Cast-in-place pile head breaking equipment and method for narrow space

Abstract

The invention relates to the technical field of cast-in-place pile construction, and particularly discloses cast-in-place pile head breaking equipment and method for a narrow space. The cast-in-place pile head breaking equipment comprises a support assembly, a first motor is arranged in the middle of the upper surface of the support assembly, a breaking assembly is arranged on the inner wall of the support assembly, and a second motor is arranged in the middle of the upper surface of the breaking assembly; the breaking assembly comprises a storage frame, the equipment can be adjusted through the support assembly according to the terrain and the construction environment so that the equipment can work in the narrow terrain, steel bars can be supported through the breaking assembly during cutting, the situation that the steel bars are bent due to impact force generated during steel bar cutting is avoided, and vibration is reduced; and meanwhile, the detection mechanism is arranged to detect the flatness of steel bar cutting in real time, a prompt is given out when shaking or inclination occurs during cutting, and adjustment and maintenance can be carried out in time conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of bored pile construction, and in particular to a bored pile head breaking device and method for use in a narrow space. Background Art

[0002] In construction projects, bored cast-in-place piles are widely used in foundation projects such as bridges and high-rise buildings because of their reliable quality, simple construction process, and strong adaptability to the strata. However, during the construction of bored cast-in-place piles, in order to ensure the strength of the pile foundation concrete, the top elevation of the bored pile usually needs to be 0.5 to 1.0 m higher than the designed pile top elevation. This part of the pile head that is higher than the designed elevation of the pile top needs to be broken in subsequent processes for further construction (such as pouring the pedestal, laying the cushion layer, etc.). In recent years, with the continuous development of mechanized construction technology, some mechanized breaking equipment has gradually been used in the breaking of the pile heads of bored piles. However, most of the existing mechanized breaking equipment is bulky and not suitable for working in a small space. It is difficult to operate these devices in a small space.

[0003] The existing technology still has the following problems:

[0004] 1. The existing equipment for breaking the pile heads of bored piles is of fixed size and cannot be adjusted according to the specific construction environment and conditions. The difficulty increases when working in a small space. Due to the poor adaptability of the equipment, it may be necessary to make multiple adjustments or replace the equipment to complete the breaking work, which increases the time cost. In addition, the equipment is difficult to transport quickly, affecting the continuity and progress of the construction.

[0005] 2. The existing bored pile head breaking equipment lacks proper support structure to protect bored piles. The impact force generated when cutting steel bars causes the steel bars to bend and vibrate. The bending or deformation of the steel bars may affect the bonding strength between the steel bars and the concrete of the bored piles, thereby reducing the bearing capacity of the piles. At the same time, the deformed steel bars may also be difficult to effectively connect with the superstructure. In addition, due to long-term use and terrain reasons, the cutter and steel bars are tilted during cutting, resulting in an uneven cutting surface, and defects such as burrs and cracks may occur. This not only affects the appearance quality of the pile head, but also may weaken the bearing capacity of the steel bars. If the steel bars are found to be uneven, they need to be repaired, and more time and effort are required to ensure the flatness of the cutting surface and the integrity of the steel bars, thereby further reducing construction efficiency. Summary of the invention

[0006] In order to overcome the problem that the size of the bored pile head breaking equipment is fixed and cannot be adjusted according to the specific construction environment and conditions, the difficulty increases when working in a narrow space. The bored pile head breaking equipment lacks a proper supporting structure to protect the bored pile. The impact force generated when cutting the steel bar causes the steel bar to bend and vibrate. The bending or deformation of the steel bar may affect its adhesion with the concrete of the bored pile itself, thereby reducing the bearing capacity of the pile. At the same time, the deformed steel bar may also be difficult to effectively connect with the superstructure. In addition, under long-term use and due to terrain reasons, the tool and the steel bar are tilted during cutting, resulting in an uneven cutting surface, and defects such as burrs and cracks may occur, which not only affects the appearance quality of the pile head, but also may weaken the bearing capacity of the steel bar. The purpose of the present invention is to provide a bored pile head breaking equipment and method for a narrow space to solve the above-mentioned shortcomings.

[0007] The present application provides a pile head breaking device for cast-in-place piles in a narrow space, comprising a bracket assembly, a first motor is arranged in the middle part of the upper surface of the bracket assembly, a breaking assembly is arranged on the inner wall of the bracket assembly, a second motor is arranged in the middle part of the upper surface of the breaking assembly, the breaking assembly comprises a storage rack, the inner cavities on both sides of the storage rack are slidably connected with first connecting strips, the first connecting strips are symmetrically distributed about the middle part of the storage rack, the first connecting strips are fixedly connected to telescopic legs, a rotating disk is arranged below the storage rack, a rotating rod is rotatably connected to the inner cavity of the storage rack, the rotating disk and the rotating rod are fixedly connected, a comprehensive detection mechanism is arranged on the outer surface of the storage rack, a connecting leg is fixedly installed on the lower surface of the rotating disk, a cutting mechanism is fixedly connected to the bottom end of the connecting leg, a supporting mechanism is arranged at the bottom end of the rotating rod, a detection groove is opened on the outer surface of the rotating disk, the second motor is located in the middle part of the storage rack, and the output end of the second motor is sleeved with the rotating rod.

[0008] Furthermore, the comprehensive detection mechanism includes a reset block, which is slidably connected to the storage rack. A balance detection mechanism is arranged below the reset block, a shake detection mechanism is arranged at the bottom of the storage rack, and a horizontal detection mechanism is arranged in the middle part of the shake detection mechanism.

[0009] Furthermore, the balance detection mechanism includes a balance frame, a balance groove is opened on the upper surface of the balance frame, a roller is provided in the inner cavity of the balance groove, a balance block is provided on the outer surface of the roller, the roller and the balance groove are slidably connected, the balance block and the roller are rotatably connected, a pointer is fixedly installed on the outer surface of the balance block, the balance frame and the storage rack are fixedly connected, and the reset block is located directly above the balance block.

