing rubber pad, and combining this with the flexible rubber sealing core at the lower end to wrap and seal the gaps in the pile body, a fully sealed protection system without dead angles is formed. This effectively prevents seawater, salt spray, silt, and rainwater from intruding into the gap between the pile cap and the buffer cap, preventing concrete corrosion, steel reinforcement rust, and structural aging, and significantly extending the service life of the wharf pile foundation. At the same time, the anchoring depth of the set bolts is limited to no more than the thickness of the concrete protective layer, effectively avoiding the problem of bolt drilling damaging the steel reinforcement protective layer and touching the internal steel reinforcement, thus ensuring the original structural strength and durability of the pile foundation.

[0018] Adopting a modular, non-destructive installation design, it does not require damage to the original pile structure, is easy to assemble and disassemble, has low maintenance costs, and can be adapted to concrete pile caps of different specifications, making it highly versatile. At the same time, the warning markings on the surface of the buffer cap can actively avoid the risk of impact, providing dual protection for the pile safety from both passive protection and active warning aspects, effectively reducing the probability of dock pile foundation failure and ensuring the safe and stable operation of the dock. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the concrete pile cap anti-collision buffer device for port and wharf piles according to the present invention. Figure 2 This is a structural diagram of the sealed cross-section of the concrete pile cap anti-collision buffer device for port and wharf piles of the present invention, excluding the pile foundation portion. Figure 3 This is a structural diagram of the sealed cross-section of the concrete pile cap anti-collision buffer device for port and wharf piles, including the pile foundation portion, according to the present invention.

[0020] In the diagram: 1. Buffer cap; 2. U-shaped metal retaining ring; 3. Rectangular metal retaining ring; 4. Set bolt; 5. Sealing rubber gasket; 6. Flexible rubber sealing core. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1-3 As shown, a concrete pile cap anti-collision buffer device for port terminal piles includes a buffer cap 1 and a fixing fastening assembly; the buffer cap 1 is sleeved on the outside of the concrete pile cap and is fastened to the concrete pile cap by the fixing fastening assembly.

[0023] Specifically, the buffer cap 1 is an integrated ring-shaped cap structure made of high-elasticity, wear-resistant composite rubber. It has a uniform overall thickness, with the inner wall completely fitting the outer wall of the concrete pile cap. The outer wall is an arc-shaped buffer surface that can disperse impact force.

[0024] Specifically, the buffer cap 1 can also be made of polyurethane composite rubber material, which has the characteristics of high elasticity, high wear resistance, impact resistance, and salt spray aging resistance. It has moderate hardness, which can effectively absorb impact kinetic energy without causing squeezing damage to the concrete pile cap, and is suitable for the long-term harsh outdoor working conditions of the port.

[0025] Specifically, the outer surface of the buffer cap 1 is coated with an anti-corrosion and wear-resistant coating and yellow warning markings, evenly distributed circumferentially, providing both anti-corrosion protection and collision warning functions. It can serve as a conspicuous warning during the day, night, and foggy weather, reducing the probability of accidental collisions between ships and operating equipment.

[0026] Specifically, the fastening assembly includes a U-shaped metal retaining ring 2 and a rectangular metal retaining ring 3. The rectangular metal retaining ring 3 is horizontally fitted onto the outside of the buffer cap 1, and the U-shaped metal retaining ring 2 is vertically fitted onto the outside of the buffer cap 1, with the U-shaped metal retaining ring 2 located outside the rectangular metal retaining ring 3. The set bolt 4 passes through the U-shaped metal retaining ring 2, the rectangular metal retaining ring 3, and the buffer cap 1 in sequence, and connects to the concrete pile cap to achieve a fastening connection. A sealing gasket 5 is also included, which is located inside the set bolt 4. The set bolt 4 is adapted to port vibration conditions, preventing the bolt from loosening and falling off, and ensuring the long-term stability of the fixed structure.

[0027] Specifically, the anchoring depth of the set bolt 4 is strictly controlled. The anchoring depth of the bolt into the concrete pile cap is no greater than the thickness of the concrete protective layer, avoiding the problem of the bolt touching the internal steel bars and damaging the steel protective layer structure, thus ensuring the structural integrity and durability of the concrete pile.

[0028] Specifically, the outer surface of the rectangular metal retaining ring 3 has a nested groove that matches the U-shaped metal retaining ring 2. The nested groove has a bolt through hole concentric with the U-shaped metal retaining ring 2 for the set bolt 4 to pass through. This achieves omnidirectional positioning of the buffer cap 1 and effectively prevents the buffer cap from shifting or falling off after being impacted or washed by wind and waves.

