Deviation rectifying device for open caisson

Abstract

The invention relates to the technical field of open caisson construction, in particular to an open caisson deviation rectifying device which comprises an annular base located outside an open caisson, a rotary moving mechanism and a jacking deviation rectifying part. The annular base comprises two first arc plates and four second arc plates, the four second arc plates are arranged at the two ends of the first arc plates respectively and rotationally connected with the first arc plates, and every two adjacent second arc plates are connected through an insertion structure; a sliding rail is arranged on the annular base, a mounting plate is arranged on a sliding block of the rotary moving mechanism, and the jacking deviation rectifying part is located on the mounting plate and comprises a hydraulic push cylinder used for jacking a shaft. The jacking deviation rectifying part can move on the annular base, and after the jacking deviation rectifying part reaches the highest point of the shaft, the jacking deviation rectifying part jacks downwards and is matched with an in-well deviating excavation method to rectify the deviation of the shaft, frequent disassembly and assembly are not needed, and the influence on the project progress is reduced; meanwhile, the annular base is composed of the first arc plate and the second arc plate, the occupied space is greatly reduced after the annular base is disassembled, and the annular base can be conveniently placed on a vehicle to be transported and transferred.

Description

Technical Field

[0001] The present invention relates to the technical field of open caisson construction, and particularly relates to an open caisson deviation rectification device. Background Art

[0002] Open caisson construction refers to a structure in the shape of a shaft made of reinforced concrete, which is used as the support for the foundation pit wall. A cutting edge is usually provided under the first section of the shaft. By mechanically and manually excavating soil in the caisson and using its own gravity to overcome the frictional resistance between the shaft wall and the soil layer, it sinks to the designed elevation, and finally forms an underground structure or foundation. During the sinking process, it is necessary to control the sinking speed and direction to ensure the verticality and stability of the open caisson. Therefore, open caisson construction is essentially a construction process in which a structure pre-cast on the ground is sunk into the ground to a certain depth and then becomes an underground structure.

[0003] Excavating soil in the caisson is a key step in the sinking of the shaft. When excavating soil in the caisson, due to many factors such as uneven soil quality, asymmetric excavation, uneven force at the cutting edge, and poor geology, the open caisson is prone to deviation settlement. Especially in soft soil areas, the probability of deviation settlement is greater. If this deviation is not corrected in time, it will cause difficulties in the subsequent sinking of the open caisson, affect the accuracy of the final position of the structure, have an adverse impact on the project quality and construction efficiency, and may also lead to casualties and property losses.

[0004] In the prior art, the method of partial excavation in the caisson combined with pressure deviation rectification is usually used for open caisson deviation rectification, that is, excavating soil on one side of the well, and applying pressure at the highest point above the corresponding shaft wall to press down the shaft, so as to rectify the deviation. Applying pressure at the highest point of the shaft wall usually has the methods of placing weights or top-pressing with a hydraulic push rod. However, the method of placing weights is difficult to control the force, and there are often over-pressing situations, which increases the difficulty of deviation rectification. When the hydraulic push rod structure top-presses, due to the need to overcome the reaction force, a base needs to be installed on the ground. Since the position of each deviation of the shaft is not exactly the same, the base of the hydraulic push rod structure needs to be continuously disassembled and installed from the ground. The deviation of the shaft during the open caisson construction process is relatively frequent as a whole, and the installation of the base and the ground requires driving fixed piles into the ground to a certain depth, and the disassembly and installation are troublesome, resulting in extremely time-consuming and laborious deviation rectification process and affecting the project progress.