[0010] Furthermore, the shaking detection mechanism includes a fixed ring, a sliding groove is provided on the outer surface of the fixed ring, a second connecting block is fixedly installed on the outer surface of the fixed ring, a first button is provided on the outer surface of the second connecting block, a speaker is fixedly installed on the outer surface of the second connecting block, the first button and the speaker are electrically connected, and pressing the first button controls the speaker to sound an alarm, the inner cavity of the sliding groove is movably connected with a first sliding rod, the outer surface of the first sliding rod is slidably connected with a connecting ring, the connecting ring and the inner cavity of the fixed ring are slidably connected, the outer surface of the first sliding rod is sleeved with a second spring, and the fixed ring and the storage rack are fixedly connected.

[0011] Furthermore, the horizontal detection mechanism includes a connecting seat, the inner cavity of the connecting seat is slidably connected to the sliding seat, the inner cavity of the sliding seat is rotatably connected to the pressure ring, the bottom end of the sliding seat is sleeved with a third spring, the bottom end of the sliding seat and the bottom wall of the connecting seat are spaced apart, the bottom end of the third spring is fixedly connected to the inner wall of the connecting seat, a horizontal seat is tightly fitted on the side of the pressure ring away from the sliding seat, a connecting rod is fixedly connected to the inner cavity of the horizontal seat, the connecting rod and the connecting seat are rotatably connected, a second connecting strip is fixedly installed on the side of the horizontal seat away from the pressure ring, a floating rod is fixedly installed on the middle part of the second connecting strip, balancing balls are movably connected to both ends of the second connecting strip, a pressure block is fixedly installed on the outer surface of the connecting rod, and the outer surface of the connecting seat is slidably connected to An adjusting block is connected, a second button is provided on the outer surface of the adjusting block, a second threaded rod is rotatably connected to the inner cavity of the connecting seat, the adjusting block and the second threaded rod are threadedly connected, and the thread directions at both ends of the second threaded rod are opposite, an alarm is provided on the outer surface of the connecting seat, the second button and the alarm are electrically connected, and pressing the second button controls the alarm to sound a warning, the horizontal seat is symmetrically distributed about the pressure ring, the first sliding rod and the connecting seat are fixedly connected, the second spring is located between the connecting seat and the connecting ring, the connecting seat and the bottom end of the storage rack are slidably connected, the balancing ball and the rotating disk are fitted, the floating rod is located in the middle part between the rotating rods, and the floating rod does not contact the inner wall of the rotating disk, and the rotating rod and the supporting frame are fixedly connected.

[0012] Furthermore, the cutting mechanism includes a cutting ring, a fixing frame is fixedly installed on the bottom end of the cutting ring, there are two fixing frames, a cylinder is fixedly installed on the bottom end of the fixing frame, a piston rod is slidably connected to the inner cavity of the cylinder, a third telescopic block is slidably connected to the inner cavity of the fixing frame, the piston rod and the third telescopic block are fixedly connected, the inner cavity of the third telescopic block is provided with a cutting wheel, and the cutting ring and the connecting leg are fixedly connected.

[0013] Furthermore, the supporting mechanism includes a supporting frame, a socket is provided in the middle part of the upper surface of the supporting frame, the inner cavity of the supporting frame is rotatably connected to the driving disk, the outer surface of the driving disk is provided with a driving groove, the inner cavity of the driving groove is slidably connected to the second sliding rod, the bottom end of the second sliding rod is fixedly connected to the supporting block, the inner cavity of the driving disk is fixedly installed with a fixing cylinder, the inner cavity of the fixing cylinder is slidably connected to an elastic rod, the outer surface of the elastic rod is sleeved with a fourth spring, the top end of the elastic rod is fixedly installed with a limiting rod, the upper surface of the limiting rod is fixedly installed with an insertion rod, the fourth spring is located between the inner wall of the fixing cylinder and the limiting rod, the insertion rod is engaged with the socket, the fixed frame and the support block are located in a straight line, and the support block is slidably connected to the bottom end of the supporting frame.

[0014] Furthermore, the bracket assembly includes a connecting frame, both ends of the connecting frame are slidably connected with storage legs, the inner cavity of the storage leg is slidably connected with the telescopic leg, the inner wall of the storage leg is provided with a hydraulic cylinder, the inner cavity of the hydraulic cylinder is slidably connected with the hydraulic cylinder, the bottom end of the telescopic leg is fixedly installed with a moving mechanism, both ends of the connecting frame are slidably connected with the telescopic mechanism, the bottom end of the connecting frame is rotatably connected with a gear, both ends of the gear are provided with racks, the rack and the connecting frame are slidably connected, the rack and the storage leg are fixedly connected, and the gear and the output end of the first motor are socketed.

[0015] Furthermore, the moving mechanism includes a base, the base and the telescopic leg are fixedly connected, the inner cavity of the base is rotatably connected with a first threaded rod, the inner wall of the base is slidably connected with a slider, the slider and the first threaded rod are threadedly connected, and the threads at both ends of the first threaded rod are in opposite directions, the bottom end of the slider is rotatably connected with a pressure ball, the inner cavity of the base is slidably connected with a first telescopic block, the inner wall of the bottom end of the first telescopic block is rotatably connected with a rolling rod, the two ends of the first telescopic block are fixedly connected with a first spring, the top of the first spring and the bottom wall of the top end of the base are fixedly connected, the telescopic mechanism includes a second telescopic block, the outer surface of the second telescopic block is fixedly installed with a first connecting block, the first connecting block and the connecting frame are slidably connected, the two ends of the second telescopic block are fixedly installed, the outer surfaces of the storage legs and are both provided with protrusions, the inner cavity of the protrusion is provided with a fifth spring, the protrusion and the fifth spring are elastically connected, and the connecting frame and the inner wall of the second telescopic block are both provided with grooves.