[0029] Specifically, both the U-shaped metal fixing ring 2 and the rectangular metal fixing ring 3 are made of galvanized carbon steel and coated with a heavy-duty anti-corrosion coating, which has excellent rust and corrosion resistance, can resist high salt spray corrosion in ports, and extend the service life of metal fixing structures.

[0030] Specifically, the sealing rubber gasket 5 is made of nitrile rubber, which has excellent elastic recovery and sealing performance. It can adapt to assembly gaps and minor vibration deformation, and continuously maintain the sealing and cushioning effect.

[0031] Specifically, it also includes a flexible rubber sealing core 6; the lower end of the concrete pile cap is connected to a concrete pile, and the flexible rubber sealing core 6 is connected at the connection between the buffer cap 1 and the concrete pile. The flexible rubber sealing core 6 has a ring structure, is fitted onto the concrete pile, and its upper end face is tightly fitted to the buffer cap 1. It is made of salt spray-resistant and aging-resistant silicone rubber, and the inner diameter of the through hole is precisely matched with the outer diameter of the concrete pile. Under pressure, it tightly wraps around the side wall of the pile body, forming an end sealing barrier. This prevents corrosive media from entering the gap between the buffer cap and the pile cap.

[0032] Specifically, the flexible rubber sealing core 6 is made of silicone rubber, which is resistant to high and low temperatures, seawater corrosion, and has excellent anti-aging properties. It is not easy to harden, crack, or fail in long-term immersion or humid environments, ensuring long-term sealing.

[0033] During installation, the first step is to clean the mud, sand, debris, and dust from the outer surface of the concrete pile cap, ensuring the pile surface is flat and dry. Then, the flexible rubber sealing core 6 is embedded and fixed into the inner groove at the lower end of the buffer cap 1. Next, the buffer cap 1 is fitted over the concrete pile cap, and its position is adjusted to completely cover the pile cap body, ensuring a tight fit between the inner wall and the pile. Subsequently, the sealing rubber pad 5 is pasted onto the connecting contact surfaces of the U-shaped metal fixing ring 2 and the rectangular metal fixing ring 3, and into the bolt holes. The U-shaped metal fixing ring 2 and the rectangular metal fixing ring 3 are nested and spliced, encircling and fitting against the upper outer part of the buffer cap 1. After aligning the bolt through holes, drilling is performed. The anchoring depth of the set bolt 4 into the concrete pile cap is strictly controlled to ensure it does not exceed the thickness of the concrete protective layer, avoiding damage to the internal reinforcing steel. Finally, the set bolt 4 is inserted, and elastic washers and anti-loosening nuts are sequentially fitted and gradually tightened to complete the overall assembly and fixing.

[0034] During dock operations, when ship collisions, floating object impacts, or wind and waves occur, the buffer cap 1 utilizes its high elasticity to undergo elastic deformation, effectively absorbing and dispersing the impact kinetic energy, preventing rigid impact forces from directly acting on the concrete pile cap, and preventing the pile body from cracking, chipping, or breaking. The U-shaped metal fixing ring 2 and the rectangular metal fixing ring 3 form a rigid embracing frame that can limit the deformation and displacement of the buffer cap 1, preventing the buffer cap 1 from falling off or shifting. The double anti-loosening bolt structure can resist wind and wave vibrations and impact disturbances, maintaining a tight state for a long time.

[0035] Meanwhile, the sealing rubber pad 5 seals the gaps in the metal structure connection and bolt gaps, and the flexible rubber sealing core 6 seals the gap between the buffer cap 1 and the end of the pile. The double sealing structure forms an all-round protective barrier, effectively preventing seawater, salt spray, silt, and rainwater from entering the device, avoiding corrosion and weathering of the concrete pile cap and rusting and aging of the internal steel bars. Combined with the anti-corrosion coating and warning signs on the surface of the buffer cap 1, it achieves multiple protective effects of anti-collision buffering, fastening and anti-detachment, sealing and anti-corrosion, and warning protection, comprehensively ensuring the structural safety of the concrete pile cap of the port terminal, extending the service life of the pile foundation, and ensuring the overall safe and stable operation of the terminal.

[0036] The concrete pile cap anti-collision buffer device for the port's dock piles consists of a buffer cap 1 and a fixing and fastening assembly. The buffer cap 1 is fitted onto the outside of the concrete pile cap and securely connected to it via the fixing and fastening assembly. This forms a comprehensive pile cap protection system integrating elastic buffering and energy absorption, rigid circumferential fastening, all-dimensional sealing and corrosion protection, and anti-loosening and stable locking. The buffer cap performs the core anti-collision buffering function, dissipating the impact force of external impacts; the bimetallic fixing rings form a rigid circumferential fixation, ensuring the device is firmly installed; the double-layer sealing structure seals gaps in all directions, preventing the intrusion of corrosive media; and the anti-loosening bolt assembly adapts to vibration conditions, achieving long-term stability. This system comprehensively solves the technical pain points of traditional pile cap protection devices, such as poor anti-collision, easy detachment, weak sealing, and susceptibility to corrosion.

