Prestressed concrete h-shaped pile sinking structure and method thereof

Abstract

The application provides a prestressed concrete H-shaped pile sinking structure and a sinking method thereof, which comprises a driving mechanism and a pile sinking mechanism; the pile sinking mechanism comprises corrugated pipes, a nozzle and a suction pipe; four corrugated pipes are arranged on the side wall of the prestressed pile, and two flushing grooves are symmetrically arranged on the bottom surface of the prestressed pile; a reinforcing mechanism is arranged, the reinforcing mechanism comprises a second reinforcing rod and a hook; a groove is arranged on the top end side wall of the second reinforcing rod, the side wall of the first pressing ring is fixedly connected with the hook, and the hook is clamped in the groove; a fixing mechanism for increasing the firmness between the hook and the second reinforcing rod is arranged on the side wall of the first pressing ring, the fixing mechanism is connected with a pressure increasing mechanism through the reinforcing mechanism, the pressure increasing mechanism is arranged on the side wall of the corrugated pipe, and the prestressed concrete H-shaped pile sinking structure and the sinking method thereof have the advantages that the pile is automatically sunk by water flushing and the self weight of the pile body, and the pile body is prevented from being damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of H-type pile sinking, in particular to a prestressed concrete H-type pile sinking structure and a pile sinking method thereof. Background Art

[0002] Riverbanks are the land-based structures along rivers, typically made of materials such as rock, concrete, or soil. They provide support and protection for rivers, preventing erosion and helping to maintain the river's natural ecosystem and biodiversity. The design and construction of riverbanks requires consideration of multiple factors, including topography, hydrology, climate, vegetation, human activities, and environmental protection.

[0003] Prestressed concrete H-type piles have the advantages of high bending and shear strength, and by applying prestress, the pile body concrete has higher strength and bearing capacity; when supporting river revetments, pile drivers are often used to drive prestressed concrete H-type piles into the soil layer to reinforce the river revetments; since the soil layer of the river revetments is mostly sandy soil, the soil layer is soft and has poor bearing capacity, and the pile driver is large in size, height and weight, it is easy to lose its center of gravity and roll over during the pile driving process in the sandy soil layer, and the prestressed concrete H-type piles are constantly squeezed downward during the pile driving process, which may cause damage to the pile surface and lead to pile breakage.

[0004] Therefore, it is necessary to provide a new prestressed concrete H-type pile sinking structure and a pile sinking method thereof to solve the above technical problems. Summary of the Invention

[0005] The technical problem solved by the present invention is to provide a prestressed concrete H-type pile sinking structure and a pile sinking method which can automatically sink piles by using water flushing and pile body deadweight and avoid pile body damage.

[0006] In order to solve the above technical problems, the prestressed concrete H-type pile driving structure provided by the present invention includes: a driving mechanism for conveying high-pressure water and recovering mud, the driving mechanism is located on one side of the prestressed pile, and the side wall of the prestressed pile is installed with a pile driving mechanism for flushing the soil layer and conveying mud; the pile driving mechanism includes a corrugated pipe, a nozzle and a suction pipe, four corrugated pipes are installed on the side wall of the prestressed pile, and two flushing grooves are symmetrically provided on the bottom surface of the prestressed pile; the top of the nozzle is fixedly connected to the first cylinder, and the side wall of the first cylinder is installed with a first pressure ring with an inclined top surface; the top of the suction pipe with a funnel-shaped bottom end is fixedly connected to the second cylinder, and the side wall of the second cylinder is fixedly connected to the second pressure ring with an inclined top surface; the bottom end of the prestressed pile is installed with a fixed plate with an arc-shaped side wall, the surface of the fixed plate is provided with a plurality of slide grooves, and the inner part of the slide groove is slidably connected to the limit rod; the top of the first pressure ring and the second pressure ring are both installed with a plurality of limit rods, and the tops of the first pressure ring and the second pressure ring are The end of the rod is in contact with the surface of the fixed plate; on the same side of the prestressed pile, a reinforcement mechanism for increasing the stability of the nozzle and the straw is installed between the first pressure ring and the second pressure ring, and the reinforcement mechanism includes a second reinforcement rod and a hook, the side wall of the second pressure ring is rotatably connected to the second reinforcement rod, one end of the second reinforcement rod is fixedly connected to the internal hollow fixing plug, and the fixing plug and the second reinforcement rod are slidably connected to the inside of the first reinforcement rod; the side wall of the second reinforcement rod is fitted with a first spring, and the two ends of the first spring respectively contact the fixing plug and the first reinforcement rod; the top side wall of the first reinforcement rod is provided with a groove, and the side wall of the first pressure ring is fixedly connected to the hook, and the hook engages with the inside of the groove; the side wall of the first pressure ring is installed with a fixing mechanism for increasing the firmness between the hook and the first reinforcement rod, and the fixing mechanism is connected to the boosting mechanism through the reinforcement mechanism, and the boosting mechanism for increasing the internal suction of the straw is installed on the side wall of the corrugated pipe.

[0007] Preferably, the driving mechanism includes a sedimentation tank and a clear water tank, a clear water tank is installed on one side of the sedimentation tank, a mud pump is installed inside the sedimentation tank, and the mud pump is connected to the bellows connected to the suction pipe; a high-pressure pump is connected to the inside of the clear water tank, and the high-pressure pump is connected to the bellows connected to the nozzle.

[0008] Preferably, the prestressed piles are fixed to the soil surface via guide rails, and slings are installed at the tops of the prestressed piles.

[0009] Preferably, a plurality of reserved steel bars are symmetrically arranged on the side wall of the prestressed pile with an "H"-shaped cross-section, the top reserved steel bar is fixed to the corrugated pipe by steel wire bundling, the side wall of the bottom reserved steel bar is welded with the fixing plate, and the other reserved steel bars are engaged with the side walls of the corrugated pipe.

[0010] Preferably, the side wall of the flushing trough is funnel-shaped; along the direction of water flow, the height and width of the flushing trough gradually decrease.