[0016] A method for breaking the head of a cast-in-place pile in a narrow space, performed by the above-mentioned device, comprises the following steps:

[0017] S1. After the concrete pouring of the bored pile is completed, concrete is injected into the pre-drilled hole, the above device is transferred to the top of the bored pile, the pile top clearance depth is calculated, and a uniform mark is made with lines;

[0018] S2. Adjust the size of the equipment as a whole according to the terrain of the site, that is, make adaptive adjustments to the equipment through the bracket components to ensure that the site can be used;

[0019] S3. Cut the excess steel bars by removing the components, clear the top, and then construct the concrete cushion layer and carry out subsequent waterproofing work to ensure the stability of the cast-in-place piles and the firmness of the overall structure.

[0020] The technical solution provided by this application has at least the following technical effects or advantages:

[0021] 1. The use of the bracket assembly effectively solves the problem that the existing bored pile head breaking equipment is fixed in size and cannot be adjusted according to the specific construction environment and conditions. The difficulty increases when working in a small space. Due to the poor adaptability of the equipment, multiple adjustments or replacements may be required to complete the breaking work, thereby increasing the time cost, and the equipment is difficult to transport quickly, affecting the continuity and progress of the construction. The present invention can adjust the equipment according to the terrain and construction environment through the bracket assembly, so that the equipment can work in a small terrain, and the equipment can be quickly transported. At the same time, it can provide stable support during work to prevent the equipment from shifting in position during cutting.

[0022] 2. The use of the breaking component effectively solves the problem that the existing bored pile head breaking equipment lacks a proper supporting structure to protect the bored pile. The impact force generated when cutting the steel bar causes the steel bar to bend and vibrate. The bending or deformation of the steel bar may affect its bonding with the concrete of the bored pile itself, thereby reducing the bearing capacity of the pile. At the same time, the deformed steel bar may also be difficult to effectively connect with the superstructure. In addition, under long-term use and due to terrain reasons, the cutter and the steel bar are tilted during cutting, resulting in an uneven cutting surface, and defects such as burrs and cracks may occur. This not only affects the appearance quality of the pile head, but also may weaken the bearing capacity of the steel bar. If the steel bar is found to be uneven, it needs to be repaired, and more time and effort are needed to ensure the flatness of the cutting surface. The invention can support the steel bars during cutting through the breaking components, and can adjust the support according to the specifications of the steel bars, so as to avoid the bending of the steel bars and reduce the vibration caused by the impact force generated during the cutting of the steel bars, reduce the influence of the bending or deformation of the steel bars on the pile heads, and avoid cracks in the cast-in-place piles when the steel bars are broken, so as to improve the bearing capacity of the piles. At the same time, the invention has a detection mechanism to detect the flatness of the steel bar cutting in real time, and issue a prompt when the cutting occurs. It is convenient to make adjustments and maintenance in time, ensure that the cutting surface of the steel bar after breaking is flat, ensure the supporting effect of the steel bars and the cast-in-place piles, and reduce the time for subsequent rework and repair due to uneven cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present application;

[0024] Figure 2This is a schematic diagram of the structure of the bracket assembly in the embodiment of the present application;

[0025] Figure 3 Schematic diagram of the cross-sectional structure of the base in the embodiment of the present application;

[0026] Figure 4 This is a schematic cross-sectional view of the connecting frame structure in an embodiment of the present application;

[0027] Figure 5 For the embodiment of this application Figure 4 A schematic diagram of the structure enlargement at the center A;

[0028] Figure 6 This is a schematic diagram of the structure of the breaking component in the embodiment of the present application;

[0029] Figure 7 This is a schematic diagram of the storage rack structure in an embodiment of the present application;

[0030] Figure 8 This is a schematic diagram of the structure of the balance detection mechanism in the embodiment of the present application;

[0031] Fig. 9 Schematic diagram of the structure of the shaking detection mechanism in the embodiment of the present application;

[0032] Fig.10 This is a schematic diagram of the structure of a balancing ball in an embodiment of the present application;

[0033] Fig.11 For the embodiment of this application Fig.10 A schematic diagram of the structure enlarged at B in the middle;

[0034] Fig.12 This is a schematic cross-sectional view of the connecting seat structure in the embodiment of the present application;

[0035] Fig.13 This is a schematic diagram of the cutting mechanism structure in an embodiment of the present application;

[0036] Fig.14 is a schematic cross-sectional view of a support frame structure in an embodiment of the present application;

[0037] Fig.15 Schematic diagram of the cross-section of the limiting rod structure in the embodiment of the present application.

[0038] In the figure: 1, bracket assembly; 11, connecting frame; 12, storage leg; 13, telescopic leg; 14, moving mechanism; 141, base; 142, first threaded rod; 143, slider; 144, pressure ball; 145, first telescopic block; 146, rolling rod; 147, first spring; 15, telescopic mechanism; 151, second telescopic block; 152, first connecting block; 153, plug rod; 154, protrusion; 155, groove; 16, gear; 17, rack; 2, first motor; 3, breaking group Components; 31, storage rack; 32, first connecting strip; 33, rotating disk; 34, rotating rod; 35, comprehensive detection mechanism; 351, reset block; 352, balance detection mechanism; 3521, balance rack; 3522, balance slot; 3523, roller; 3524, balance block; 3525, pointer; 353, shaking detection mechanism; 3531, fixing ring; 3532, slide slot; 3533, second connecting block; 3534, first button; 3535, speaker; 3536, first slide bar; 3537, connecting ring; 3538, second spring; 354, horizontal detection mechanism; 3541, connecting seat; 3542, sliding seat; 3543, pressure ring; 3544, third spring; 3545, horizontal seat; 3546, connecting rod; 3547, second connecting strip; 3548, floating rod; 3549, balancing ball; 35410, pressure block; 35411, adjustment block; 35412, second button; 35413, second threaded rod; 35414, alarm; 36, connecting Leg; 37, cutting mechanism; 371, cutting ring; 372, fixing frame; 373, cylinder; 374, piston rod; 375, third telescopic block; 376, cutting wheel; 38, supporting mechanism; 381, supporting frame; 382, ​​jack; 383, driving disk; 384, driving slot; 385, second sliding rod; 386, supporting block; 387, fixing cylinder; 388, elastic rod; 389, fourth spring; 3810, limiting rod; 3811, insert rod; 39, detection slot; 4, second motor. DETAILED DESCRIPTION

[0039] As for the inability to adjust according to specific construction environments and conditions, the present invention can adjust the equipment according to the terrain and construction environment through the bracket assembly, so that the equipment can work in narrow terrain; as for the bored pile head breaking equipment lacks an appropriate supporting structure to protect the bored pile, the present invention can support the steel bars during cutting through the breaking assembly, so as to avoid the bending of the steel bars caused by the impact force generated when the steel bars are cut and reduce the vibration, thereby reducing the influence of the bending or deformation of the steel bars on the bored pile head and avoiding cracks in the bored pile when the steel bars are broken.

