Device for pulling out steel pipe pile in water limited space
By using a floating box and a curved traction rope in a limited space on the water, the problem of removing steel pipe piles is solved, and stable and safe removal in small rivers is achieved, and equipment land occupation and operating costs are reduced.
Patent Information
- Application Number
- CN202411313295.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2024-12-13
AI Technical Summary
It is difficult to quickly remove steel pipe piles in limited water spaces. The operating space is limited due to the influence of the upper bridges, and traditional large machinery is difficult to enter and exit, resulting in difficulty in removing.
Design a water-limited space steel pipe pile removal device, including a floating box, a tightening mechanism and a lifting mechanism. A cavity is provided on the floating box to cut off the steel pipe piles. The arc-shaped pressing block and traction rope form a tightening mechanism, and passes the oblique The linkage between the pulling part and the horizontal pushing part converts the traditional upper and lower lifting force into horizontal force, achieving stable clamping and removal of steel pipe piles.
It solves the problem that small rivers are difficult to carry large-scale equipment reaction forces, provides a stable and safe operating platform, reduces the equipment's footprint and operating surface, saves manpower and material resources, and improves safety and efficiency.
Smart Images
Figure CN119121930A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of steel pipe pile extraction, and in particular to a device for extracting steel pipe piles in a limited space above water. Background Art
[0002] With the development of cities, municipal infrastructure is constantly improving, and small transportation buildings such as municipal bridges are increasing. Steel pipe piles are not only mainly used as temporary facilities in the construction of trestles, but also as a support system in the erection of box girder formwork supports.
[0003] After the bridge side project is completed, the steel pipe piles need to be directly removed from the river channel. The existing steel pipe pile removal technologies include crawler crane with hydraulic pile clamp, full casing static pressure pile removal, high-pressure water jet pile removal, etc. However, in most cases, when removing steel pipe piles, due to the influence of the upper bridge, the working space is limited, making it difficult for large machinery to enter and exit, and then the removal of steel pipe piles is more difficult. Summary of the invention
[0004] In order to improve the problem that it is difficult to quickly remove steel pipe piles in a limited space on water, the present application provides a device for removing steel pipe piles in a limited space on water.
[0005] The present application provides a device for removing steel pipe piles in a limited space on water, which adopts the following technical solution: A device for removing steel pipe piles in a limited space on water, comprising: A pontoon floats on the water surface, wherein a cavity is provided in the middle thereof for the steel pipe pile to pass through, and a pile cutting mechanism is provided on the pontoon for cutting off the portion of the steel pipe pile located above the cavity; A clamping mechanism is arranged below the pontoon and is used to surround and clamp the steel pipe pile. The clamping mechanism includes a plurality of arc-shaped pressing blocks and a clamping assembly used to drive the plurality of arc-shaped pressing blocks to clamp against the peripheral wall of the steel pipe pile. The plurality of arc-shaped pressing blocks are evenly distributed along the circumference of the steel pipe pile. The lifting mechanism is arranged on the pontoon and is used for pulling a plurality of groups of arc-shaped pressure blocks to drive the steel pipe piles to move upward synchronously.
[0006] Furthermore, there are two arc pressure blocks in the same group, and the two arc pressure blocks in the same group are symmetrically arranged along the center of the steel pipe pile. The clamping assembly includes multiple ring-shaped traction ropes, the number of traction ropes is the same as the number of groups of arc pressure blocks, and channels for multiple traction ropes to pass through are opened on the arc pressure blocks along their arc trajectory directions. The multiple arc pressure blocks are connected in series in sequence through the traction ropes. Two traction ends are provided on the same traction rope, and the traction end is located between two adjacent arc pressure blocks. The two traction ends on the same traction rope divide the traction rope into two traction sections. The two traction sections are provided with the same number of arc pressure blocks. The output end of the lifting mechanism is connected to the traction end, and the output end of the lifting mechanism pulls the traction end to move in an oblique upward direction.
[0007] Furthermore, a protective sleeve is provided in the channel on the arc-shaped pressing block, and the traction rope is located in the protective sleeve.
