Prestressed concrete pipe pile construction deviation rectifying device and method
By using a combination device of arc-shaped support plate and traction cable in the construction of prestressed concrete pipe piles, the pressure problem of airbag on the inner wall of the drilling is solved, the precise correction of the pile body is achieved, the deviation correction efficiency and effect are improved, and the Stability and position accuracy of pile body.
Patent Information
- Application Number
- CN202411444909.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2024-12-13
AI Technical Summary
During the construction of existing prestressed concrete pipe piles, the elastic force of the airbag will directly act on the inner wall of the drilling hole during the correction process, which may cause the inner wall to be deformed or damaged, and the correction effect is not ideal, because the force of the airbag is absorbed by the inner wall, reducing the pile. body correction efficiency.
Using a stable biasing device including arc-shaped support plates, sliding support rods, driving gears, traction cables and other components, a uniform force is applied through the cooperation of arc-shaped support plates and rollers, and the tension and rotation of the traction cables are achieved. Accurate correction of the pile body ensures the verticality and position accuracy of the pile body.
This device can effectively avoid deformation and damage of the inner wall of the drilling hole, improve deviation correction efficiency and effect, ensure the stability and load-bearing capacity of the pile body, and achieve accurate adjustment of the pile body position and verticality.
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Figure CN119122029A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of pile foundation construction, and in particular to a deviation correction device and method for prestressed concrete pipe pile construction. Background Art
[0002] Prestressed concrete pipe pile construction is a common deep foundation construction method that is suitable for a variety of geological conditions. It involves driving or statically pressing a tubular pile made of prestressed concrete into the ground through a specific machine to achieve the purpose of bearing the weight of the building. The construction process includes key steps such as site preparation, pile location, pile driving, pile connection, and quality inspection. Due to its high strength and good adaptability, prestressed concrete pipe piles are widely used in building foundation engineering.
[0003] During the construction process, due to complex and changeable geological conditions or improper construction operations, prestressed concrete piles sometimes tilt or deflect. To ensure the quality of the project, these deviations must be corrected. Correction work is usually carried out after the pile position is detected to be inaccurate, including detection and evaluation, formulation of correction plans, implementation of correction measures, and quality re-inspection after completion.
[0004] The goal of deviation correction is to adjust the position of the pipe pile to meet the requirements of the design specifications. For example, a device and construction method for preventing the tilting of pipe-sinking cast-in-place piles with publication number CN109137904B relates to the field of construction application technology of pile foundations. The prior art includes a pile body, and a plurality of elastic air bags are evenly arranged on the upper part of the pile body. The elastic air bags are composed of elastic walls and inflatable chambers. The elastic air bags expand after being inflated, and the air cushion is kept vertical and tightly wrapped around the pile body before the pile sinking begins, so that the pile sinks steadily. After the pile body tilts at a small angle, the device is the main deviation correction device, which adjusts the angle of the pile body by unilateral ventilation and squeezing the pile body on the deflected side. During the pile sinking process, the pile body is tightly wrapped by the inflation of the elastic air bag, which can prevent the pile body from tilting due to uneven force on the pile body.
[0005] However, the above-mentioned prior art still has some defects when correcting pile foundations:
[0006] 1. The above-mentioned prior art corrects the angle of the pile by adjusting the blower opposite to the inclination direction of the pile body and increasing the wind force of the blower in the deflected direction at the same time, squeezing the pile by the expansion of the elastic airbag and the external force on one side of the pile body. However, in this process, the elastic force of the airbag not only acts on the pile body, but also directly acts on the inner wall of the borehole. Since the airbag will evenly apply force to the surroundings when it expands, the inner wall of the borehole will also be squeezed. The pressure on the inner wall may cause its local deformation or displacement, especially when the geological conditions are relatively fragile or unstable. Secondly, if the strength of the inner wall material is not enough to withstand this pressure, it may cause cracks or damage to the inner wall, thereby affecting the stability and bearing capacity of the pile body.
[0007] 2. The above-mentioned prior art corrects the angle of the pile by squeezing the pile by the expansion of the elastic airbag and applying external force to one side of the pile body. Since the pressure exerted by the airbag acts on the pile body and the inner wall of the borehole at the same time, this may cause the correction effect to be less than expected. Ideally, we hope that the elastic force of the airbag can be completely converted into a correction force for the pile body, but in fact, part of the force is absorbed by the inner wall, which reduces the efficiency and effect of the pile correction.