[0040] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] See also Figure 1 As shown, a bored pile head breaking device for a narrow space includes a bracket assembly 1, a first motor 2 is arranged in the middle part of the upper surface of the bracket assembly 1, a breaking assembly 3 is arranged on the inner wall of the bracket assembly 1, and a second motor 4 is arranged in the middle part of the upper surface of the breaking assembly 3. The first motor 2 drives the bracket assembly 1 to adjust the overall specifications of the equipment so that the equipment can be used in a narrow terrain. The second motor 4 enables the breaking assembly 3 to cut the steel bars and support the steel bars during cutting, and can be adjusted according to the specifications of the steel bars. In addition, the flatness of the steel bars can be guaranteed during cutting, so that the bored pile head remains intact after breaking.

[0042] See also Figure 2 and Figure 4 As shown, the bracket assembly 1 includes a connecting frame 11, and the two ends of the connecting frame 11 are slidably connected with the storage legs 12, and the inner cavity of the storage legs 12 is slidably connected with the telescopic legs 13, the inner wall of the storage legs 12 is provided with a hydraulic cylinder, and the inner cavity of the hydraulic cylinder is slidably connected with the hydraulic cylinder. The bottom end of the telescopic leg 13 is fixedly installed with a moving mechanism 14, and the two ends of the connecting frame 11 are slidably connected with the telescopic mechanism 15. The bottom end of the connecting frame 11 is rotatably connected with a gear 16, and the two ends of the gear 16 are provided with a rack 17, the rack 17 is slidably connected to the connecting frame 11, and the rack 17 is fixedly connected to the storage legs 12, and the gear 16 is sleeved with the output end of the first motor 2, and the storage legs 12 are connected to the connecting frame 1 1 is retracted and retracted in the inner cavity of the storage leg 12, and the telescopic leg 13 is retracted and retracted in the inner cavity of the storage leg 12, so that the entire specification of the equipment changes. The moving mechanism 14 is used to support and transport the equipment. The operation of the first motor 2 drives the gear 16 to rotate, and the rotation of the gear 16 drives the rack 17 to slide on the connecting frame 11. The movement of the rack 17 drives the storage leg 12 to move on the connecting frame 11, thereby changing the overall width of the bracket assembly 1. The hydraulic cylinder in the inner cavity of the storage leg 12 works to drive the hydraulic rod to move, and the hydraulic rod drives the telescopic leg 13 to move in the inner cavity of the storage leg 12 to change the height of the equipment, thereby adjusting the equipment to match the site, so that the equipment can work in a small space.

[0043] See also Figure 3 , Figure 4 and Figure 5As shown, the moving mechanism 14 includes a base 141, the base 141 and the telescopic leg 13 are fixedly connected, the inner cavity of the base 141 is rotatably connected to the first threaded rod 142, the inner wall of the base 141 is slidably connected to the slider 143, the slider 143 and the first threaded rod 142 are connected by threads, and the threads at both ends of the first threaded rod 142 are in opposite directions, the bottom end of the slider 143 is rotatably connected to the pressure ball 144, the inner cavity of the base 141 is slidably connected to the first telescopic block 145, the inner wall of the bottom end of the first telescopic block 145 is rotatably connected to the rolling rod 146, the two ends of the first telescopic block 145 are fixedly connected to the first spring 147, the top of the first spring 147 and the base 141 The top and bottom walls are fixedly connected, the telescopic mechanism 15 includes a second telescopic block 151, a first connecting block 152 is fixedly installed on the outer surface of the second telescopic block 151, the first connecting block 152 is slidably connected to the connecting frame 11, 153 is fixedly installed at both ends of the second telescopic block 151, the outer surfaces of the storage legs 12 and 153 are both provided with protrusions 154, the inner cavity of the protrusion 154 is provided with a fifth spring, the protrusion 154 and the fifth spring are elastically connected, the inner walls of the connecting frame 11 and the second telescopic block 151 are both provided with grooves 155, when the equipment needs to be transported, the slider 143 can be slid on the inner wall of the base 141 by rotating the first threaded rod 142, at this time the pressure ball 144 The first telescopic block 145 is squeezed to make it slide on the inner wall of the base 141. At this time, the rolling rod 146 is in contact with the ground. At this time, the equipment can roll on the ground for easy transportation. During the demolition operation, the first threaded rod 142 is rotated to store the first telescopic block 145. Under the gravity and the elastic force of the first spring 147, the rolling rod 146 is stored in the inner cavity of the base 141. At this time, the base 141 is in contact with the ground to ensure the stability of the equipment during the demolition operation. The telescopic mechanism 15 is used as an auxiliary bracket for storing the leg 12 during telescoping. When the storing leg 12 is stored, the first connecting block 152 can be stored in the inner cavity of the connecting frame 11. At this time, the second telescopic block 151 and the connecting frame 11 are in contact with each other. The ends are fitted together, and when the storage leg 12 is unfolded, the rack 17 moves to drive the storage leg 12 to move. The storage leg 12 moves and contacts the second telescopic block 151, and during the contact process, the protrusion 154 on the storage leg 12 and the groove 155 on the second telescopic block 151 are engaged, and at the same time, the protrusion 154 on 153 and the groove 155 on the connecting frame 11 are disengaged, thereby ensuring the stability of the storage leg 12 when unfolded. When the storage leg 12 is stored, it drives the second telescopic block 151 to be stored. At this time, the protrusion 154 on 153 and the groove 155 on the connecting frame 11 are engaged again, and at the same time, the protrusion 154 on the storage leg 12 and the groove 155 on the second telescopic block 151 are disengaged.