[0011] Preferably, the fixing mechanism includes a mounting tube and a fixing tube, the first pressure ring and the interior of the first cylinder are inclinedly installed to install the fixing tube, the interior of the fixing tube is slidingly connected to the support rod and the fixed head, and the interior of the fixed head is fixedly connected to the support rod; a limiting ring is installed on the side wall of the fixing tube, and a second spring is fitted on the side wall of the support rod, and the two ends of the second spring respectively contact the limiting ring and the fixed head; the side wall of the support rod is fixedly connected to the piston, and the top end of the first reinforcement rod is fixedly connected to the mounting tube, the top end of the mounting tube is magnetic, the interior of the mounting tube is slidingly connected to and adsorbs the support rod, and the piston contacts the side wall of the mounting tube; the side wall of the support rod is fixedly connected to the sliding rod, and the top end of the hook is provided with a slot, and the sliding rod is slidably connected to the inside of the slot.

[0012] Preferably, the first cylinder is provided with a communicating groove, the top side wall of the communicating groove is in an arc-shaped structure, both ends of the fixing head are in a hemispherical shape, and the top end of the fixing head is aligned with the turning point of the communicating groove.

[0013] Preferably, the boosting mechanism includes a boosting cylinder and a water inlet pipe, the side wall of the bellows connected to the suction pipe is fixedly connected to the water inlet pipe, and the side walls of the boosting cylinder are respectively installed with a water outlet pipe and the water inlet pipe with a funnel-shaped interior; the interior of the boosting cylinder is rotatably connected to the turbine; the side wall of the boosting cylinder is fixedly connected to the connecting cylinder, and the interior of the connecting cylinder is rotatably connected to the rotating shaft and the push plate, and the rotating shaft is fixedly connected to the turbine and the push plate with an arc-shaped side wall; the side wall of the connecting cylinder is installed with a connecting hose and a connecting pipe, the top end of the connecting pipe is connected to the water outlet pipe, and the water outlet pipe is obliquely connected to the side wall of the bellows.

[0014] Preferably, the bottom end of the connecting hose is threadedly connected to the second reinforcing rod, and the connecting hose is communicated with the interior of the mounting tube through the second reinforcing rod, the fixing plug and the first reinforcing rod.

[0015] Preferably, a method for sinking prestressed concrete H-type piles specifically comprises the following steps:

[0016] and a tube which is fixed to the side of the prestressed pile; and

[0017] Step 2: Rotate the second reinforcing rod and at the same time stretch the first reinforcing rod so that the second reinforcing rod slides out from the inside of the first reinforcing rod to compress the first spring, rotate the first reinforcing rod so that the hook engages the groove on the side wall of the first reinforcing rod, fix the first reinforcing rod, and align the first reinforcing rod with the fixed pipe; use a crane to lift the prestressed pile through the sling so that the prestressed pile passes through the guide rail and contacts the surface of the soil layer; turn on the driving mechanism, and the driving mechanism operates to cause high-pressure water to spray downward rapidly through the nozzle, and in the process of spraying water, a reverse thrust is generated on the nozzle, pushing the nozzle toward the surface of the fixed disk, causing the first pressure ring to move toward the surface of the fixed disk, so that the top surface of the first pressure ring is in close contact with the surface of the fixed disk, and the limit rod is located inside the slide; fix the angle of the nozzle so that the nozzle is tilted downward to flush the soil; when water enters the interior of the connecting groove inside the first cylinder, the water flows through the connecting groove with an arc-shaped side wall. The first and second springs are pressed against the top of the support tube to release the second springs, and the second and second springs are pressed against the top of the support tube to release the second springs.

[0018] Step 3: When water is sprayed downward from the nozzle, high-pressure water crushes the soil around the prestressed piles, and the soil is squeezed downward under the weight of the prestressed piles themselves, and the soil under the prestressed piles is washed away by the water, so that the prestressed piles gradually enter the soil layer; in the process of the nozzle spraying water, the sprayed water moves toward one end of the flushing trough, and the suction pipe is provided at the other end of the flushing trough. Suction is generated inside the suction pipe to draw away the water and mud inside the flushing trough, and the side wall of the flushing trough is in a funnel-shaped structure; along the direction of water flow, the height and width of the flushing trough gradually decrease, and when the water flows along As the flushing trough moves, the cross-sectional area of ​​the water moving inside the flushing trough gradually decreases, thereby increasing the speed of the water inside the flushing trough, making it easier to cut the soil and drive the sediment, and the suction pipe is located on one side of the flushing trough, quickly sucking away the broken soil layer and sediment to avoid sediment accumulation; high-pressure water flows between the nozzle and the suction pipe, continuously cutting the soil under the prestressed pile like a wire saw, and the nozzles at both ends of the prestressed pile are staggered, and the two water flows move in opposite directions inside the flushing trough, further accelerating the efficiency of the water flow in breaking the soil and accelerating the efficiency of pile sinking;

[0019] Step 4: When the top of the prestressed pile is only one meter away from the soil surface, the driving mechanism is turned off. At this time, the nozzle no longer sprays water, and the second spring pushes the support rod and the slide rod to reset. The slide rod is disengaged from the hook, and the steel wire on the surface of the corrugated pipe is removed. The corrugated pipe is pulled to separate it from the reserved steel bars, and the corrugated pipe is shaken. Under the action of gravity and the corrugated pipe, the first pressure ring and the second pressure ring tilt downward and separate from the fixed plate, and the side wall of the hook is arc-shaped, which facilitates the separation of the hook from the first reinforcement rod. The first spring drives the first reinforcement rod to contract, thereby facilitating the removal of the corrugated pipe, the nozzle and the suction pipe from the side wall of the prestressed pile; finally, use excavator equipment to drive the prestressed pile into the soil.