[0008] Based on this, and in accordance with the above-mentioned viewpoints, there is still room for improvement in the existing technology for correcting pile foundations. Summary of the invention
[0009] In order to solve the above technical problems, the present application provides a prestressed concrete pipe pile construction correction device and method, which adopts the following technical solutions:
[0010] In a first aspect, a prestressed concrete pipe pile construction deviation correction device comprises a pile body, wherein the upper and lower ends of the pile body are respectively provided with an end plate and an end tail plate, the lower end of the end tail plate is provided with a pile tip, the end plate is provided with a connecting ring, and a stable deviation corrector for correcting the pipe pile is provided between the connecting ring and the pile tip;
[0011] The stable deviation corrector comprises a plurality of circumferentially evenly distributed bases arranged on the ground, a sliding support rod is slidably arranged on the base, and an arc-shaped support plate corresponding to the pile body is arranged at one end of the sliding support rod.
[0012] Preferably, a driving rack is provided on the sliding support rod, and a support frame is symmetrically provided on one side of the base, wherein a driving gear meshing with the driving rack is provided on one of the support frames, and a gear ring meshing with the driving gear is provided between several bases through the rotation of the support frame.
[0013] Preferably, the stable deflection corrector further comprises a plurality of avoidance grooves symmetrically provided on the arc-shaped support plate, and rollers are rotatably arranged in the avoidance grooves.
[0014] Preferably, a correcting member is provided between the sliding support rod and the arc-shaped support plate;
[0015] The correction piece includes a sliding groove on a sliding support rod, a sliding seat is arranged in the sliding groove, a driving screw connected to the sliding seat is slidably penetrated on the sliding support rod, and an adjusting gear threadedly connected to the driving screw is rotatably arranged on the sliding support rod.
[0016] Preferably, a traction wheel is rotatably provided on the slide seat, a guide groove is provided on the arc-shaped support plate, and a guide wheel is rotatably provided in the guide groove;
[0017] The connecting ring is provided with an upper correction wheel corresponding to the guide wheel, and the pile tip is provided with a lower correction wheel corresponding to the guide wheel.
[0018] Preferably, a traction rope is wound around the traction wheel, and one end of the traction rope passes through the guide wheel, the lower correction wheel and the upper correction wheel in sequence and then goes back to the traction wheel to form a loop.
[0019] Preferably, the traction rope between the traction wheel, the guide wheel and the upper correction wheel forms a triangular correction section.
[0020] Preferably, the traction rope between the traction wheel, the guide wheel and the lower straightening wheel forms a U-shaped traction section.
[0021] In a second aspect, a method for correcting deviation of prestressed concrete pipe pile construction is provided, and the method for using the method comprises the following steps:
[0022] S1: When constructing prestressed concrete pipe piles, first clean and level the construction site to ensure that the construction area meets the requirements, and then accurately measure and mark the pile positions according to the design drawings;
[0023] S2: After that, the pile body is lifted so that the pile body is perpendicular to the ground and the pile tip is aligned with the ground, and then the gear ring is driven to rotate. The rotating gear ring drives several driving gears to rotate synchronously through meshing, and the rotating driving gear drives the sliding support rod through the driving rack to make the arc support plate gather toward the pile body until the roller is pressed against the pile body, exerting force on the pile body;
[0024] S3: After the pile erection roller is pressed against the pile body, the traction rope wound on the traction wheel passes through the guide wheel, the lower correction wheel and the upper correction wheel in sequence and then goes back to the traction wheel to form a loop, that is, the traction rope is connected into a circle, and the driving screw drives the slide to move away from the pile body, so that the traction rope is tightened and a correction force is applied to the pile body;
[0025] S4: Then the pile driver is used to drive the pile. The pile driver continuously hammers the end plate to make the pile tip drill into the ground for pile sinking. The pile driver gradually presses the pile body into the soil through repeated hammering until the designed depth or the predetermined bearing capacity is reached;
[0026] S5: When the pile body tilts, according to the tilt of the pile body, the traction section of the traction rope on the tilted side is shortened and transferred to the correction section, while the traction correction section on the opposite side is shortened and transferred to the traction section, until the lengths of the traction correction and correction sections of all traction ropes are restored to a relatively equal length, thereby achieving the correction of the pile body;
[0027] S6: When the pile body is greatly offset or tilted and needs to be pulled out for re-sinking, the pile body is first corrected, and then all the traction wheels are driven to rotate synchronously, so that the traction section of the traction rope on the inclined side is shortened and transferred to the correction section. The traction section pulls the pile tip so that the pile body is gradually pulled out vertically upward.