[0044] See also Figure 6As shown, the breaking component 3 includes a storage rack 31, and the inner cavities on both sides of the storage rack 31 are slidably connected with first connecting strips 32, and the first connecting strips 32 are symmetrically distributed about the middle part of the storage rack 31. The first connecting strips 32 are fixedly connected to the telescopic legs 13, and a rotating disk 33 is arranged below the storage rack 31. The inner cavity of the storage rack 31 is rotatably connected with a rotating rod 34, and the rotating disk 33 and the rotating rod 34 are fixedly connected. A comprehensive detection mechanism 35 is arranged on the outer surface of the storage rack 31, and a connecting leg 36 is fixedly installed on the lower surface of the rotating disk 33. The bottom end of the connecting leg 36 is fixedly connected with a cutting mechanism 37, and a supporting mechanism 38 is arranged at the bottom end of the rotating rod 34. A detection groove 39 is opened on the outer surface of the rotating disk 33, and a second electric The machine 4 is located in the middle part of the storage rack 31, the output end of the second motor 4 is sleeved with the rotating rod 34, the expansion of the storage leg 12 drives the first connecting strip 32 to expand in the inner cavity of the storage rack 31, and the overall stability of the breaking component 3 is maintained. The operation of the second motor 4 drives the rotating rod 34 to rotate, the rotation of the rotating rod 34 drives the rotating disk 33 to rotate, the rotation of the rotating disk 33 drives the connecting leg 36 to rotate, the rotation of the connecting leg 36 drives the cutting mechanism 37 to rotate, the rotation of the rotating rod 34 drives the supporting mechanism 38 to rotate at the same time, the cutting mechanism 37 is used to cut off the excess steel bars at the pile head of the cast-in-place pile, and the supporting mechanism 38 is used to support the steel bars during cutting to prevent the steel bars from being deformed during cutting and to avoid damage to the cast-in-place pile.

[0045] See also Figure 6 , Figure 7 and Figure 8As shown, the comprehensive detection mechanism 35 includes a reset block 351, the reset block 351 is slidably connected to the storage rack 31, a balance detection mechanism 352 is arranged below the reset block 351, a shaking detection mechanism 353 is arranged at the bottom of the storage rack 31, and a horizontal detection mechanism 354 is arranged in the middle of the shaking detection mechanism 353. The reset block 351 is used to reset the balance detection mechanism 352, the shaking detection mechanism 353 is used to detect whether the equipment shakes during cutting, and the horizontal detection mechanism 354 is used to detect whether the cutting is horizontal. The balance detection mechanism 352 includes a balance frame 3521, and a balance groove 3522 is provided on the upper surface of the balance frame 3521. The inner cavity of the balance groove 3522 is provided with a roller 3523, and the outer surface of the roller 3523 is provided with a balance block 3524. The roller 3523 and the balance groove 3522 are slidably connected, and the balance block 3524 and the roller 3523 rotate Dynamic connection, a pointer 3525 is fixedly installed on the outer surface of the balancing block 3524, the balancing frame 3521 and the storage frame 31 are fixedly connected, and the reset block 351 is located directly above the balancing block 3524. When the equipment is horizontal, the balancing frame 3521 remains horizontal. At this time, the balancing block 3524 is located in the middle part of the balancing frame 3521, that is, the pointer 3525 points to the middle part of the inner cavity of the balancing groove 3522. When the equipment is tilted, the roller 3523 moves in the inner cavity of the balancing groove 3522, and the telescopic leg 13 is telescoped in the inner cavity of the storage leg 12 through the work of the hydraulic cylinder, so that the whole equipment remains vertical. At this time, the pointer 3525 is vertically downward, that is, the steel bar can be cut horizontally at this time, and the balancing block 3524 is squeezed by sliding the reset block 351 to reset the balancing block 3524. A configuration block can be installed at the bottom of the balancing block 3524 to ensure the accuracy of the equipment inclination detection.