[0008] Furthermore, the arc-shaped pressing block is provided with an anti-skid layer for increasing the friction between the arc-shaped pressing block and the peripheral wall of the steel pipe pile.
[0009] Furthermore, the lifting mechanism includes a plurality of horizontal pushing members arranged on the pontoon and an inclined member rotatably connected between the horizontal pushing member and the traction rope. The inclined member is obliquely arranged between the horizontal pushing member and the traction rope. The number of the horizontal pushing members is the same as the number of the traction ends. The output end of the horizontal pushing member points to the side away from the cavity. When the output end of the horizontal pushing member pushes the inclined member to move in a direction away from the cavity, the inclined member pulls the traction rope through the traction end to press the arc-shaped pressure block against the peripheral wall of the steel pipe pile, and drives the steel pipe pile to move upward.
[0010] Furthermore, the inclined brace is configured as an inclined brace rod, one end of which is hinged to the output end of the horizontal pusher and the other end of which is connected to the traction end of the traction rope.
[0011] Furthermore, the inclined member is configured as an inclined cable, and the output end of the horizontal pushing member and the traction end of the traction rope are respectively tied and connected to the two ends of the inclined cable.
[0012] Furthermore, a ring is provided on the sliding sleeve of the traction end of the traction rope, and the inclined member is connected to the traction end of the traction rope through the ring.
[0013] In summary, the present application includes at least one of the following beneficial technical effects: 1. The combination of pontoons, inclined stays and horizontal pushers is adopted to convert the traditional up-and-down lifting force into horizontal force, solve the problem that small rivers are difficult to bear the reaction force generated by large equipment, and break through the influence of the space under the bridge restricting the pulling force; 2. The U-shaped pontoon is used as the basic operating platform for steel pipe pile extraction, which not only has strong stability and safety, but also reserves operating space for cutting steel sheet piles. It can be cut and extracted at the same time according to local conditions, solving the problem of large space occupation and large operating surface of the two sets of cutting and extraction equipment, and reducing dependence on the surrounding environment; 3. The lifting mechanism and the clamping mechanism are linked to each other so that the clamping force is increased by the lifting force, solving the problem that the clamping mechanism needs to be manually adjusted underwater. All operations can be completed on the water surface, saving manpower and material costs and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0016] Figure 2 It is a schematic diagram of the structure of the buoyancy box and the horizontal pushing member in the embodiment of the present application.
[0017] Figure 3 It is a schematic diagram of the structure of the arc-shaped pressing block, the traction rope and the traction end in the embodiment of the present application.
[0018] Figure numerals: 1. buoyancy box; 2. cavity; 3. arc-shaped pressure block; 31. first pressure block; 32. second pressure block; 33. third pressure block; 34. fourth pressure block; 4. protective sleeve; 5. ring; 6. first traction end; 7. second traction end; 8. third traction end; 9. fourth traction end; 10. first traction rope; 11. second traction rope; 12. anti-slip layer; 13. horizontal pushing member; 14. inclined member; 15. steel pipe pile. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] The present application discloses a device for removing steel pipe piles in a limited space above water. Figure 1 , Figure 2 and Figure 3, The steel pipe pile extraction device for limited water space includes a floating box 1, a clamping mechanism arranged below the floating box 1 and used for surrounding and clamping the steel pipe pile 15, and a hoisting mechanism that pulls the steel pipe pile 15 upward and extracts it by acting on the clamping mechanism. The floating box 1 is set as a symmetric structure in a rectangular shape with a hole in the middle, so that the floating box 1 can float stably on the water surface. A cavity 2 for the steel pipe pile 15 to pass through is arranged in the middle of the floating box 1, so that as the steel pipe pile 15 is pulled upward and extracted, the top of the steel pipe pile 15 can extend out of the cavity 2, and the operator can install a pile cutting mechanism, such as a cutting machine, a pile cutter, etc. on the floating box 1 according to the limited water space conditions; the pile cutting mechanism cuts the part of the steel pipe pile 15 above the cavity 2, so that the steel pipe column can be continuously pulled upward and extracted in the limited water space.