[0005] Chinese Invention Patent CN119686362A discloses a deviation rectification device for a caisson construction, which is used to rectify the inclined shaft wall. The deviation rectification device includes a support frame, a connection module, a driving motor, a rope winding module, a lifting module, a gripper, a cable and a ground anchor. The support frame is fixed on the ground, the top of the support frame is fixedly connected with the connection module, the connection module is fixedly connected with the rope winding module, the connection module is slidably connected with the lifting module, the driving motor is fixedly connected with the connection module, the driving motor is fixedly connected with the rope winding module, the lifting module applies a downward pressure to the highest point, and the rope winding module pulls the gripper to apply a downward pulling force to both ends of the highest point to prevent the shaft wall from deforming due to stress concentration during deviation rectification. It is necessary to fix the support frame on the ground, and it is troublesome to disassemble and install when changing the position. Chinese Invention Patent CN110541427A discloses a deviation rectification device for a caisson shaft, including: a support column, a cylinder body, a piston part and a hydraulic device. The lower part of the support column is fixedly connected to the ground outside the caisson, and the upper part of the support column is connected with a deviation rectification frame. The deviation rectification frame is annular and faces the caisson. Through the setting of the deviation rectification frame, the continuous installation and disassembly of the hydraulic device and the like are avoided, but the deviation rectification frame blocks the caisson, affecting the hoisting of the shaft, and the circular deviation rectification frame has a large volume and is not easy to be placed on a vehicle for transportation, making the transfer inconvenient. Summary of the Invention

[0006] The present invention is to overcome the above-mentioned disadvantages existing in the prior art and provide a caisson deviation rectification device. The present invention installs the annular base on the ground through fixed piles. The jacking deviation rectification part can move on the annular base through the slide rail and the slider. After it reaches the highest point of the shaft, the protruding part of the shaft is pressed downward, and in cooperation with the method of partial excavation in the shaft, the shaft is rectified. The jacking deviation rectification part can move on the annular base to the high place of the shaft. At the same time, the annular base is composed of a first arc plate and a second arc plate. After being disassembled, the occupied space is greatly reduced; the effect of not requiring frequent disassembly and installation, reducing the impact on the project progress, and being convenient to be placed on a vehicle for transportation and convenient for transfer is achieved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a caisson deviation rectification device, including an annular base, a rotary moving mechanism and a jacking deviation rectification part located outside the caisson; the annular base includes two first arc plates and four second arc plates. The two first arc plates are arranged oppositely, and the four second arc plates are respectively arranged at both ends of the first arc plates and are rotatably connected with the first arc plates. The adjacent two second arc plates are connected through a plug-in structure; the annular base is installed on the ground through fixed piles; the first arc plate and the second arc plate are provided with slide rails in alignment. The rotary moving mechanism includes a slider slidably connected with the slide rail. An installation plate is provided on the slider, and the jacking deviation rectification part is located on the installation plate. The jacking deviation rectification part includes a hydraulic push cylinder for pressing the shaft.

[0008] Preferably, the first arc plate and the second arc plate are rotatably connected by a hinge, and the hinge is located inside the annular base, and the plugging structure is located outside the annular base.

[0009] Preferably, the plugging structure includes a fixing block at one end of the second arc plate. The fixing block is provided with a through hole along the tangent direction of one end of the rotating plate. The through holes in the two fixing blocks are aligned and provided with bolts passing through them.

[0010] Preferably, it further includes a lifting structure. The lifting structure includes a cross plate and two vertical plates. The lower ends of the vertical plates are provided with through holes. The through holes of the two vertical plates are respectively sleeved on both ends of the bolt. The cross plate is fixedly connected to the upper ends of the two vertical plates. A lifting ring is provided on the cross plate.

[0011] Preferably, the jacking and deviation rectifying part further includes a vertical plate, a rotating plate, a hydraulic jack and a support frame. The vertical plate is arranged on the outer side of the mounting plate. The hydraulic jack is rotatably connected to the inner side of the mounting plate. One end of the rotating plate is rotatably connected to the vertical plate, and the other end is rotatably connected to the output end of the hydraulic jack; the support frame is installed on the rotating plate, and the hydraulic push cylinder is vertically installed on the support frame.

[0012] Preferably, the push rod of the hydraulic push cylinder is arranged downward, and a pressing plate is arranged below the push rod.

[0013] Preferably, it further includes a measuring mechanism. The measuring mechanism includes an outstretched bracket arranged on the rotating plate. A sliding sleeve is arranged on the outstretched bracket. A sliding rod is slidably arranged in the sliding sleeve. A baffle is arranged at the upper end of the sliding rod, and a wheel frame is connected to the lower end. A rotating wheel is arranged below the wheel frame. A spring is sleeved on the sliding rod. The upper end of the spring abuts against the outstretched bracket, and the lower end abuts against the wheel frame; a laser emitter is arranged on the outstretched bracket, and a laser receiver corresponding to the laser emitter is arranged on the wheel frame.