[0046] See also Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, the shaking detection mechanism 353 includes a fixing ring 3531, a sliding groove 3532 is provided on the outer surface of the fixing ring 3531, a second connecting block 3533 is fixedly installed on the outer surface of the fixing ring 3531, a first button 3534 is provided on the outer surface of the second connecting block 3533, a speaker 3535 is fixedly installed on the outer surface of the second connecting block 3533, the first button 3534 and the speaker 3535 are electrically connected, and pressing the first button 3534 controls the speaker 3535 to sound an alarm, the inner cavity of the sliding groove 3532 is movably connected to the first sliding rod 3536, the outer surface of the first sliding rod 3536 is slidably connected to the connecting ring 3537, the connecting ring 3537 is slidably connected to the inner cavity of the fixing ring 3531, and the outer surface of the first sliding rod 3536 The second spring 3538 is sleeved on the surface, the fixing ring 3531 is fixedly connected to the storage rack 31, the horizontal detection mechanism 354 includes a connecting seat 3541, the inner cavity of the connecting seat 3541 is slidably connected to the sliding seat 3542, the inner cavity of the sliding seat 3542 is rotatably connected to the pressure ring 3543, the bottom end of the sliding seat 3542 is sleeved with a third spring 3544, the bottom end of the sliding seat 3542 and the bottom wall of the connecting seat 3541 are spaced apart, the bottom end of the third spring 3544 and the inner wall of the connecting seat 3541 are fixedly connected, the side of the pressure ring 3543 away from the sliding seat 3542 is tightly fitted with a horizontal seat 3545, the inner cavity of the horizontal seat 3545 is fixedly connected to a connecting rod 3546, the connecting rod 3546 and the connecting seat 3541 are rotatably connected, and the horizontal seat 3545 is far away from the bottom wall of the connecting seat 3541. A second connecting strip 3547 is fixedly installed on one side away from the pressure ring 3543, a floating rod 3548 is fixedly installed on the middle part of the second connecting strip 3547, and balancing balls 3549 are movably connected to both ends of the second connecting strip 3547. A pressure block 35410 is fixedly installed on the outer surface of the connecting rod 3546, an adjustment block 35411 is slidably connected to the outer surface of the connecting seat 3541, and a second button 35412 is provided on the outer surface of the adjustment block 35411. A second threaded rod 35413 is rotatably connected to the inner cavity of the connecting seat 3541, and the adjustment block 35411 and the second threaded rod 35413 are connected by threads, and the threads at both ends of the second threaded rod 35413 are in opposite directions. An alarm 3541 is provided on the outer surface of the connecting seat 3541 4. The second button 35412 is electrically connected to the alarm 35414, and the pressing of the second button 35412 controls the alarm 35414 to sound an alarm. The horizontal seat 3545 is symmetrically distributed about the pressure ring 3543. The first sliding rod 3536 is fixedly connected to the connecting seat 3541. The second spring 3538 is located between the connecting seat 3541 and the connecting ring 3537. The connecting seat 3541 is slidably connected to the bottom end of the storage rack 31. The balancing ball 3549 fits the rotating disk 33. The floating rod 3548 is located in the middle of the rotating rods 34, and the floating rod 3548 does not contact the inner wall of the rotating disk 33. The rotating rod 34 is fixedly connected to the support frame 381. When the rotating disk 33 tilts, the comprehensive detection mechanism 35 and the rotating disk 33 are squeezed.At this time, the rotating disk 33 squeezes the balancing ball 3549, thereby driving the second connecting strip 3547 to tilt. The tilting of the second connecting strip 3547 drives the connecting rod 3546 to rotate on the connecting seat 3541. The rotation of the connecting rod 3546 drives the horizontal seat 3545 to rotate. The rotation of the horizontal seat 3545 drives the horizontal seat 3545 to squeeze the pressure ring 3543. At this time, the third spring 3544 is compressed and the sliding seat 3542 slides in the inner cavity of the connecting seat 3541. When there is no tilting squeezing force of the rotating disk 33, the elastic force of the third spring 3544 The second connecting bar 3547 is kept horizontal, that is, the second connecting bar 3547 is horizontal relative to the rotating disk 33. At the same time, the rotation of the connecting rod 3546 drives the pressure block 35410 to rotate, and the rotation of the pressure block 35410 drives the pressure block 35410 to squeeze the second button 35412. At this time, the pressing of the second button 35412 drives the alarm 35414 to sound a warning, warning that the cutting wheel 376 has a certain inclination relative to the steel bar and needs maintenance. At the same time, the second threaded rod 35413 can be rotated to drive the adjusting block 35411 to move in the connecting The first slide 35412 is pressed against the second button 35412 by the inner wall of the rotating disk 33, and the ... The rod 3536 slides in the inner cavity of the slide groove 3532, and the second spring 3538 is compressed. At this time, the first slide rod 3536 presses the first button 3534. The pressing of the first button 3534 causes the speaker 3535 to sound an alarm, reminding the staff 3563 to slide in the inner cavity of the slide groove 3532, that is, the rotating disk 33 shakes relative to the storage rack 31, and equipment maintenance is required. Cooperate with the inclination detection of the horizontal detection mechanism 354 to keep the equipment level when cutting the steel bars, ensuring that the cast-in-place piles and steel bars have good stability after breaking.

[0047] See also Fig.13 , Fig.14 and Fig.15As shown, the cutting mechanism 37 includes a cutting ring 371, the axis of the cutting ring 371 is consistent with the axis of the cast-in-place pile, so that the cutting wheel 376 can perform ring cutting on the steel bars of the cast-in-place pile, the bottom end of the cutting ring 371 is fixedly installed with a fixing frame 372, there are two fixing frames 372, the bottom end of the fixing frame 372 is fixedly installed with a cylinder 373, the inner cavity of the cylinder 373 is slidably connected with a piston rod 374, the inner cavity of the fixing frame 372 is slidably connected with a third telescopic block 375, the piston rod 374 and the third telescopic block 375 are fixedly connected, the inner cavity of the third telescopic block 375 is provided with a cutting wheel 376, the cutting ring 371 and the connecting leg 36 are fixedly connected, the supporting mechanism 38 includes a supporting frame 381, and the middle part of the upper surface of the supporting frame 381 is provided with a plug The inner cavity of the support frame 381 is rotatably connected with a driving disk 383, and a driving groove 384 is provided on the outer surface of the driving disk 383. The inner cavity of the driving groove 384 is slidably connected with a second sliding rod 385, and the bottom end of the second sliding rod 385 is fixedly connected with a supporting block 386. The inner cavity of the driving disk 383 is fixedly installed with a fixing cylinder 387, and the inner cavity of the fixing cylinder 387 is slidably connected with an elastic rod 388. The outer surface of the elastic rod 388 is sleeved with a fourth spring 389. The top of the elastic rod 388 is fixedly installed with a limiting rod 3810, and the upper surface of the limiting rod 3810 is fixedly installed with an insertion rod 3811. The fourth spring 389 is located between the inner wall of the fixing cylinder 387 and the limiting rod 3810. The insertion rod 3811 is plugged into the jack 382, ​​and the fixing frame 37 2 and the support block 386 are located in a straight line, and the support block 386 is slidably connected to the bottom end of the support frame 381. When breaking the pile head of the cast-in-place pile, the device is first placed on the pile head so that the steel bar is located between the cutting mechanism 37 and the support mechanism 38. The cutting ring 371 is driven to rotate by the operation of the second motor 4, and the piston rod 374 is driven to move by the operation of the cylinder 373. The movement of the piston rod 374 drives the third telescopic block 375 to slide in the inner cavity of the fixed frame 372, so that the cutting wheel 376 is telescopic, ensuring that the cutting wheel 376 can gradually penetrate during cutting. At the same time, the rotating rod 34 drives the support frame 381 to rotate. The support block 386 is used to support the steel bar, that is, when the cutting wheel 376 cuts the steel bar, the support block 386 has a supporting effect on the steel bar. In order to prevent the steel bar from being deformed by a certain thrust during cutting, resulting in cracks in the concrete at the top of the bored pile, thereby affecting the overall stability of the bored pile, the spacing between the support block 386 and the cutting ring 371 can be adjusted according to the type of the steel bar, so as to facilitate the support of steel bars of various thicknesses. The two ends of the support block 386 are rounded to prevent the support block 386 from being squeezed by the steel bar during rotation. When the position of the support block 386 needs to be adjusted, the elastic rod 388 is pulled so that the elastic rod 388 is stored in the inner cavity of the fixed cylinder 387. At this time, the fourth spring 389 is compressed and the insertion rod 3811 and the insertion hole 382 are disengaged. The fixed cylinder 387 is rotated by rotating the elastic rod 388, and the rotation of the fixed cylinder 387 drives the driving disk 383 to rotate.The driving plate 383 rotates in the inner cavity of the support frame 381 to drive the second slide bar 385 to slide in the inner cavity of the driving groove 384. The sliding of the second slide bar 385 drives the support block 386 to slide on the support frame 381, thereby adjusting the distance between the support block 386 and the cutting wheel 376. When the appropriate position is reached, the elastic rod 388 is released. Under the elastic force of the fourth spring 389, the plug rod 3811 and the plug hole 382 are plugged again. At this time, the position of the support block 386 on the support frame 381 remains stable, thereby achieving support when breaking steel bars of different specifications.