[0020] Compared with related technologies, the prestressed concrete H-type pile sinking structure and pile sinking method provided by the present invention have the following beneficial effects:

[0021] The present invention provides a prestressed concrete H-type pile sinking structure and a pile sinking method thereof. During the pile sinking process, the reinforcing mechanism and the fixing mechanism increase the stability and firmness between the first cylinder and the second cylinder, thereby preventing the nozzle and the suction pipe from changing their positions during operation; water is sprayed obliquely downward from the nozzle to spray high-pressure water to crush the soil around the prestressed pile, and the soil is squeezed downward under the weight of the prestressed pile itself, so that the soil below the prestressed pile is washed away by the water, and the prestressed pile gradually enters the soil layer; during the process of water spraying from the nozzle, the sprayed water moves toward one end of the flushing trough, and the suction pipe is provided at the other end of the flushing trough. Suction is generated inside the suction pipe to draw out water and mud inside the flushing trough, and the side wall of the flushing trough is funnel-shaped. shaped structure; along the direction of water flow, the height and width of the flushing trough gradually decrease. When water moves along the flushing trough, the cross-sectional area of ​​water movement inside the flushing trough gradually decreases, thereby increasing the speed of water inside the flushing trough, which is convenient for cutting soil and driving sediment, and the suction pipe is located on one side of the flushing trough, which quickly sucks away the broken soil layer and sediment to avoid sediment accumulation; high-pressure water flows between the nozzle and the suction pipe, continuously cutting the soil under the prestressed pile like a wire saw, and the nozzles at both ends of the prestressed pile are staggered, and the two streams of water move in opposite directions inside the flushing trough, further accelerating the efficiency of water flow in breaking the soil and accelerating the pile sinking efficiency. No large-scale pile sinking equipment is required during the pile sinking process, thereby accelerating construction safety and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a prestressed concrete H-type pile sinking structure and a pile sinking method thereof provided by the present invention;

[0023] Figure 2 for Figure 1 An enlarged schematic diagram of the structure at point A is shown;

[0024] Figure 3 for Figure 1 A side view of the prestressed pile structure is shown;

[0025] Figure 4 for Figure 3 An enlarged schematic diagram of the structure at point B is shown;

[0026] Figure 5 for Figure 4 An enlarged schematic diagram of the structure at D is shown;

[0027] Figure 6 for Figure 3 An enlarged schematic diagram of the structure at position C is shown;

[0028] Figure 7 for Figure 6 The schematic diagram of the internal structure of the connecting tube shown;

[0029] Figure 8 for Figure 1 The top view of the internal structure of the prestressed pile is shown;

[0030] Figure 9 for Figure 1 An enlarged schematic diagram of the structure at E is shown;

[0031] Figure 10 for Figure 2 The exploded schematic diagram of the first pressure ring and the fixed disk structure shown;

[0032] Figure 11 for Figure 10 The schematic diagram of the internal structure of the first cylinder is shown;

[0033] Figure 12 for Figure 1 Bottom view of the prestressed pile structure shown;

[0034] Figure 13 for Figure 3 The top view of the reserved steel bar structure is shown.

[0035] Numbers in the figure: 1. Prestressed pile, 11. Guide rail, 12. Lifting rope, 13. Reserved steel bar, 2. Driving mechanism, 21. High-pressure pump, 22. Mud pump, 23. Sedimentation tank, 24. Clear water tank, 3. Pile sinking mechanism, 31. Bellows, 32. Nozzle, 33. Suction pipe, 34. Fixed plate, 35. First pressure ring, 36. First cylinder, 37. Second pressure ring, 38. Second cylinder, 39. Flushing trough, 310. Limit rod, 311. Slide, 4. Boosting mechanism, 41. Boosting cylinder, 42. Inlet Water pipe, 43. Turbine, 44. Connecting tube, 45. Connecting hose, 46. Rotating shaft, 47. Push plate, 48. Connecting pipe, 49. Water outlet pipe, 5. Reinforcement mechanism, 51. First reinforcing rod, 52. Fixing plug, 53. First spring, 54. Second reinforcing rod, 55. Hook, 6. Fixing mechanism, 61. Mounting tube, 62. Slot, 63. Slide rod, 64. Piston, 65. Support rod, 66. Fixed pipe, 67. Limiting ring, 68. Second spring, 69. Fixing head, 610. Connecting groove. DETAILED DESCRIPTION

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

[0037] See also Figures 1 to 13The prestressed concrete H-type pile sinking structure includes: a driving mechanism 2 for delivering high-pressure water and recovering mud, which is located on one side of the prestressed pile 1. The driving mechanism 2 includes a sedimentation tank 23 and a clear water tank 24. The clear water tank 24 is installed on one side of the sedimentation tank 23. A mud pump 22 is installed inside the sedimentation tank 23. The mud pump 22 is connected to the bellows 31 connected to the suction pipe 33; the high-pressure pump 21 is connected to the inside of the clear water tank 24, and the high-pressure pump 21 is connected to the nozzle 32. The bellows 31 is connected; during the pile sinking process, the high-pressure pump 21 increases the speed and pressure of the water inside the clean water tank 24 and then transports it into the bellows 31 and the nozzle 32; and the mud pump 22 operates to generate suction inside the bellows 31 and the suction pipe 33, extracting the mud generated during the pile sinking of the prestressed pile 1, and the mud enters the sedimentation tank 23. After the water passes through the sedimentation tank 23 and the mud is removed by sedimentation, it enters the clean water tank 24, and the water is recycled.

[0038] On the same side of the prestressed pile 1, a reinforcement mechanism 5 for increasing the stability of the nozzle 32 and the suction pipe 33 is installed between the first pressure ring 35 and the second pressure ring 37. The reinforcement mechanism 5 includes a second reinforcement rod 54 and a hook 55. The side wall of the second pressure ring 37 is rotatably connected to the second reinforcement rod 54. One end of the second reinforcement rod 54 is fixedly connected to the internal hollow fixing plug 52. The fixing plug 52 and the second reinforcement rod 54 are slidably connected to the inside of the first reinforcement rod 51. The side wall of the second reinforcement rod 54 is covered with a first spring 53. The two ends of the first spring 53 respectively abut against the fixing plug 52 and the first reinforcement rod 51. The top side wall of the first reinforcing rod 51 is provided with a groove 56, and the side wall of the first pressure ring 35 is fixedly connected to the hook 55, and the hook 55 engages with the inside of the groove 56; when the nozzle 32 and the suction pipe 33 are installed and fixed with bolts, the second reinforcing rod 54 is rotated, and the first reinforcing rod 51 is stretched at the same time, so that the second reinforcing rod 54 slides out from the inside of the first reinforcing rod 51 to compress the first spring 53, and the first reinforcing rod 51 is rotated so that the hook 55 engages with the groove 56 on the side wall of the first reinforcing rod 51, and the first reinforcing rod 51 is fixed, thereby increasing the stability and firmness of the nozzle 32 and the suction pipe 33.