[0014] Preferably, the outstretched bracket is connected to the rotating plate through a sliding part. The sliding part includes a support seat fixed on the rotating plate and a horizontal support rod fixed on the outstretched bracket. A linear bearing is horizontally arranged on the support seat. The horizontal support rod is slidably connected to the linear bearing. A stop block is arranged at one end of the horizontal support rod.

[0015] Preferably, the cross section of the slide rail is T-shaped, and L-shaped baffles are arranged on both sides of the slider to cooperate with the T-shaped slide rail.

[0016] Preferably, a circle of rack is arranged on the slide rail, and a reserved groove for accommodating the rack is arranged below the slider; a driving motor is further arranged in the reserved groove, and a driving gear is arranged at the output end of the driving motor. The driving gear meshes with the rack.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are as follows: (1) Install the annular base on the ground through fixed piles. The jacking and deviation-correcting part can move on the annular base through slide rails and sliders. After it reaches the highest point of the wellbore, press down the protruding part of the wellbore, and cooperate with the method of partial excavation in the well to correct the deviation of the wellbore. The jacking and deviation-correcting part can move on the annular base to the high part of the wellbore, without frequent disassembly and installation, reducing the impact on the project progress; at the same time, the annular base is composed of a first arc plate and a second arc plate. After being disassembled, the occupied space is greatly reduced, which is convenient to be placed on the vehicle for transportation and convenient for transfer.

[0018] (2) The first arc plate and the second arc plate are rotationally connected through a hinge, and the hinge is located inside the annular base. When the annular base is retracted, the first arc plate rotates to the inside of the second arc plate through the hinge on the inside, not only reducing the size in the horizontal direction, but also facilitating the retraction and deployment; since the inside is a caisson and the insertion structure is located outside the annular base, it is convenient for subsequent installation and reduces the danger.

[0019] (3) The insertion structure includes a fixed block at one end of the second arc plate. The fixed block is provided with a through hole along the tangent direction of one end of the rotating plate. The through holes in the two fixed blocks are aligned and provided with bolts; it is convenient for disassembly and installation, and only one installation and disassembly is required for the entire construction process, which takes a short time and has little impact on the construction progress.

[0020] (4) After the device is assembled, lift the device by hanging the cable on the lifting ring, and then transport it above the caisson and align it with the caisson. The operation workers can complete the measurement manually. The annular base is installed through fixed piles, and the installation and use are relatively simple, taking not much time and having little impact on the construction progress.

[0021] (5) The hydraulic push cylinder presses down the well wall, and at the same time cooperates with the partial excavation in the well, and can achieve a good deviation-correcting effect for caissons of a certain depth.

[0022] (6) The hydraulic jack rotates the rotating plate, so that the hydraulic push cylinder leaves directly above the wellbore, creating space for the placement of the next wellbore; after the soil in the well is excavated to the specified elevation of the wellbore sinking, measure the high point of the well wall, and the hydraulic jack rotates the rotating plate back, and the hydraulic push cylinder presses the well wall to correct the deviation.

[0023] (7) By moving the measuring mechanism around the annular base, the rotating wheel will drive the slide rod to move up and down due to the height of the well wall, causing the distance between the laser emitter and the laser receiver to change. Record the maximum and minimum values of the distance. Half of the difference between the two is the stroke for the jacking and deviation-correcting part to press the high part of the well wall; at the same time, according to the position of the starting point of the measuring mechanism, judge the position of the highest point, saving the use of the level and total station. The level and total station do not need to follow the entire construction process, greatly saving costs and manpower and improving the effect of the deviation-correcting measurement process.