[0028] In summary, the present application includes at least one of the following beneficial technical effects:
[0029] 1. The gear ring of the present invention drives a plurality of driving gears to rotate synchronously through meshing, and the rotating driving gear drives the sliding support rod through the driving rack to make the arc support plate gather toward the pile body until the roller is pressed against the pile body, thereby applying a uniform force to the pile body, and the arc support plate can flexibly adapt to the shape and position of the pile body.
[0030] 2. The present invention forms a loop by passing the traction rope wound on the traction wheel through the guide wheel, the lower correction wheel and the upper correction wheel in sequence, and then wrapping it back to the traction wheel. That is, the traction rope is connected into a circle. The driving screw rod will drive the slide seat to move away from the pile body, so that the traction rope is tightened. The tightening of the traction rope will apply a correction force to the pile body through the interaction between the traction wheel, the guide wheel and the correction wheel.
[0031] 3. In the process of hammering piles, the present invention can detect the length of the correction section and the traction section on each traction rope, or detect the verticality of the pile body and the ground through the sensor in the interval between each hammering; in the interval between each hammering, the traction section on the inclined side is shortened and transferred to the correction section, while the traction section on the opposite side is shortened and transferred to the traction section, until the lengths of the traction sections and the correction sections of all traction ropes are restored to a relatively equal length to correct the pile body, thereby adjusting the verticality of the pile body and the ground, thereby ensuring the verticality and position accuracy of the pile body. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] Figure 1 It is a structural schematic diagram of the present invention.
[0033] Figure 2 It is a cross-sectional view of the present invention.
[0034] Figure 3 It is a schematic structural diagram of the stable deflection corrector of the present invention.
[0035] Figure 4 It is a structural schematic diagram of the arc support plate of the present invention.
[0036] Figure 5 It is a cross-sectional view between the stable deviation corrector and the correction piece of the present invention.
[0037] Figure 6 It is a schematic diagram of the structure between the upper correction wheel, the lower correction wheel and the traction rope of the present invention.
[0038] Figure 7 Schematic diagram of the correction piece of the present invention
[0039] Figure 8 The present invention Figure 7 A partial enlarged view of point A in the middle.
[0040] Explanation of the reference numerals in the accompanying drawings: 1. Pile body; 11. End plate; 12. End plate; 2. Pile tip; 3. Connecting ring; 4. Stabilizing corrector; 41. Base; 42. Sliding support rod; 43. Arc support plate; 44. Driving rack; 45. Support frame; 46. Driving gear; 47. Gear ring; 48. Avoidance groove; 49. Roller; 5. Correction member; 51. Sliding groove; 52. Sliding seat; 53. Driving screw; 54. Adjusting gear; 55. Traction wheel; 56. Guide groove; 57. Guide wheel; 58. Upper correction wheel; 59. Lower correction wheel; 6. Traction rope; 61. Correction section; 62. Traction section. DETAILED DESCRIPTION
[0041] The following is combined with Figures 1 to 8 This application is described in further detail.
[0042] The embodiment of the present application discloses a prestressed concrete pipe pile construction correction device and method, which ensures the verticality and position accuracy of the pile body by passing a cable along a cable wheel to form a loop and then tightening the cable to apply a correction force to the pipe pile.
[0043] Reference Figure 1 and Figure 2 As shown, a prestressed concrete pipe pile construction correction device comprises a pile body 1, wherein the upper end and the lower end of the pile body 1 are respectively provided with an end plate 11 and an end tail plate 12, and the lower end of the end tail plate 12 is provided with a pile tip 2.