[0021] Refer to Figure 1 , Figure 2 And Figure 3 , in the embodiment of the present application, the steel pipe pile 15 is set as a cylindrical shape. The clamping mechanism includes multiple groups of arc-shaped pressing blocks 3 and a pressing component for driving the multiple groups of arc-shaped pressing blocks 3 to press tightly against the peripheral wall of the steel pipe pile 15. The multiple groups of arc-shaped pressing blocks 3 are evenly distributed along the circumferential direction of the steel pipe pile 15. Through the pressing component, the multiple groups of arc-shaped pressing blocks 3 are symmetrically arranged and pressed tightly against the peripheral wall of the steel pipe pile 15, and then the hoisting mechanism is used, so that the steel pipe pile 15 can be smoothly pulled upward and extracted under the friction of the multiple groups of arc-shaped pressing blocks 3.
[0022] For the setting of the arc-shaped pressing block 3, refer to Figure 1 And Figure 3 , the appropriate number of groups of arc-shaped pressing blocks 3 can be set according to the diameter size of the steel pipe pile 15. In the embodiment of the present application, two groups of arc-shaped pressing blocks 3 are set, and each group of arc-shaped pressing blocks 3 has two. The two arc-shaped pressing blocks 3 in the same group are centrosymmetrically arranged along the steel pipe pile 15. The four arc-shaped pressing blocks 3 are evenly distributed along the circumferential direction of the steel pipe pile 15, and are successively the first pressing block 31, the second pressing block 32, the third pressing block 33 and the fourth pressing block 34, the first pressing block 31. The inner side wall of the arc-shaped pressing block 3 is arc-shaped, and an anti-slip layer 12 is also arranged. The anti-slip layer 12 can be a frosted coating or a damping pad. Through the anti-slip layer 12, the friction between the arc-shaped pressing block 3 and the steel pipe pile 15 can be increased, so that under the action of the pressing component, the arc-shaped pressing block 3 is not easy to generate relative sliding with the steel pipe pile 15, ensuring that the steel pipe pile 15 can be smoothly pulled upward and extracted.
[0023] For the setting of the pressing component, refer to Figure 3The tightening assembly includes a plurality of annular traction ropes, the number of which is the same as the number of groups of the arc-shaped pressing blocks 3. There are two traction ropes, namely the first traction rope 10 and the second traction rope 11. The first traction rope 10 and the second traction rope 11 are of equal length and are both made of steel strands, and have strong tensile strength. The four arc-shaped pressing blocks 3 are provided with channels for the first traction rope 10 and the second traction rope 11 to pass through along the arc-shaped trajectory direction. A protective sleeve 4 is fixed in the channel. The protective sleeve 4 is made of rubber material. The first traction rope 10 and the second traction rope 11 are both located in the protective sleeve 4, so that the first pressing block 31, the second pressing block 32, the third pressing block 33 and the fourth pressing block 34 are connected in series by the first traction rope 10 and the second traction rope 11.
[0024] Reference Figure 3 Two traction ends are provided on the same traction rope, wherein the two traction ends on the first traction rope 10 are respectively the first traction end 6 and the second traction end 7, the first traction end 6 is located between the first pressure block 31 and the second pressure block 32, and the second traction end 7 is located between the third pressure block 33 and the fourth pressure block 34; by pulling the first traction end 6 and the second traction end 7 in opposite directions, the first pressure block 31 and the second pressure block 32 are synchronously moved toward the direction of the steel pipe pile 15 and tightened, and the third pressure block 33 and the fourth pressure block 34 are synchronously moved toward the direction of the steel pipe pile 15 and tightened. The two traction ends on the second traction rope 11 are respectively the third traction end 8 and the fourth traction end 9, the third traction end 8 is located between the second pressure block 32 and the third pressure block 33, and the fourth traction end 9 is located between the fourth pressure block 34 and the first pressure block 31; by pulling the third traction end 8 and the fourth traction end 9 in opposite directions, the second pressure block 32 and the third pressure block 33 are synchronously moved and tightened toward the steel pipe pile 15, and the fourth pressure block 34 and the first pressure block 31 are synchronously moved and tightened toward the steel pipe pile 15.