[0039] The side wall of the prestressed pile 1 is installed with a pile sinking mechanism 3 for flushing the soil layer and conveying mud; the pile sinking mechanism 3 includes a bellows 31, a nozzle 32 and a suction pipe 33, four bellows 31 are installed on the side wall of the prestressed pile 1, and two flushing grooves 39 are symmetrically provided on the bottom surface of the prestressed pile 1; the top of the nozzle 32 is fixedly connected to the first cylinder 36, and the side wall of the first cylinder 36 is installed with a first pressure ring 35 with an inclined top surface; the top of the suction pipe 33 with a funnel shape at the bottom end is fixedly connected to the second cylinder 38, and the side wall of the second cylinder 38 is fixedly connected to the second pressure ring 37 with an inclined top surface; the bottom end of the prestressed pile 1 is installed with a fixed plate 34 with an arc-shaped side wall, and the surface of the fixed plate 34 is provided with a plurality of slide grooves 311, and the inner sliding connection of the slide groove 311 is a limit rod 310; the first pressure ring 35 The top of each of the first and second pressure rings 35 and 37 is provided with a plurality of limiting rods 310, and the top of each of the first and second pressure rings 35 and 37 contacts the surface of the fixed disk 34; when the nozzle 32 and the suction pipe 33 are installed, the limiting rods 310 above the nozzle 32 and the suction pipe 33 are respectively entered into the interior of the fixed disk 34, and the nozzle 32 and the suction pipe 33 are aligned with the flushing groove 39. The side wall of the limiting rod 310 is provided with a through hole, which is convenient for the bolt to pass through the through hole to fix the limiting rod 310 inside the slide groove 311. The surfaces of the first and second pressure rings 35 and 37 are tilted, so that when the top surfaces of the first and second pressure rings 35 and 37 are in contact with the surface of the fixed disk 34, the nozzle 32 and the suction pipe 33 are tilted downward and aligned with the flushing groove 39. When water is sprayed downward from the nozzle 32, high-pressure water is crushed to crush the soil around the prestressed pile 1, and the soil is squeezed downward under the weight of the prestressed pile 1. The soil under the prestressed pile 1 is washed away by the water, so that the prestressed pile 1 gradually enters the soil layer; in the process of water spraying from the nozzle 32, the sprayed water moves toward one end of the flushing trough 39, and the suction pipe 33 is provided at the other end of the flushing trough 39. Suction is generated inside the suction pipe 33 to draw away the water and mud inside the flushing trough 39. The side wall of the flushing trough 39 is in a funnel-shaped structure; along the direction of water flow, the height and width of the flushing trough 39 gradually decrease. When water flows along When the flushing trough 39 moves, the cross-sectional area of ​​the water moving inside the flushing trough 39 gradually decreases, thereby increasing the speed of the water inside the flushing trough 39, which is convenient for cutting the soil and driving the sediment, and the suction pipe 33 is located on one side of the flushing trough 39, which quickly sucks away the broken soil layer and sediment to avoid sediment accumulation; high-pressure water flows between the nozzle 32 and the suction pipe 33, continuously cutting the soil under the prestressed pile 1 like a wire saw, and the nozzles 32 at both ends of the prestressed pile 1 are staggered, and the two water flows move in opposite directions inside the flushing trough 39, further accelerating the efficiency of the water flow in breaking the soil and accelerating the pile sinking efficiency.

[0040] The side wall of the first pressure ring 35 is installed with a fixing mechanism 6 for increasing the firmness between the hook 55 and the first reinforcing rod 51 . The prestressed pile 1 is fixed to the soil surface through a guide rail 11 , and a sling 12 is installed at the top of the prestressed pile 1 .

[0041] A plurality of reserved steel bars 13 are symmetrically arranged on the side wall of the prestressed pile 1 with an "H"-shaped cross-section. The topmost reserved steel bar 13 is fixed to the corrugated tube 31 by steel wire binding, and the side wall of the bottommost reserved steel bar 13 is welded with the fixing plate 34. The other reserved steel bars 13 are engaged with the side walls of the corrugated tube 31. In order to facilitate the use of the reserved steel bars 13, the corrugated tube 31 is fixed to the side wall of the prestressed pile 1.

[0042] The fixing mechanism 6 includes a mounting tube 61 and a fixing tube 66. The fixing tube 66 is installed obliquely inside the first pressure ring 35 and the first cylinder 36. The interior of the fixing tube 66 is slidably connected to the support rod 65 and the fixing head 69, and the interior of the fixing head 69 is fixedly connected to the support rod 65; a limiting ring 67 is installed on the side wall of the fixing tube 66, and a second spring 68 is fitted on the side wall of the support rod 65. The two ends of the second spring 68 respectively contact the limiting ring 67 and the fixing head 69; the side wall of the support rod 65 is fixedly connected to the piston 64, and the top end of the first reinforcement rod 51 is fixedly connected to the mounting tube 61. The top end of the mounting tube 61 is magnetic, and the interior of the mounting tube 61 is slidably connected and adsorbs the support rod 65, and the piston 64 contacts the side wall of the mounting tube 61; the side wall of the support rod 65 is fixedly connected to the sliding rod 63, and the top end of the hook 55 is provided with a card slot 62, and the sliding rod 63 is slidably connected to the inside of the card slot 62. The first cylinder 36 is provided with a communicating groove 610 , the top sidewall of which is in an arc-shaped structure. Both ends of the fixing head 69 are in a hemispherical shape, and the top of the fixing head 69 is aligned with the turning point of the communicating groove 610 . When the water enters the communicating groove 610 inside the first cylinder 36, the water moves downward inside the communicating groove 610 with an arc-shaped side wall, squeezing the fixing head 69 to enter the interior of the fixing tube 66. The fixing head 69 and the support rod 65 move downward inside the fixing tube 66 to compress the second spring 68. The movement of the support rod 65 drives the sliding rod 63 to move into the slot 62 at the top end of the hook 55, preventing the hook 55 from disengaging from the first reinforcing rod 51; and the support rod 65 enters the interior of the mounting tube 61, and at the same time, the piston 64 contacts the top end of the mounting tube 61, closing the top end of the mounting tube 61, and the top end of the mounting tube 61 is magnetic, and the interior of the mounting tube 61 is slidably connected and adsorbs the support rod 65. When the support rod 65 enters the interior of the mounting tube 61, the mounting tube 61 adsorbs the side wall of the support rod 65, increasing the stability of the support rod 65 inside the mounting tube 61.