[0044] During the construction of prestressed concrete pipe piles, the construction site is first cleaned and leveled to ensure that the construction area meets the requirements. Then, according to the design drawings, the pile positions are accurately measured and marked to ensure that the pile body 1 is arranged at a predetermined spacing and position. After that, the pile body 1 is lifted so that the pile body 1 is perpendicular to the ground and the pile tip 2 is aligned with the ground. Then, the pile is driven by a pile driver. The pile driver continuously hammers the end tail plate 12 to make the pile tip 2 drill into the ground for pile sinking. The pile driver gradually presses the pile body 1 into the soil through repeated hammering until it reaches the designed depth or reaches the predetermined bearing capacity.
[0045] Among them, a connecting ring 3 is provided on the end plate 11, and a stable corrector 4 for correcting the pipe pile is provided between the connecting ring 3 and the pile tip 2. The stable corrector 4 can prevent the pile body 1 from tilting and shifting during the pile-sinking process. At the same time, when the pile body 1 is tilted or shifted at a large angle, the stable corrector 4 can also pull out the pile body 1 and hammer the pile again.
[0046] Reference Figure 2 , Figure 3 and Figure 4 As shown, specifically, the stable corrector 4 includes a plurality of circumferentially evenly distributed bases 41 arranged on the ground, a sliding strut 42 is slidably arranged on the base 41, a driving rack 44 is arranged on the sliding strut 42, and a support frame 45 is symmetrically arranged on one side of the base 41, and a driving gear 46 meshing with the driving rack 44 is arranged on one of the support frames 45.
[0047] After the pile is erected, one of the driving gears 46 is driven to rotate through the existing motor driving technology. The rotating driving gear 46 will drive the ring gear 47 rotatably arranged between the several bases 41 through the support frame 45 to rotate through engagement. The rotating ring gear 47 will drive the several driving gears 46 to rotate synchronously through engagement, and the rotating driving gear 46 will move the sliding support rod 42 toward the pile body 1 through engagement with the driving rack 44.
[0048] The moving sliding strut 42 will drive the arc-shaped support plate 43 set at one end thereof to move toward the pile body 1. The arc-shaped support plate 43 corresponds to the pile body 1 and has multiple avoidance grooves 48 symmetrically opened on the arc-shaped support plate 43 (the figure shows that there are two avoidance grooves 48 symmetrically opened); and rollers 49 are rotatably set in the avoidance grooves 48, and a number of sliding struts 42 will drive the arc-shaped support plates 43 to gather toward the pile body 1 until the rollers 49 are pressed against the pile body 1, thereby applying a uniform force to the pile body 1, and at the same time, the arc-shaped support plate 43 can flexibly adapt to the shape and position of the pile body 1.
[0049] During the pile driving process, the sinking of the pile body 1 will cause the roller 49 to rotate due to the friction force. Even if the pile body 1 is slightly tilted or offset, the arc support plate 43 and the roller 49 can automatically adjust to maintain the verticality and position of the pile body 1.
[0050] Reference Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, when the pile body 1 is greatly offset or tilted, it is corrected by the correction member 5 provided between the sliding support rod 42 and the arc support plate 43 to ensure the verticality and position of the pile body 1. At the same time, the corrector can also pull out the pile body 1 and hammer it again to sink the pile.
[0051] Specifically, the correction member 5 includes a sliding groove 51 formed on the sliding support rod 42, a sliding seat 52 is arranged in the sliding groove 51, a traction wheel 55 is rotatably arranged on the sliding seat 52, a guide groove 56 is formed on the arc support plate 43, a guide wheel 57 is rotatably arranged in the guide groove 56; an upper correction wheel 58 corresponding to the guide wheel 57 is arranged on the connecting ring 3, and a lower correction wheel 59 corresponding to the guide wheel 57 is arranged on the pile tip 2.
[0052] After the pile roller 49 is pressed against the pile body 1, the traction rope 6 wound on the traction wheel 55 passes through the guide wheel 57, the lower correction wheel 59 and the upper correction wheel 58 in sequence and then goes back to the traction wheel 55 to form a loop, that is, the traction rope 6 is connected into a circle.
[0053] A driving screw 53 connected to the sliding seat 52 is slidably provided on the sliding support rod 42 , and an adjusting gear 54 is rotatably provided on the sliding support rod 42 .