[0048] In summary, the first motor 2 drives the support assembly 1 to adjust the overall specifications of the equipment so that the equipment can be used in narrow terrain. The second motor 4 enables the breaking assembly 3 to cut the steel bars and support the steel bars during cutting. It can also be adjusted according to the specifications of the steel bars. In addition, the flatness of the steel bars can be ensured during cutting, so that the pile heads of the cast-in-place piles remain intact after breaking. The overall specifications of the equipment are changed by extending and retracting the storage legs 12 in the inner cavity of the connecting frame 11 and the telescopic legs 13 in the inner cavity of the storage legs 12. The moving mechanism 14 is used to support and transport the equipment. The first motor 2 drives the storage legs 12 to move on the connecting frame 11 to change the overall width of the support assembly 1. The hydraulic cylinder in the inner cavity of the storage legs 12 drives the hydraulic rod The hydraulic rod drives the telescopic leg 13 to move in the inner cavity of the storage leg 12 to change the height of the equipment, so as to adjust the equipment according to the site, so that the equipment can work in a small space. The expansion of the storage leg 12 drives the first connecting bar 32 to expand in the inner cavity of the storage rack 31 to maintain the overall stability of the breaking component 3. The operation of the second motor 4 drives the rotating rod 34 to rotate, and the rotation of the rotating rod 34 drives the rotating disk 33 to rotate. The rotation of the rotating disk 33 drives the connecting leg 36 to rotate, and the rotation of the connecting leg 36 drives the cutting mechanism 37 to rotate. The rotation of the rotating rod 34 drives the supporting mechanism 38 to rotate at the same time. The cutting mechanism 37 is used to cut off the excess steel bars at the pile head of the cast-in-place pile. The supporting mechanism 38 is used to support the steel bars during cutting to prevent the steel bars from being deformed during cutting and to avoid damage to the cast-in-place pile.

[0049] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0050] What has been described above is only a preferred specific implementation manner of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A device for breaking the top of a bored pile in a narrow space, comprising a bracket assembly (1), characterized in that: A first motor (2) is arranged in the middle of the upper surface of the support assembly (1), a breaking assembly (3) is arranged on the inner wall of the support assembly (1), and a second motor (4) is arranged in the middle of the upper surface of the breaking assembly (3); The breaking assembly (3) comprises a storage rack (31), the inner cavities on both sides of the storage rack (31) are slidably connected with first connecting strips (32), the first connecting strips (32) are symmetrically distributed about the middle part of the storage rack (31), the first connecting strips (32) and the telescopic legs (13) are fixedly connected, a rotating disk (33) is arranged below the storage rack (31), the inner cavity of the storage rack (31) is rotatably connected with a rotating rod (34), the rotating disk (33) and the rotating rod (34) are fixedly connected, and the The outer surface of the storage rack (31) is provided with a comprehensive detection mechanism (35); the lower surface of the rotating disk (33) is fixedly mounted with a connecting leg (36); the bottom end of the connecting leg (36) is fixedly connected with a cutting mechanism (37); the bottom end of the rotating rod (34) is provided with a supporting mechanism (38); the outer surface of the rotating disk (33) is provided with a detection groove (39); the second motor (4) is located in the middle of the storage rack (31); and the output end of the second motor (4) is sleeved with the rotating rod (34).

2. The equipment for breaking the pile head of a bored pile in a narrow space as claimed in claim 1, characterized in that: The integrated detection mechanism (35) comprises a reset block (351), the reset block (351) and the storage rack (31) are slidably connected, a balance detection mechanism (352) is arranged below the reset block (351), a shaking detection mechanism (353) is arranged at the bottom end of the storage rack (31), and a horizontal detection mechanism (354) is arranged in the middle part of the shaking detection mechanism (353).

3. The equipment for breaking the pile head of a bored pile in a narrow space as claimed in claim 2, characterized in that: The balance detection mechanism (352) comprises a balance frame (3521), the upper surface of the balance frame (3521) is provided with a balance groove (3522), the inner cavity of the balance groove (3522) is provided with a roller (3523), the outer surface of the roller (3523) is provided with a balance block (3524), the roller (3523) and the balance groove (3522) are slidably connected, the balance block (3524) and the roller (3523) are rotatably connected, a pointer (3525) is fixedly installed on the outer surface of the balance block (3524), the balance frame (3521) and the storage rack (31) are fixedly connected, and the reset block (351) is located directly above the balance block (3524).