[0025] In order to make the first pressing block 31, the second pressing block 32, the third pressing block 33 and the fourth pressing block 34 press against the steel pipe pile 15 at the same time and with the same force, so that the steel pipe pile 15 can be evenly pulled out vertically upward, refer to Figure 1 , Figure 2 and Figure 3The lifting mechanism includes a plurality of horizontal pushers 13 arranged on the pontoon 1 and an inclined brace 14 rotatably connected between the horizontal pushers 13 and the traction rope. The number of the horizontal pushers 13 is the same as the number of the traction ends. There are four horizontal pushers 13, and the four horizontal pushers 13 are evenly distributed along the circumference of the steel pipe pile 15. The horizontal pushers 13 can be electric push rods, hydraulic cylinders, air cylinders, etc. In the embodiment of the present application, the horizontal pushers 13 are configured as hydraulic cylinders, and the telescopic ends of the four hydraulic cylinders are telescopically configured in a direction away from the central axis of the steel pipe pile 15. There are also four inclined braces 14, and the four inclined braces 14 correspond to the four horizontal pushers 13 one by one. The inclined braces 14 are obliquely arranged between the horizontal pushers 13 and the traction rope. The sliding sleeve on the traction end of the traction rope is provided with a ring 5, and the inclined brace 14 is connected to the traction end of the traction rope through the ring 5. In one feasible embodiment, the inclined brace 14 is configured as an inclined rod, one end of which is hinged to the output end of the horizontal pusher 13, and the other end is connected to the traction end of the traction rope; in another feasible embodiment, the inclined brace 14 is configured as an inclined cable, one end of which is tied and fixed to the output end of the horizontal pusher 13, and the other end is tied and connected to the traction end of the traction rope. When the output end of the horizontal pusher 13 pushes the inclined brace 14 to move away from the cavity 2, the inclined brace 14 pulls the traction rope through the traction end to press the arc pressure block 3 against the surrounding wall of the steel pipe pile 15, so that the four arc pressure blocks 3 are simultaneously held on the steel pipe pile 15. As the horizontal pusher 13 continues to work, the inclined brace 14 pulls the arc pressure block 3 upward through the traction rope, so that the steel pipe pile 15 moves upward synchronously together under the friction of the arc pressure block 3, so as to achieve the removal of the steel pipe pile 15. After completing the truncation and removal of the steel pipe pile 15 above the cavity 2, it is only necessary to drive the four horizontal pushers 13 to shrink synchronously. At this time, the first pressure block 31, the second pressure block 32, the third pressure block 33 and the fourth pressure block 34 move downward under the action of gravity, so that the four arc-shaped pressure blocks 3 move synchronously and are sleeved on the appropriate position of the steel pipe pile 15. Finally, the four horizontal pushers 13 are driven to extend synchronously again to realize the continuous removal of the steel pipe pile 15.
[0026] The implementation principle of the above-water limited space steel pipe pile extraction device of the embodiment of the present application is as follows: firstly, the first pressing block 31, the second pressing block 32, the third pressing block 33 and the fourth pressing block 34 are arranged around the steel pipe pile 15 so that the steel pipe pile 15 is just below the cavity 2 on the pontoon 1; then, the first traction end 6, the second traction end 7, the third traction end 8 and the fourth traction end 9 are respectively connected to the output ends of the four horizontal pushers 13 through the four inclined braces 14; then, the four horizontal pushers 13 are synchronously started, and the output ends of the horizontal pushers 13 push the inclined braces 14 toward a direction away from the cavity 2 When moving upward, the inclined brace 14 pulls the traction rope through the traction end to press the arc pressure block 3 against the peripheral wall of the steel pipe pile 15, so that the four arc pressure blocks 3 are simultaneously tightly held on the steel pipe pile 15. As the horizontal pusher 13 continues to work, the inclined brace 14 pulls the arc pressure block 3 upward through the traction rope, so that the steel pipe pile 15 moves upward synchronously under the friction of the arc pressure block 3, thereby realizing the removal of the steel pipe pile 15; finally, the part of the steel pipe pile 15 located above the cavity 2 is cut off by the pile cutting mechanism, so that the steel pipe column can be continuously pulled upward and removed in the limited space above the water. After completing the truncation and removal of the steel pipe pile 15 above the cavity 2, it is only necessary to drive the four horizontal pushers 13 to shrink synchronously. At this time, the first pressure block 31, the second pressure block 32, the third pressure block 33 and the fourth pressure block 34 move downward under the action of gravity, so that the four arc-shaped pressure blocks 3 move synchronously and are sleeved on the appropriate position of the steel pipe pile 15, and the four horizontal pushers 13 are driven to extend synchronously again to realize the continuous removal of the steel pipe pile 15.