[0043] The fixing mechanism 6 is connected to the boosting mechanism 4 through the reinforcing mechanism 5. The boosting mechanism 4 for increasing the suction force inside the suction pipe 33 is installed on the side wall of the bellows 31. The boosting mechanism 4 includes a boosting cylinder 41 and a water inlet pipe 42. The side wall of the bellows 31 connected to the suction pipe 33 is fixedly connected to the water inlet pipe 42. The side wall of the boosting cylinder 41 is respectively installed with a water outlet pipe 49 and the water inlet pipe 42 with a funnel shape inside. The inside of the boosting cylinder 41 is rotatably connected to the turbine 43. The side wall of the boosting cylinder 41 is fixedly connected to the turbine 43. The connecting tube 44 has an internal rotation connection shaft 46 and a push plate 47, and the rotating shaft 46 is fixedly connected to the turbine 43 and the push plate 47 with an arc-shaped side wall; the side wall of the connecting tube 44 is installed with a connecting hose 45 and a connecting pipe 48, the top of the connecting pipe 48 is connected to the water outlet pipe 49, and the water outlet pipe 49 is obliquely connected to the side wall of the bellows 31; the bottom end of the connecting hose 45 is threadedly connected to the second reinforcing rod 54, and the connecting hose 45 is connected to the second reinforcing rod 54 and the fixing plug 5 2 and the first reinforcing rod 51 are connected to the interior of the mounting tube 61. When water moves inside the first cylinder 36, part of the water enters the interior of the connecting cylinder 44 through the support rod 65, the mounting tube 61, the first reinforcing rod 51, the fixing plug 52, the second reinforcing rod 54, and the connecting hose 45. The high-speed water flow pushes the push plate 47, the rotating shaft 46, and the turbine 43 to rotate rapidly. When the turbine 43 rotates, suction is generated inside the water inlet pipe 42, thereby increasing the suction force inside the suction pipe 33. The suction force of the suction pipe 33 is increased to speed up the efficiency of cleaning the mud. At the same time, the suction force at the inlet of the suction pipe 33 is increased, which facilitates the water and mud sprayed from the inside of the flushing trough 39 to enter the inside of the suction pipe 33, increases the speed of the water flow inside the flushing trough 39, and speeds up the efficiency of cutting the soil. The mud entering the inside of the booster cylinder 41 enters the inside of the bellows 31 through the outlet pipe 49, and the water inside the connecting cylinder 44 enters the outlet pipe 49 through the connecting pipe 48, so that high-pressure water can continuously enter to push the push plate 47 to rotate.

[0044] A method for sinking prestressed concrete H-type piles, comprising the following steps:

[0045] Step 1: When the prestressed pile 1 is driven into the soil layer, the corrugated tube 31 is placed on the side wall of the reserved steel bar 13, and the side wall of the bottom reserved steel bar 13 is welded to the fixing plate 34 according to the designed position; the top reserved steel bar 13 and the corrugated tube 31 are fixed by steel wire, and the other reserved steel bars 13 are bent so that the reserved steel bars 13 are engaged and squeezed with the corrugated tube 31, and the corrugated tube 31 is fixed to the side wall of the prestressed pile 1; the nozzle 32 and the suction pipe 33 are moved so that the nozzle 32 and the The limiting rods 310 above the suction pipes 33 respectively enter the interior of the fixed disk 34, and the nozzle 32 and the suction pipe 33 are aligned with the flushing groove 39. The side walls of the limiting rods 310 are provided with through holes, which facilitate bolts to pass through the through holes to fix the limiting rods 310 inside the sliding grooves 311. The surfaces of the first pressing ring 35 and the second pressing ring 37 are arranged at an angle, so that when the top surfaces of the first pressing ring 35 and the second pressing ring 37 are in contact with the surface of the fixed disk 34, the nozzle 32 and the suction pipe 33 are tilted downward and aligned with the flushing groove 39.

[0046] Step 2: Rotate the second reinforcing rod 54 and at the same time stretch the first reinforcing rod 51 so that the second reinforcing rod 54 slides out from the inside of the first reinforcing rod 51 to compress the first spring 53, rotate the first reinforcing rod 51 so that the hook 55 engages the groove 56 on the side wall of the first reinforcing rod 51, fix the first reinforcing rod 51 so that the first reinforcing rod 51 is aligned with the fixed pipe 66; use the crane to lift the prestressed pile 1 through the sling 12 so that the prestressed pile 1 passes through the guide rail 11 and contacts the surface of the soil layer; connect the device to an external power supply, turn on the high-pressure pump 21 and the mud pump 22, and the high-pressure pump 21 increases the speed and pressure of the water inside the clear water tank 24 and then transports it into the The interior of the bellows 31 and the nozzle 32; and the operation of the mud pump 22 generates suction inside the bellows 31 and the suction pipe 33 to extract the mud generated during the sinking process of the prestressed pile 1, and the mud enters the interior of the sedimentation tank 23. After the water passes through the sedimentation tank 23 and the mud is removed by sedimentation, it enters the interior of the clean water tank 24 to circulate the water; when the high-pressure water is ejected downward rapidly through the nozzle 32, a reverse thrust is generated on the nozzle 32 during the water spraying process, pushing the nozzle 32 toward the surface of the fixed disk 34, so that the first pressure ring 35 moves toward the surface of the fixed disk 34, so that the top surface of the first pressure ring 35 is close to the surface of the fixed disk 34, and the limit rod 310 is located The inside of the slide groove 311; the angle of the nozzle 32 is fixed so that the nozzle 32 is tilted downward to flush the soil; when the water enters the inside of the connecting groove 610 inside the first cylinder 36, the water moves downward inside the connecting groove 610 with an arc-shaped side wall, squeezing the fixed head 69 into the inside of the fixed tube 66, and the fixed head 69 and the support rod 65 move downward inside the fixed tube 66 to compress the second spring 68, and the movement of the support rod 65 drives the sliding rod 63 to move into the slot 62 at the top of the hook 55 to prevent the hook 55 from being separated from the first reinforcement rod 51; and the support rod 65 enters the inside of the mounting tube 61, and at the same time, the piston 64 contacts The top end of the mounting tube 61 is closed; and the operation of the driving mechanism 2 generates suction inside the suction tube 33, so that the mud generated by flushing the soil moves upward into the interior of the suction tube 33, and at the same time pushes the suction tube 33 toward the direction of the fixed disk 34. Similarly, the second pressure ring 37 is pressed against the surface of the fixed disk 34, so that the suction tube 33 is tilted and located on the side wall of the prestressed pile 1, and the bolts fixing the limit rod 310 are pulled out. During the pile sinking process, the reinforcement mechanism 5 and the fixing mechanism 6 increase the stability and firmness between the first cylinder 36 and the second cylinder 38, thereby preventing the nozzle 32 and the suction tube 33 from changing position during operation;