[0054] The adjusting gear 54 is driven to rotate by the existing motor driving technology, and the rotating driving gear 46 drives the driving screw 53 to move in the sliding support rod 42 through the threaded connection with the driving screw 53. The moving driving screw 53 drives the sliding seat 52 to move away from the pile body 1, so that the traction rope 6 is tightened. The tightening of the traction rope 6 will apply a correction force to the pile body 1 through the interaction between the traction wheel 55, the guide wheel 57 and the correction wheel.
[0055] The traction rope 6 between the traction wheel 55 , the guide wheel 57 and the upper straightening wheel 58 forms a triangular straightening section 61 , and the traction rope 6 between the traction wheel 55 , the guide wheel 57 and the lower straightening wheel 59 forms a U-shaped traction section 62 .
[0056] Continue to refer to Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, during the hammering pile sinking process, the traction section 62 will drill into the ground along with the pile tip 2, so that the traction section 62 will be gradually lengthened, and the corresponding correction section 61 will be shortened, while the total length of the overall loop of the traction rope remains unchanged, that is, the lengthened part of the traction section 62 is transferred from the shortened part of the correction section 61. This transfer ensures that the tension of the traction rope 6 is effectively utilized to accurately correct the pile body 1.
[0057] When the pile body 1 tilts, the correction section 61 of the traction rope 6 on the tilted side will be shortened, while the traction section 62 will be lengthened. The correction section 61 of the traction rope 6 on the corresponding side will be lengthened, while the traction section 62 will be shortened. At this time, the existing motor drive technology drives the traction wheel 55 to rotate. Since the traction rope 6 is wound around the traction wheel 55, the rotation of the traction wheel 55 can change the length of the correction section 61 and the traction section 62 of the traction rope 6, that is, the correction section 61 of the traction rope 6 is shortened and transferred to the traction section 62, or the traction rope 6 is shortened and transferred to the correction section 61.
[0058] According to the inclination of the pile body 1, the traction segment 62 on the inclined side is shortened and transferred to the correction segment 61, while the traction segment 62 on the opposite side is shortened and transferred to the traction segment 62, until the lengths of the traction segments 62 and the correction segments 61 of all traction ropes 6 are restored to relatively equal lengths, thereby achieving the correction of the pile body 1.
[0059] At the same time, during the hammering pile sinking process, in the interval between each hammering, the length of the correction section 61 and the traction section 62 on each traction rope 6 can be detected by the sensor, or the verticality of the pile body 1 and the ground can be detected by the sensor; in the interval between each hammering, the traction section 62 on the inclined side is shortened and transferred to the correction section 61, while the traction section 62 on the opposite side is shortened and transferred to the traction section 62, until the lengths of the traction sections 62 and the correction sections 61 of all traction ropes 6 are restored to a relatively equal length to correct the pile body 1, thereby adjusting the verticality of the pile body 1 and ensuring the accuracy of the verticality and position of the pile body 1.
[0060] When the pile body 1 is greatly offset or tilted and needs to be pulled out for re-sinking, the traction section 62 of the tilted side traction rope 6 is first shortened and transferred to the correction section 61, while the traction section 62 on the opposite side is shortened and transferred to the traction section 62, until the lengths of the traction sections 62 and the correction sections 61 of all traction ropes 6 are restored to relatively equal lengths to complete the correction of the pile body 1.
[0061] By using the existing motor drive technology, all the traction wheels 55 are driven to rotate synchronously, so that the inclined side traction traction section 62 is shortened and transferred to the correction section 61. At this time, since the traction sections 62 of all traction ropes 6 are shortened synchronously, the traction sections 62 will pull the pile tip 2 so that the pile body 1 is gradually pulled out vertically upward.
[0062] Finally, the present invention also provides a method for correcting the deviation of prestressed concrete pipe pile construction, and the method for using the method comprises the following steps:
[0063] S1: During the construction of prestressed concrete pipe piles, the construction site is first cleaned and leveled to ensure that the construction area meets the requirements, and then the pile positions are accurately measured and marked according to the design drawings to ensure that the pile bodies 1 are arranged at the predetermined spacing and position.