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A device for removing steel pipe piles in a limited space on water, characterized in that: include A pontoon floats on the water surface, wherein a cavity is provided in the middle thereof for the steel pipe pile to pass through, and a pile cutting mechanism is provided on the pontoon for cutting off the portion of the steel pipe pile located above the cavity; A clamping mechanism is arranged below the pontoon and is used to surround and clamp the steel pipe pile. The clamping mechanism includes a plurality of arc-shaped pressing blocks and a clamping assembly used to drive the plurality of arc-shaped pressing blocks to clamp against the peripheral wall of the steel pipe pile. The plurality of arc-shaped pressing blocks are evenly distributed along the circumference of the steel pipe pile. The lifting mechanism is arranged on the pontoon and is used for pulling a plurality of groups of arc-shaped pressure blocks to drive the steel pipe piles to move upward synchronously.
2. The device for removing steel pipe piles in a limited space above water according to claim 1, characterized in that: There are two arc pressure blocks in the same group, and the two arc pressure blocks in the same group are symmetrically arranged along the center of the steel pipe pile. The clamping assembly includes multiple ring-shaped traction ropes, the number of traction ropes is the same as the number of groups of arc pressure blocks, and channels for multiple traction ropes to pass through are opened on the arc pressure blocks along their arc trajectory directions. The multiple arc pressure blocks are connected in series in sequence through the traction ropes. Two traction ends are provided on the same traction rope, and the traction end is located between two adjacent arc pressure blocks. The two traction ends on the same traction rope divide the traction rope into two traction sections. The number of arc pressure blocks mounted on the two traction sections is the same. The output end of the lifting mechanism is connected to the traction end, and the output end of the lifting mechanism pulls the traction end to move in an oblique upward direction.
3. The device for removing steel pipe piles in a limited space above water according to claim 2, characterized in that: A protective sleeve is arranged on the arc-shaped pressing block in the channel, and the traction rope is located in the protective sleeve.
4. The device for removing steel pipe piles in a limited space above water according to claim 1, characterized in that: The arc-shaped pressing block is provided with an anti-skid layer for increasing the friction between the arc-shaped pressing block and the peripheral wall of the steel pipe pile.
5. The device for removing steel pipe piles in a limited space above water according to claim 2, characterized in that: The lifting mechanism includes a plurality of horizontal pushing members arranged on the floating box and an inclined member rotatably connected between the horizontal pushing members and the traction rope. The inclined member is obliquely arranged between the horizontal pushing members and the traction rope. The number of the horizontal pushing members is the same as the number of the traction ends. The output end of the horizontal pushing member points to the side away from the cavity. When the output end of the horizontal pushing member pushes the inclined member to move in a direction away from the cavity, the inclined member pulls the traction rope through the traction end to press the arc-shaped pressure block against the peripheral wall of the steel pipe pile, and drives the steel pipe pile to move upward.
6. The device for removing steel pipe piles in a limited space above water according to claim 5, characterized in that: The inclined pull member is configured as an inclined pull rod, one end of which is hinged to the output end of the horizontal push member, and the other end of which is connected to the traction end of the traction rope.
7. The device for removing steel pipe piles in a limited space above water according to claim 5, characterized in that: The inclined stay is configured as an inclined cable, and the output end of the horizontal pusher and the traction end of the traction rope are respectively tied and connected with two ends of the inclined cable.
8. The device for removing steel pipe piles in a limited space above water according to any one of claims 6 or 7, characterized in that: A sleeve is provided on the sliding sleeve of the traction end of the traction rope, and the inclined pull piece is connected to the traction end of the traction rope through the sleeve.