[0047] Step 3: When water is sprayed downward from the nozzle 32, high-pressure water is crushed to crush the soil around the prestressed pile 1, and the soil is squeezed downward under the weight of the prestressed pile 1. The soil under the prestressed pile 1 is washed away by the water, so that the prestressed pile 1 gradually enters the soil layer; in the process of spraying water from the nozzle 32, the sprayed water moves toward one end of the flushing trough 39, and the other end of the flushing trough 39 is provided with the suction pipe 33. The suction force is generated inside the suction pipe 33 to draw away the water and mud inside the flushing trough 39. The side wall of the flushing trough 39 is a funnel-shaped structure; along The height and width of the flushing trough 39 gradually decrease along the direction of water flow. When water moves along the flushing trough 39, the cross-sectional area of ​​water movement inside the flushing trough 39 gradually decreases, thereby increasing the speed of water inside the flushing trough 39, making it easier to cut the soil and drive the sediment. The suction pipe 33 is located on one side of the flushing trough 39 to quickly suck away the broken soil layer and sediment to avoid sediment accumulation. When water moves inside the first cylinder 36, part of the water passes through the support rod 65, the mounting pipe 61, the first reinforcement rod 51, the fixing plug 52, and the like. , the second reinforcing rod 54, the connecting hose 45 enters the interior of the connecting tube 44, and the high-speed water flow pushes the push plate 47, the rotating shaft 46 and the turbine 43 to rotate rapidly. When the turbine 43 rotates, suction is generated inside the water inlet pipe 42, thereby increasing the suction inside the suction pipe 33 and accelerating the efficiency of cleaning the mud by the suction pipe 33. At the same time, the suction at the inlet of the suction pipe 33 is increased, which facilitates the water and mud ejected from the inside of the flushing trough 39 to enter the inside of the suction pipe 33, increasing the speed of the water flow inside the flushing trough 39 and accelerating the cutting of the mud. The high-pressure water flows between the nozzle 32 and the suction pipe 33, and the nozzle 32 sprays water toward one side of the flushing trough 39. The suction pipe 33 absorbs the mud on the other side of the flushing trough 39, thereby accelerating the flow of water and making the water continuously cut the soil below the prestressed pile 1 like a wire saw. The nozzles 32 at both ends of the prestressed pile 1 are staggered, and the two streams of water move in opposite directions inside the flushing trough 39. The water flows crosswise and reversely cut the soil, thereby accelerating the efficiency of soil crushing, further accelerating the efficiency of water flow in crushing the soil, and accelerating the efficiency of pile sinking.

[0048] Step 4: When the top of the prestressed pile 1 is only one meter away from the soil surface, the driving mechanism 2 is turned off. At this time, the sprinkler head 32 no longer sprays water, and the second spring 68 pushes the support rod 65 and the slide rod 63 to reset. The slide rod 63 is disengaged from the hook 55, and the steel wire on the surface of the corrugated tube 31 is removed. The corrugated tube 31 is pulled to separate it from the reserved steel bar 13, and the corrugated tube 31 is shaken. Under the action of gravity and the corrugated tube 31, the first pressure ring 35 and the second pressure ring 37 tilt downward and separate from the fixed plate 34, and the side wall of the hook 55 is arc-shaped, which facilitates the separation of the hook 55 from the first reinforcement rod 51. The first spring 53 drives the first reinforcement rod 51 to contract, thereby facilitating the removal of the corrugated tube 31, the sprinkler head 32 and the suction pipe 33 from the side wall of the prestressed pile 1; finally, the prestressed pile 1 is driven into the soil using excavator equipment.