[0064] S2: Then, the pile body 1 is lifted so that the pile body 1 is perpendicular to the ground and the pile tip 2 is aligned with the ground, and then one of the driving gears 46 is driven to rotate. The rotating driving gear 46 will drive the ring gear 47 to rotate through meshing, and the rotating ring gear 47 will drive several driving gears 46 to rotate synchronously through meshing. The rotating driving gear 46 will move the sliding support rod 42 toward the pile body 1 through meshing with the driving rack 44, and several sliding support rods 42 will drive the arc support plate 43 to gather toward the pile body 1 until the roller 49 is pressed against the pile body 1, thereby applying a uniform force to the pile body 1, and the arc support plate 43 can flexibly adapt to the shape and position of the pile body 1.
[0065] S3: After the pile erection roller 49 is pressed against the pile body 1, the traction rope 6 wound on the traction wheel 55 passes through the guide wheel 57, the lower correction wheel 59 and the upper correction wheel 58 in sequence and then goes back to the traction wheel 55 to form a loop, that is, the traction rope 6 is connected into a circle, and the driving screw 53 will drive the slide 52 to move away from the pile body 1, so that the traction rope 6 is tightened. The tightening of the traction rope 6 will apply a correction force to the pile body 1 through the interaction between the traction wheel 55, the guide wheel 57 and the correction wheel.
[0066] S4: Then the pile driver is used to drive the pile. The pile driver continuously hammers the end plate 12 to make the pile tip 2 drill into the ground for pile sinking. The pile driver gradually presses the pile body 1 into the soil through repeated hammering until the designed depth or the predetermined bearing capacity is reached.
[0067] S5: When the pile body 1 tilts, according to the tilt of the pile body 1, the segment of the traction rope 6 on the tilted side is shortened and transferred to the correction segment 61, while the traction segment 62 on the opposite side is shortened and transferred to the traction segment 62, until the lengths of the traction segments 62 and the correction segments 61 of all traction ropes 6 are restored to relatively equal lengths, thereby achieving the correction of the pile body 1.
[0068] S6: When the pile body 1 is greatly offset or tilted and needs to be pulled out for re-sinking, the pile body 1 is first corrected, and then all the traction wheels 55 are driven to rotate synchronously, so that the section of the traction rope 6 on the inclined side is shortened and transferred to the correction section 61. At this time, since the traction sections 62 of all the traction ropes 6 are shortened synchronously, the traction sections 62 will pull the pile tip 2 so that the pile body 1 is gradually pulled out vertically upward.
[0069] S7: During the hammering pile sinking process, in the interval between each hammering, the length of the correction section 61 and the traction section 62 on each traction rope 6 can be detected by a sensor, or the verticality of the pile body 1 and the ground can be detected by a sensor; in the interval between each hammering, the traction section 62 on the inclined side is shortened and transferred to the correction section 61, while the traction section 62 on the opposite side is shortened and transferred to the traction section 62, until the lengths of the traction sections 62 and the correction sections 61 of all traction ropes 6 are restored to a relatively equal length to correct the pile body 1, thereby adjusting the verticality of the pile body 1 and ensuring the accuracy of the verticality and position of the pile body 1.
[0070] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A prestressed concrete pipe pile construction correction device, comprising a pile body (1), wherein the upper end and the lower end of the pile body (1) are respectively provided with an end plate (11) and an end plate (12), and the lower end of the end plate (12) is provided with a pile tip (2), characterized in that: The end plate (11) is provided with a connecting ring (3), and a stabilizing corrector (4) for correcting the pipe pile is provided between the connecting ring (3) and the pile tip (2); The stable deviation corrector (4) comprises a plurality of circumferentially evenly distributed bases (41) arranged on the ground, a sliding support rod (42) being slidably arranged on the base (41), and an arc-shaped support plate (43) corresponding to the pile body (1) being arranged at one end of the sliding support rod (42).
2. A prestressed concrete pipe pile construction correction device according to claim 1, characterized in that: A driving rack (44) is arranged on the sliding support rod (42), a support frame (45) is symmetrically arranged on one side of the base (41), a driving gear (46) meshing with the driving rack (44) is arranged on one of the support frames (45), and a gear ring (47) meshing with the driving gear (46) is rotatably arranged between a plurality of the bases (41) via the support frames (45).
3. A prestressed concrete pipe pile construction correction device according to claim 1, characterized in that: The stable deviation corrector (4) further comprises a plurality of avoidance grooves (48) symmetrically arranged on the arc-shaped support plate (43), and rollers (49) are rotatably arranged in the avoidance grooves (48).