[0024] After the shaft is offset, there will be a small displacement in the horizontal direction. The horizontal support rod can move axially along the linear bearing, driving the wheel frame and the rotating wheel under the outrigger to move in the horizontal direction, offsetting the displacement of the shaft in the horizontal direction, so that the rotating wheel can move smoothly on the shaft wall. Description of the Drawings

[0025] Figure 1 Schematic three-dimensional view of the present invention; Figure 2 is Figure 1 Enlarged view at the jacking deviation correction part and the measuring mechanism in; Figure 3 Schematic three-dimensional view of the jacking deviation correction part; Figure 4 Side view of the jacking deviation correction part; Figure 5 is Figure 4 Enlarged view at position A in; Figure 6 Side view of the measuring mechanism; Figure 7 Schematic three-dimensional view of the plug-in structure; Figure 8 Schematic three-dimensional view of the lifting structure; Figure 9 Schematic diagram of the change of the sliding part after the shaft is offset.

[0026] Description of the reference numerals: 1 - annular base, 11 - first arc plate, 12 - second arc plate, 13 - slide rail, 14 - rack, 15 - fixing pile; 2 - plug-in structure, 21 - fixing block, 22 - through hole, 23 - bolt; 3 - rotary moving mechanism, 31 - slider, 311 - reserved groove, 32 - L-shaped baffle, 33 - mounting plate, 34 - driving motor, 35 - driving gear; 4 - jacking deviation correction part, 41 - vertical plate, 42 - rotating plate, 43 - hydraulic jack, 44 - support frame, 45 - hydraulic push cylinder, 46 - pressing plate; 5 - lifting structure, 51 - vertical plate, 52 - horizontal plate, 53 - lifting ring, 54 - perforation; 6 - measuring mechanism, 61 - outrigger, 62 - sliding sleeve, 63 - sliding rod, 64 - baffle, 65 - spring, 66 - rotating wheel, 67 - wheel frame; 71 - laser emitter, 72 - laser receiver; 8 - sliding part, 81 - support, 82 - linear bearing, 83 - horizontal support rod, 84 - stop block. Detailed implementation manners

[0027] To enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Embodiment The following will further illustrate the present invention in conjunction with the attached Figures 1-9 For the present invention, a sunken shaft rectification device, as Figure 1 and Figure 2 shown, includes an annular base 1 located outside the sunken shaft, a rotary moving mechanism 3, and a jacking rectification part 4; the annular base 1 includes two first arc plates 11 and four second arc plates 12. The two first arc plates 11 are arranged oppositely. The four second arc plates 12 are respectively arranged at both ends of the first arc plates 11 and are rotatably connected to the first arc plates 11. The two adjacent second arc plates 12 are connected by a plug-in structure 2; the annular base 1 is installed on the ground through fixed piles 15; sliding rails 13 are provided on the first arc plates 11 and the second arc plates 12 in alignment. The rotary moving mechanism 3 includes a slider 31 slidably connected to the sliding rails 13. An installation plate 33 is provided on the slider 31. The jacking rectification part 4 is located on the installation plate 33. The jacking rectification part 4 includes a hydraulic push cylinder 45 for jacking and pressing the shaft wall.

[0029] The annular base 1 is installed on the ground through fixed piles 15. The jacking rectification part 4 can move on the annular base 1 through the sliding rails 13 and the slider 31. After it reaches the highest point of the shaft, the protruding part of the shaft is jacked and pressed downward. In cooperation with the method of partial excavation in the shaft, the shaft is rectified. The jacking rectification part 4 can move to the high position of the shaft on the annular base 1, without frequent disassembly and installation, reducing the impact on the project progress; at the same time, the annular base 1 is composed of the first arc plates 11 and the second arc plates 12. After being disassembled, the occupied space is greatly reduced, which is convenient for being placed on a vehicle for transportation and convenient for transfer.

[0030] It is set that the two first arc plates 11 and the four second arc plates 12 are spliced and assembled to form the annular base 1. With fewer parts, it is convenient for installation and disassembly. After the second arc plates 12 are rotated, they are folded with the first arc plates 11, which is convenient for transportation and placement, and is more convenient to operate on site. It is a more preferred choice.