[0049] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A prestressed concrete H-type pile sinking structure, characterized in that: include: A driving mechanism (2) for conveying high-pressure water and recovering slurry is located on one side of the prestressed pile (1), and a pile sinking mechanism (3) for flushing soil and conveying slurry is installed on the side wall of the prestressed pile (1); The pile sinking mechanism (3) comprises a bellows (31), a nozzle (32) and a suction pipe (33); four bellows (31) are installed on the side wall of the prestressed pile (1), and two flushing grooves (39) are symmetrically provided on the bottom surface of the prestressed pile (1); the top end of the nozzle (32) is fixedly connected to the first cylinder (36); the side wall of the first cylinder (36) is installed with a first pressure ring (35) with an inclined top surface; the top end of the suction pipe (33) with a funnel-shaped bottom end is fixedly connected to the second cylinder (38); the second cylinder (38) ) is fixedly connected to the side wall of a second pressure ring (37) with an inclined top end, the bottom end of the prestressed pile (1) is installed with a fixed disk (34) with an arc-shaped side wall, the surface of the fixed disk (34) is provided with a plurality of sliding grooves (311), and the interior of the sliding grooves (311) is slidably connected to the limiting rod (310); the top ends of the first pressure ring (35) and the second pressure ring (37) are both installed with a plurality of the limiting rods (310), and the top ends of the first pressure ring (35) and the second pressure ring (37) are in contact with the surface of the fixed disk (34); On the same side of the prestressed pile (1), a reinforcement mechanism (5) for increasing the stability of the nozzle (32) and the suction pipe (33) is installed between the first pressure ring (35) and the second pressure ring (37), the reinforcement mechanism (5) comprising a second reinforcement rod (54) and a hook (55), the side wall of the second pressure ring (37) is rotatably connected to the second reinforcement rod (54), one end of the second reinforcement rod (54) is fixedly connected to the internal hollow fixed plug (52), the fixed plug (52) and the second reinforcement rod (54) are slidably connected to the inside of the first reinforcement rod (51); the side wall of the second reinforcement rod (54) is sleeved with a first spring (53), the two ends of the first spring (53) respectively abut against the fixed plug (52) and the first reinforcement rod (51); the top side wall of the first reinforcement rod (51) is provided with a groove (56), the side wall of the first pressure ring (35) is fixedly connected to the hook (55), and the hook (55) engages with the inside of the groove (56); A fixing mechanism (6) for increasing the firmness between the hook (55) and the first reinforcing rod (51) is installed on the side wall of the first pressure ring (35); the fixing mechanism (6) is connected to a pressurizing mechanism (4) through the reinforcing mechanism (5); and the pressurizing mechanism (4) for increasing the internal suction force of the suction pipe (33) is installed on the side wall of the bellows (31); The fixing mechanism (6) includes a mounting tube (61) and a fixing tube (66); the fixing tube (66) is installed obliquely inside the first pressure ring (35) and the first cylinder (36); the inside of the fixing tube (66) is slidably connected to the support rod (65) and the fixing head (69); the inside of the fixing head (69) is fixedly connected to the support rod (65); a limiting ring (67) is installed on the side wall of the fixing tube (66); a second spring (68) is sleeved on the side wall of the support rod (65); the two ends of the second spring (68) respectively contact the limiting ring (67) and the fixing head (69); the side wall of the support rod (65) is fixedly connected to the piston (64); the top of the first reinforcement rod (51) is fixedly connected to the piston (64); The end is fixedly connected to the mounting tube (61), the top end of the mounting tube (61) is magnetic, the interior of the mounting tube (61) is slidably connected and adsorbs the support rod (65), and the piston (64) contacts the side wall of the mounting tube (61); the side wall of the support rod (65) is fixedly connected to the slide rod (63), the top end of the hook (55) is provided with a card slot (62), and the slide rod (63) is slidably connected to the inside of the card slot (62); the first cylinder (36) is provided with a connecting groove (610), the top side wall of the connecting groove (610) is an arc-shaped structure, the two ends of the fixed head (69) are hemispherical, and the top end of the fixed head (69) is aligned with the turning point of the connecting groove (610).

2. The prestressed concrete H-type pile sinking structure according to claim 1 is characterized in that: The driving mechanism (2) includes a sedimentation tank (23) and a clear water tank (24). The clear water tank (24) is installed on one side of the sedimentation tank (23). A mud pump (22) is installed inside the sedimentation tank (23). The mud pump (22) is connected to the bellows (31) connected to the suction pipe (33). The high-pressure pump (21) is connected to the inside of the clear water tank (24), and the high-pressure pump (21) is connected to the bellows (31) connected to the nozzle (32).

3. The prestressed concrete H-type pile sinking structure according to claim 2 is characterized in that: The prestressed pile (1) is fixed to the surface of the soil layer via a guide rail (11), and a sling (12) is installed at the top of the prestressed pile (1).

4. The prestressed concrete H-type pile sinking structure according to claim 3 is characterized in that: A plurality of reserved steel bars (13) are symmetrically arranged on the side wall of the prestressed pile (1) having an "H"-shaped cross section, the top reserved steel bar (13) is fixed to the corrugated pipe (31) by binding with steel wire, the side wall of the bottom reserved steel bar (13) is welded to the fixing plate (34), and the other reserved steel bars (13) are engaged with the side walls of the corrugated pipe (31).

5. The prestressed concrete H-type pile sinking structure according to claim 4 is characterized in that: The side wall of the flushing trough (39) is in a funnel-shaped structure; along the direction of water flow, the height and width of the flushing trough (39) gradually decrease.

6. The prestressed concrete H-type pile sinking structure according to claim 5, characterized in that: The boosting mechanism (4) includes a boosting cylinder (41) and a water inlet pipe (42), the side wall of the bellows (31) communicating with the suction pipe (33) is fixedly connected to the water inlet pipe (42), and the side wall of the boosting cylinder (41) is respectively installed with a water outlet pipe (49) and the water inlet pipe (42) with a funnel shape inside; the inside of the boosting cylinder (41) is rotatably connected to the turbine (43); the side wall of the boosting cylinder (41) is fixedly connected to the connecting cylinder (44), and the inside of the connecting cylinder (44) is rotatably connected to the rotating shaft (46) and the pushing plate (47), and the rotating shaft (46) is fixedly connected to the turbine (43) and the pushing plate (47) with an arc-shaped side wall; the side wall of the connecting cylinder (44) is installed with a connecting hose (45) and a connecting pipe (48), the top end of the connecting pipe (48) is connected to the water outlet pipe (49), and the water outlet pipe (49) is obliquely connected to the side wall of the bellows (31).

7. The prestressed concrete H-type pile sinking structure according to claim 6, characterized in that: The bottom end of the connecting hose (45) is threadedly connected to the second reinforcing rod (54), and the connecting hose (45) is communicated with the interior of the mounting tube (61) through the second reinforcing rod (54), the fixing plug (52) and the first reinforcing rod (51).