4. A prestressed concrete pipe pile construction correction device according to claim 2, characterized in that: A correcting member (5) is provided between the sliding support rod (42) and the arc-shaped support plate (43); The correction member (5) comprises a sliding groove (51) formed on a sliding support rod (42), a sliding seat (52) being arranged in the sliding groove (51), a driving screw rod (53) connected to the sliding seat (52) being slidably penetrated through the sliding support rod (42), and an adjusting gear (54) threadedly connected to the driving screw rod (53) being rotatably arranged on the sliding support rod (42).
5. A prestressed concrete pipe pile construction correction device according to claim 4, characterized in that: A traction wheel (55) is rotatably provided on the slide seat (52), a guide groove (56) is provided on the arc-shaped support plate (43), and a guide wheel (57) is rotatably provided in the guide groove (56); The connecting ring (3) is provided with an upper correction wheel (58) corresponding to the guide wheel (57), and the pile tip (2) is provided with a lower correction wheel (59) corresponding to the guide wheel (57).
6. A prestressed concrete pipe pile construction correction device according to claim 5, characterized in that: A traction rope (6) is wound around the traction wheel (55), and one end of the traction rope (6) passes through the guide wheel (57), the lower correction wheel (59) and the upper correction wheel (58) in sequence and then goes back to the traction wheel (55) to form a loop.
7. A prestressed concrete pipe pile construction correction device according to claim 6, characterized in that: The traction rope (6) between the traction wheel (55), the guide wheel (57) and the upper correction wheel (58) forms a triangular correction section (61).
8. A prestressed concrete pipe pile construction correction device according to claim 6, characterized in that: The traction rope (6) between the traction wheel (55), the guide wheel (57) and the lower straightening wheel (59) forms a U-shaped traction section (62).
9. A method for correcting the deviation of prestressed concrete pipe piles, using a device for correcting the deviation of prestressed concrete pipe piles as claimed in any one of claims 1 to 8, characterized in that: The method of use includes the following steps: S1: When constructing prestressed concrete pipe piles, first clean and level the construction site to ensure that the construction area meets the requirements, and then accurately measure and mark the pile positions according to the design drawings; S2: The pile body (1) is then lifted so that the pile body (1) is perpendicular to the ground and the pile tip (2) is aligned with the ground, and the gear ring (47) is driven to rotate. The rotating gear ring (47) drives a plurality of driving gears (46) to rotate synchronously through meshing, and the rotating driving gear (46) drives the sliding support rod (42) through the driving rack (44) to make the arc support plate (43) gather toward the pile body (1) until the roller (49) is pressed against the pile body (1), thereby applying a force to the pile body (1); S3: After the pile erection roller (49) is pressed against the pile body (1), the traction rope (6) wound on the traction wheel (55) passes through the guide wheel (57), the lower correction wheel (59) and the upper correction wheel (58) in sequence and then goes back to the traction wheel (55) to form a loop, that is, the traction rope (6) is connected to form a circle, and the driving screw (53) drives the sliding seat (52) to move away from the pile body (1), so that the traction rope (6) is tightened and a correction force is applied to the pile body (1); S4: Then, the pile driver is used to drive the pile. The pile driver continuously hammers the end plate (12) so that the pile tip (2) is drilled into the ground for pile sinking. The pile driver gradually presses the pile body (1) into the soil through repeated hammering until the designed depth or the predetermined bearing capacity is reached. S5: When the pile body (1) tilts, according to the tilt of the pile body (1), the traction section (62) of the traction rope (6) on the tilted side is shortened and transferred toward the correction section (61), while the traction correction section (61) on the opposite side is shortened and transferred toward the traction section (62), until the lengths of the traction correction and correction sections (61) of all traction ropes (6) are restored to relatively equal lengths, thereby achieving the correction of the pile body (1); S6: When the pile body (1) deviates or tilts significantly and needs to be pulled out for re-sinking, the pile body (1) is first corrected, and then all the traction wheels (55) are driven to rotate synchronously, so that the traction section (62) of the traction rope (6) on the tilted side is shortened and transferred to the correction section (61), and the traction section (62) pulls the pile tip (2) so that the pile body (1) is gradually pulled out vertically upward.
Citation Information
Patent Citations
A device and construction method for preventing sinking pipe cast-in-place pile from tilting
CN109137904B