[0031] As Figure 1 and Figure 7As shown, the first arc plate 11 and the second arc plate 12 are rotationally connected by a hinge, and the hinge is located inside the annular base 1. When the annular base 1 is retracted, the first arc plate 11 rotates to the inside of the second arc plate 12 through the hinge on the inside, which not only reduces the size in the horizontal direction but also facilitates retraction and deployment. Since the inside is a caisson, the plug-in structure 2 is located outside the annular base 1, which is convenient for subsequent installation and reduces risks. The plug-in structure 2 includes a fixed block 21 at one end of the second arc plate 12. The fixed block 21 is provided with a through hole 22 along the tangent direction of one end of the rotating plate 42. The through holes 22 in the two fixed blocks 21 are aligned and provided with bolts 23 inserted through them. It is convenient for disassembly and installation, and the entire construction process only requires one installation and disassembly, taking a short time and having little impact on the construction progress.

[0032] As Figure 1 and Figure 8 shown, the device further includes a lifting structure 5. The lifting structure 5 includes a cross plate 52 and two vertical plates 51. The lower ends of the vertical plates 51 are provided with through holes 54. The through holes 54 of the two vertical plates 51 are respectively sleeved on both ends of the bolt 23. The cross plate 52 is fixedly connected to the upper ends of the two vertical plates 51, and a lifting ring 53 is provided on the cross plate 52.

[0033] After the device is assembled, by hanging the cable on the lifting ring 53, the device is then lifted and transported above the caisson and aligned with the caisson. The operation workers can complete the measurement manually. Specifically: measure the diameter of the annular base 1 and the diameter of the caisson, calculate the difference value, and use tools such as a ruler to measure out this difference value towards the outside of the caisson and mark this point. A total of three points are taken. When hoisting the device, the annular base 1 lands on the three points and is installed through the fixed piles 15. The installation and use are relatively simple and not complicated, taking not much time and having little impact on the construction progress. After use, the device is hoisted away and disassembled.

[0034] As Figure 3 and Figure 4 shown, the jacking and deviation correction part 4 further includes a vertical plate 41, a rotating plate 42, a hydraulic jack 43, and a support frame 44. The vertical plate 41 is arranged on the outer side of the mounting plate 33, the hydraulic jack 43 is rotationally connected to the inner side of the mounting plate 33, one end of the rotating plate 42 is rotationally connected to the vertical plate 41, and the other end is rotationally connected to the output end of the hydraulic jack 43. The support frame 44 is installed on the rotating plate 42, and the hydraulic push cylinder 45 is vertically installed on the support frame 44.

[0035] The hydraulic push cylinder 45 presses downward against the shaft wall for deviation correction. The reaction force is finally transmitted to the annular base 1 through the support frame 44. At the same time, in cooperation with partial excavation in the well and common operations such as filling the area around the shaft with water, the friction can be reduced to facilitate the pressing of the hydraulic push cylinder 45, achieving a good deviation correction effect for a caisson of a certain depth. The hydraulic jack 43 rotates the rotating plate 42, causing the hydraulic push cylinder 45 to move away from directly above the shaft to create space for placing the next shaft. After the excavation in the well reaches the designated elevation for the shaft to sink, the high point of the shaft wall is measured, and the hydraulic jack 43 rotates the rotating plate 42 back, and the hydraulic push cylinder 45 presses against the shaft wall for deviation correction.

[0036] The push rod of the hydraulic push cylinder 45 is arranged downward, and a pressure plate 46 is provided below the push rod to increase the contact area with the shaft wall and reduce stress concentration.

[0037] As Figure 2 and Figure 6 shown, it further includes a measuring mechanism 6. The measuring mechanism 6 includes an outrigger 61 arranged on the rotating plate 42. A sliding sleeve 62 is provided on the outrigger 61. A sliding rod 63 is slidably arranged in the sliding sleeve 62. A baffle 64 is provided at the upper end of the sliding rod 63, and a wheel frame 67 is connected to the lower end. A rotating wheel 66 is provided below the wheel frame 67. A spring 65 is sleeved on the sliding rod 63. The upper end of the spring 65 abuts against the outrigger 61, and the lower end abuts against the wheel frame 67. A laser emitter 71 is provided on the outrigger 61, and a laser receiver 72 corresponding to the laser emitter 71 is provided on the wheel frame 67.