8. The pile sinking method of the prestressed concrete H-type pile sinking structure according to claim 7, specifically comprising the following steps: Step 1: When the prestressed pile (1) is driven into the soil layer, the corrugated pipe (31) is placed on the side wall of the reserved steel bar (13), and the side wall of the lowest reserved steel bar (13) is welded to the fixing plate (34) according to the designed position; the uppermost reserved steel bar (13) and the corrugated pipe (31) are fixed by steel wire, and the other reserved steel bars (13) are bent so that the reserved steel bars (13) are engaged and squeezed with the corrugated pipe (31), and the corrugated pipe (31) is fixed to the side wall of the prestressed pile (1); the nozzle (32) and the suction pipe (33) are moved so that the nozzle (32) and the suction pipe (33) are The limiting rods (310) above the tube (33) respectively enter the interior of the fixed disk (34), the nozzle (32) and the suction pipe (33) are aligned with the flushing groove (39), the side wall of the limiting rod (310) is provided with a through hole, so that the bolt passes through the through hole to fix the limiting rod (310) inside the slide groove (311), and the surfaces of the first pressure ring (35) and the second pressure ring (37) are inclined so that when the top surfaces of the first pressure ring (35) and the second pressure ring (37) are in contact with the surface of the fixed disk (34), the nozzle (32) and the suction pipe (33) are inclined downward and aligned with the flushing groove (39); Step 2: rotate the second reinforcing rod (54) and simultaneously stretch the first reinforcing rod (51) so that the second reinforcing rod (54) slides out from the inside of the first reinforcing rod (51) to compress the first spring (53); rotate the first reinforcing rod (51) so that the hook (55) engages with the groove (56) on the side wall of the first reinforcing rod (51); fix the first reinforcing rod (51) so that the first reinforcing rod (51) is aligned with the fixing pipe (66); use a crane to lift the prestressed pile (1) through the sling (12) so that the prestressed pile (1) passes through the guide rail (11) and contacts the soil surface; turn on the driving mechanism (2), the driving mechanism (2) The mechanism (2) operates to cause high-pressure water to be rapidly ejected downward through the nozzle (32), and generates a reverse thrust on the nozzle (32) during the water spraying process, pushing the nozzle (32) toward the surface of the fixed disk (34), causing the first pressure ring (35) to move toward the surface of the fixed disk (34), causing the top surface of the first pressure ring (35) to be in close contact with the surface of the fixed disk (34), and the limiting rod (310) is located inside the slide groove (311); the nozzle (32) is fixed at an angle, so that the nozzle (32) is tilted downward to flush the soil; when water enters the interior of the connecting groove (610) inside the first cylinder (36), the water flows into the connecting groove (610) with an arc-shaped side wall. 0) moves downward, squeezing the fixed head (69) into the interior of the fixed tube (66), the fixed head (69) and the support rod (65) move downward in the interior of the fixed tube (66) to compress the second spring (68), and the movement of the support rod (65) drives the slide rod (63) to move into the slot (62) at the top of the hook (55), preventing the hook (55) from being separated from the first reinforcement rod (51); and the support rod (65) enters the interior of the mounting tube (61), and at the same time the piston (64) contacts the top of the mounting tube (61), closing the top of the mounting tube (61); and the operation of the driving mechanism (2) causes the Suction is generated inside the suction pipe (33), and the mud generated by flushing the soil moves upward into the interior of the suction pipe (33), while pushing the suction pipe (33) toward the direction of the fixed disk (34). Similarly, the second pressure ring (37) is pressed against the surface of the fixed disk (34), so that the suction pipe (33) is tilted and located on the side wall of the prestressed pile (1), and the bolts fixing the limit rod (310) are pulled out. During the pile sinking process, the stability and firmness between the first cylinder (36) and the second cylinder (38) are increased by the reinforcement mechanism (5) and the fixing mechanism (6), so as to prevent the nozzle (32) and the suction pipe (33) from changing positions during operation. Step 3: When water is sprayed downward from the nozzle (32), high-pressure water crushes the soil around the prestressed pile (1), and the soil is squeezed downward under the weight of the prestressed pile (1), the soil below the prestressed pile (1) is washed away by the water, so that the prestressed pile (1) gradually enters the soil layer; in the process of spraying water from the nozzle (32), the sprayed water moves toward one end of the flushing trough (39), and the suction pipe (33) is provided at the other end of the flushing trough (39). Suction is generated inside the suction pipe (33) to draw away the water and mud inside the flushing trough (39), and the side wall of the flushing trough (39) is in a funnel-shaped structure; along the direction of water flow, the height and width of the flushing trough (39) gradually decrease. When the water moves along the flushing trough (39), the cross-sectional area of ​​the water moving inside the flushing trough (39) gradually decreases, thereby increasing the speed of the water inside the flushing trough (39), making it easier to cut the soil and drive the sediment, and the suction pipe (33) is located on one side of the flushing trough (39), quickly sucking away the broken soil layer and sediment to avoid sediment accumulation; high-pressure water flows between the nozzle (32) and the suction pipe (33), continuously cutting the soil below the prestressed pile (1) like a wire saw, and the nozzles (32) at both ends of the prestressed pile (1) are staggered, and the two water flows move in opposite directions inside the flushing trough (39), further accelerating the efficiency of the water flow in breaking the soil and accelerating the efficiency of pile sinking; Step 4: When the top of the prestressed pile (1) is only one meter away from the soil surface, the driving mechanism (2) is turned off. At this time, the nozzle (32) no longer sprays water. The second spring (68) pushes the support rod (65) and the slide rod (63) to reset. The slide rod (63) is separated from the hook (55). The steel wire on the surface of the corrugated pipe (31) is removed. The corrugated pipe (31) is pulled to separate it from the reserved steel bar (13). The corrugated pipe (31) is shaken. Under the action of gravity and the action of the corrugated pipe (31), the corrugated pipe (31) is When the first pressure ring (35) and the second pressure ring (37) are used, they tilt downward and separate from the fixed plate (34), and the side wall of the hook (55) is arc-shaped, which facilitates the hook (55) to separate from the first reinforcing rod (51). The first spring (53) drives the first reinforcing rod (51) to contract, thereby facilitating the removal of the bellows (31), the nozzle (32) and the suction pipe (33) from the side wall of the prestressed pile (1); finally, the prestressed pile (1) is driven into the soil layer using an excavator.

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