[0037] The buffer cap 1 adopts an integrated high-elasticity buffer cap as the core anti-collision structure. Utilizing the high elasticity and energy absorption characteristics of composite rubber, it can effectively dissipate the kinetic energy generated by ship scraping, floating object impact, and wind and wave impact, and avoid the concrete pile cap directly bearing rigid impact. It completely solves the problems of traditional protective structures having no buffer, being prone to cracking, and being damaged by the pile body, and protects the integrity of the concrete structure of the pile cap in all aspects.

[0038] The system employs a nested, encircling fixing structure with U-shaped and rectangular metal fixing rings, along with a double-locking design using set bolts and double anti-loosening nuts. This allows for comprehensive and secure positioning of the buffer cap, effectively preventing displacement, detachment, and loosening of the buffer cap under conditions of high-frequency vibration and repeated impacts at the dock. Compared to traditional binding and single-ring fixing structures, this system offers significantly improved stability and reliability.

[0039] By sealing the gaps in metal connections and bolt gaps with a sealing rubber pad, and combining this with the flexible rubber sealing core at the lower end to wrap and seal the gaps in the pile body, a fully sealed protection system without dead angles is formed. This effectively prevents seawater, salt spray, silt, and rainwater from intruding into the gap between the pile cap and the buffer cap, preventing concrete corrosion, steel reinforcement rust, and structural aging, and significantly extending the service life of the wharf pile foundation. At the same time, the anchoring depth of the set bolts is limited to no more than the thickness of the concrete protective layer, effectively avoiding the problem of bolt drilling damaging the steel reinforcement protective layer and touching the internal steel reinforcement, thus ensuring the original structural strength and durability of the pile foundation.

[0040] Adopting a modular, non-destructive installation design, it does not require damage to the original pile structure, is easy to assemble and disassemble, has low maintenance costs, and can be adapted to concrete pile caps of different specifications, making it highly versatile. At the same time, the warning markings on the surface of the buffer cap can actively avoid the risk of impact, providing dual protection for the pile safety from both passive protection and active warning aspects, effectively reducing the probability of dock pile foundation failure and ensuring the safe and stable operation of the dock.

[0041] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concrete pile cap anti-collision buffer device for port and wharf piles, characterized in that, include: Buffer cap (1) and fastening assembly; The buffer cap (1) is fitted onto the outside of the concrete pile cap and is fastened to the concrete pile cap by the fixing fastening assembly.

2. The anti-collision buffer device for concrete pile caps of port terminal piles according to claim 1, characterized in that, The fixing and fastening assembly includes: U-shaped metal retaining ring (2) and rectangular metal retaining ring (3); The rectangular metal fixing ring (3) is horizontally fitted outside the buffer cap (1), and the U-shaped metal fixing ring (2) is vertically fitted outside the buffer cap (1), with the U-shaped metal fixing ring (2) located outside the rectangular metal fixing ring (3). Set bolt (4) passes through U-shaped metal fixing ring (2), rectangular metal fixing ring (3) and buffer cap (1) in sequence, and is connected to the concrete pile cap to achieve a fast connection.

3. The anti-collision buffer device for concrete pile caps of port wharf piles according to claim 2, characterized in that, It also includes a sealing gasket (5), which is disposed inside the set bolt (4).

4. The anti-collision buffer device for concrete pile caps of port terminal piles according to claim 1, characterized in that, It also includes a flexible rubber sealing core (6); the lower end of the concrete pile cap is connected to a concrete pile, and the flexible rubber sealing core (6) is connected to the connection between the buffer cap (1) and the concrete pile.

5. The anti-collision buffer device for concrete pile caps of port terminal piles according to claim 1, characterized in that, The buffer cap (1) is an integrated ring-shaped cap structure made of high-elasticity and wear-resistant composite rubber material.

6. The anti-collision buffer device for concrete pile caps of port wharf piles according to claim 2, characterized in that, The outer surface of the rectangular metal fixing ring (3) is provided with a nested groove that is compatible with the U-shaped metal fixing ring (2). The nested groove is provided with a bolt through hole that is concentric with the U-shaped metal fixing ring (2) for the set bolt (4) to pass through.

7. The anti-collision buffer device for concrete pile caps of port wharf piles according to claim 4, characterized in that, The flexible rubber sealing core (6) is a ring structure, which is sleeved on the concrete pile, and its upper end face is tightly fitted with the buffer cap (1).

8. The anti-collision buffer device for concrete pile caps of port terminal piles according to claim 1, characterized in that, The outer surface of the buffer cap (1) is coated with an anti-corrosion and wear-resistant coating.

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