[0038] The wheel frame 67 drives the rotating wheel 66 to move on the shaft wall. When it moves to the high point of the shaft wall, the wheel frame 67 receives pressure, overcomes the elastic force of the spring 65, and pushes the sliding rod 63 upward along the sliding sleeve 62 in the vertical direction, reducing the distance between the laser emitter 71 and the laser receiver 72, and measuring the distance between the two. When the rotating wheel 66 moves to the low point of the shaft wall, the sliding rod 63 slides downward along the sliding sleeve 62 in the vertical direction, increasing the distance between the laser emitter 71 and the laser receiver 72, and measuring the distance between the two.

[0039] Therefore, when the measuring mechanism 6 moves around the annular base 1 driven by the rotary moving mechanism 3, the rotating wheel 66 will drive the sliding rod 63 to move up and down due to the height of the wellbore, causing the distance between the laser emitter 71 and the laser receiver 72 to change, and the change is recorded by a controller or the like. By the maximum and minimum values of the distance, the difference between the highest point and the lowest point of the wellbore can be known. Half of the difference between the maximum and minimum values is the stroke for the jacking and deviation correction part 4 to press against the higher part of the wellbore. At the same time, the measuring mechanism 6 rotates uniformly on the annular base 1. After the measuring mechanism 6 starts rotating from a starting point on the annular base 1, the position relative to the starting point can be judged according to the time when the highest point appears. After the measuring mechanism 6 rotates one circle, the jacking and deviation correction part 4 moves to this position for jacking and deviation correction operations. This saves the use of a level and a total station. The level and the total station do not need to follow the entire construction process, greatly saving costs and labor and improving the effect of the deviation correction measurement process.

[0040] The rotation process of the measuring mechanism 6 on the annular base 1 can be carried out during the gap time of hoisting and preparing the next wellbore, without occupying extra time and not affecting the overall construction progress. After the measurement is completed, jacking is carried out. Then, when the wellbore is placed directly above, the rotating plate 42 is rotated away from directly above the wellbore by the hydraulic jack 43 to create space.

[0041] As Figure 6 shown, the outrigger 61 is connected to the rotating plate 42 through the sliding part 8. The sliding part 8 includes a support 81 fixed on the rotating plate 42 and a horizontal support rod 83 fixed on the outrigger 61. A linear bearing 82 is horizontally provided on the support 81, and the horizontal support rod 83 is slidably connected to the linear bearing 82. A stop block 84 is provided at one end of the horizontal support rod 83.

[0042] After the wellbore is offset, as Figure 9 shown, a small displacement will occur in the horizontal direction. The horizontal support rod 83 can move axially along the linear bearing 82, driving the wheel frame 67 and the rotating wheel 66 under the outrigger 61 to move in the horizontal direction, offsetting the displacement of the wellbore in the horizontal direction, so that the rotating wheel 66 can move smoothly on the wellbore wall.

[0043] As Figure 5 shown, the cross-section of the slide rail 13 is T-shaped, and L-shaped baffles 32 are provided on both sides of the slider 31 to cooperate with the T-shaped slide rail 13. While guiding and limiting, it bears the reaction force of the hydraulic push cylinder 45.

[0044] As Figure 5 shown, a rack 14 is provided on the slide rail 13, and a reserved groove 311 for accommodating the rack 14 is provided below the slider 31; a driving motor 34 is further provided in the reserved groove 311, and a driving gear 35 is provided at the output end of the driving motor 34. The driving gear 35 meshes with the rack 14.

[0045] The driving motor 34 drives the driving gear 35 to rotate. With the cooperation of the rack 14, the slider 31 moves on the slide rail 13, realizing the rotation of each component on the annular base 1.

[0046] In the description of the present invention, the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for describing the present invention and does not require the present invention to be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. The "connected" and "coupled" in the present invention should be understood in a broad sense. For example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0047] The above are only the preferred embodiments of the present invention, and are not limitations on the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification and equivalent change made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A caisson correction device, characterized in that: The invention comprises an annular base (1) located outside the caisson, a rotating movement mechanism (3) and a jacking correction part (4); the annular base (1) comprises two first arc plates (11) and four second arc plates (12), the two first arc plates (11) are arranged opposite to each other, the four second arc plates (12) are arranged at both ends of the first arc plate (11) and are rotatably connected to the first arc plate (11), and two adjacent second arc plates (12) are connected via a plug-in structure (2); the annular base (1) is installed on the ground via a fixing pile (15); The first arc plate (11) and the second arc plate (12) are aligned with a slide rail (13), the rotary movement mechanism (3) comprises a slider (31) slidably connected to the slide rail (13), a mounting plate (33) is provided on the slider (31), the jacking correction part (4) is located on the mounting plate (33), and the jacking correction part (4) comprises a hydraulic push cylinder (45) for jacking the wellbore.

2. A caisson deviation correction device according to claim 1, characterized in that: The first arc plate (11) and the second arc plate (12) are rotatably connected via a hinge, and the hinge is located on the inner side of the annular base (1), and the plug-in structure (2) is located on the outer side of the annular base (1).

3. A caisson deviation correction device according to claim 2, characterized in that: The plug-in structure (2) comprises a fixing block (21) located at one end of the second arc plate (12), the fixing block (21) being provided with a through hole (22) along a tangent direction of one end of the rotating plate (42), the through holes (22) in the two fixing blocks (21) being aligned and having bolts (23) passing therethrough.

4. The caisson deviation correction device according to claim 3 is characterized in that: The lifting structure (5) further comprises a lifting structure (5), wherein the lifting structure (5) comprises a horizontal plate (52) and two vertical plates (51), wherein the lower ends of the vertical plates (51) are provided with through holes (54), and the through holes (54) of the two vertical plates (51) are respectively sleeved on the two ends of the bolts (23), and the horizontal plate (52) is fixedly connected to the upper ends of the two vertical plates (51), and a lifting ring (53) is provided on the horizontal plate (52).

5. The caisson deviation correction device according to claim 1, characterized in that: The jacking deviation correction part (4) further comprises a vertical plate (41), a rotating plate (42), a hydraulic jack (43) and a support frame (44); the vertical plate (41) is arranged on the outer side of the mounting plate (33); the hydraulic jack (43) is rotatably connected to the inner side of the mounting plate (33); one end of the rotating plate (42) is rotatably connected to the vertical plate (41) and the other end is rotatably connected to the output end of the hydraulic jack (43); The support frame (44) is mounted on the rotating plate (42), and the hydraulic push cylinder (45) is vertically mounted on the support frame (44).

6. The caisson deviation correction device according to claim 5, characterized in that: The push rod of the hydraulic push cylinder (45) is arranged downward, and a pressure plate (46) is arranged below the push rod.

7. The caisson deviation correction device according to claim 5, characterized in that: The measuring mechanism (6) further comprises an outrigger (61) arranged on a rotating plate (42), a sliding sleeve (62) being provided on the outrigger (61), a sliding rod (63) being slidably provided in the sliding sleeve (62), a baffle (64) being provided at the upper end of the sliding rod (63), a wheel frame (67) being connected at the lower end, a rotating wheel (66) being provided below the wheel frame (67), a spring (65) being sleeved on the sliding rod (63), the upper end of the spring (65) being against the outrigger (61), and the lower end being against the wheel frame (67); The outrigger (61) is provided with a laser transmitter (71), and the wheel frame (67) is provided with a laser receiver (72) corresponding to the laser transmitter (71).

8. The caisson deviation correction device according to claim 7, characterized in that: The outrigger (61) is connected to the rotating plate (42) via a sliding portion (8); the sliding portion (8) comprises a support (81) fixed on the rotating plate (42) and a horizontal support rod (83) fixed on the outrigger (61); a linear bearing (82) is horizontally provided on the support (81); the horizontal support rod (83) is slidably connected to the linear bearing (82); and a stopper (84) is provided at one end of the horizontal support rod (83).

9. The caisson deviation correction device according to claim 1, characterized in that: The cross section of the slide rail (13) is T-shaped, and L-shaped baffles (32) matching the T-shaped slide rail (13) are provided on both sides of the slide block (31).

10. The caisson deviation correction device according to claim 1, characterized in that: A circle of racks (14) is provided on the slide rail (13), and a reserved groove (311) for accommodating the racks (14) is provided below the slide block (31); A driving motor (34) is also provided in the reserved groove (311), and a driving gear (35) is provided at the output end of the driving motor (34), and the driving gear (35) is meshed with the rack (14).

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