4. The equipment for breaking the top of a bored pile in a narrow space as claimed in claim 2, characterized in that: The shaking detection mechanism (353) comprises a fixing ring (3531), the outer surface of the fixing ring (3531) is provided with a sliding groove (3532), the outer surface of the fixing ring (3531) is fixedly mounted with a second connecting block (3533), the outer surface of the second connecting block (3533) is provided with a first button (3534), the outer surface of the second connecting block (3533) is fixedly mounted with a speaker (3535), the first button (3534) and the speaker (3535) are electrically connected, The pressing of the first button (3534) controls the speaker (3535) to sound an alarm; the inner cavity of the slide groove (3532) is movably connected to the first slide bar (3536); the outer surface of the first slide bar (3536) is slidably connected to a connecting ring (3537); the connecting ring (3537) and the inner cavity of the fixing ring (3531) are slidably connected; the outer surface of the first slide bar (3536) is sleeved with a second spring (3538); and the fixing ring (3531) and the storage rack (31) are fixedly connected.

5. The equipment for breaking the top of a bored pile in a narrow space as claimed in claim 4, characterized in that: The horizontal detection mechanism (354) includes a connecting seat (3541), the inner cavity of the connecting seat (3541) is slidably connected to a sliding seat (3542), the inner cavity of the sliding seat (3542) is rotatably connected to a pressure ring (3543), the bottom end of the sliding seat (3542) is sleeved with a third spring (3544), the bottom end of the sliding seat (3542) and the bottom wall of the connecting seat (3541) are spaced apart, the bottom end of the third spring (3544) and the inner wall of the connecting seat (3541) are fixedly connected, the side of the pressure ring (3543) away from the sliding seat (3542) is tightly fitted with a horizontal seat (3545), and the horizontal The inner cavity of the seat (3545) is fixedly connected with a connecting rod (3546), and the connecting rod (3546) and the connecting seat (3541) are rotatably connected. A second connecting strip (3547) is fixedly installed on the side of the horizontal seat (3545) away from the pressure ring (3543), and a floating rod (3548) is fixedly installed in the middle part of the second connecting strip (3547). The two ends of the second connecting strip (3547) are movably connected with balancing balls (3549). A pressure block (35410) is fixedly installed on the outer surface of the connecting rod (3546), and an adjustment block (3541) is slidably connected to the outer surface of the connecting seat (3541). 5411), the outer surface of the adjustment block (35411) is provided with a second button (35412), the inner cavity of the connecting seat (3541) is rotatably connected with a second threaded rod (35413), the adjustment block (35411) and the second threaded rod (35413) are connected by threads, and the threads at both ends of the second threaded rod (35413) are in opposite directions, the outer surface of the connecting seat (3541) is provided with an alarm (35414), the second button (35412) and the alarm (35414) are electrically connected, and pressing the second button (35412) controls the alarm (35414) to emit a warning The horizontal seat (3545) is symmetrically distributed about the pressure ring (3543), the first sliding rod (3536) and the connecting seat (3541) are fixedly connected, the second spring (3538) is located between the connecting seat (3541) and the connecting ring (3537), the connecting seat (3541) and the bottom end of the storage rack (31) are slidably connected, the balancing ball (3549) and the rotating disk (33) are in contact, the floating rod (3548) is located in the middle part between the rotating rods (34), and the floating rod (3548) and the inner wall of the rotating disk (33) do not contact, and the rotating rod (34) and the support frame (381) are fixedly connected.

6. The equipment for breaking the top of a bored pile in a narrow space as claimed in claim 1, characterized in that: The cutting mechanism (37) comprises a cutting ring (371), a fixing frame (372) is fixedly mounted on the bottom end of the cutting ring (371), two fixing frames (372) are provided, a cylinder (373) is fixedly mounted on the bottom end of the fixing frame (372), a piston rod (374) is slidably connected to the inner cavity of the cylinder (373), a third telescopic block (375) is slidably connected to the inner cavity of the fixing frame (372), the piston rod (374) and the third telescopic block (375) are fixedly connected, a cutting wheel (376) is provided in the inner cavity of the third telescopic block (375), and the cutting ring (371) and the connecting leg (36) are fixedly connected.

7. The equipment for breaking the top of a bored pile in a narrow space as claimed in claim 6, characterized in that: The support mechanism (38) comprises a support frame (381), a plug hole (382) is provided in the middle of the upper surface of the support frame (381), the inner cavity of the support frame (381) is rotatably connected to a driving disk (383), the outer surface of the driving disk (383) is provided with a driving groove (384), the inner cavity of the driving groove (384) is slidably connected to a second sliding rod (385), the bottom end of the second sliding rod (385) is fixedly connected to a support block (386), the inner cavity of the driving disk (383) is fixedly installed with a fixing cylinder (387), the inner cavity of the fixing cylinder (387) is slidably connected to There is an elastic rod (388), the outer surface of which is sleeved with a fourth spring (389), the top of which is fixedly mounted with a limiting rod (3810), the upper surface of which is fixedly mounted with an insertion rod (3811), the fourth spring (389) is located between the inner wall of the fixed cylinder (387) and the limiting rod (3810), the insertion rod (3811) is inserted into the socket (382), the fixed frame (372) and the support block (386) are located in a straight line, and the support block (386) and the bottom end of the support frame (381) are slidably connected.

8. The equipment for breaking the top of a bored pile in a narrow space as claimed in claim 1, characterized in that: The support assembly (1) comprises a connecting frame (11), the two ends of the connecting frame (11) are slidably connected to storage legs (12), the inner cavity of the storage leg (12) is slidably connected to a telescopic leg (13), the inner wall of the storage leg (12) is provided with a hydraulic cylinder, the inner cavity of the hydraulic cylinder is slidably connected to the hydraulic cylinder, the bottom end of the telescopic leg (13) is fixedly installed with a moving mechanism (14), the two ends of the connecting frame (11) are slidably connected to a telescopic mechanism (15), the bottom end of the connecting frame (11) is rotatably connected to a gear (16), the two ends of the gear (16) are provided with racks (17), the rack (17) and the connecting frame (11) are slidably connected, the rack (17) and the storage leg (12) are fixedly connected, and the gear (16) is sleeved with the output end of the first motor (2).

9. The equipment for breaking the top of a bored pile in a narrow space as claimed in claim 8, characterized in that: The moving mechanism (14) comprises a base (141), wherein the base (141) and the telescopic leg (13) are fixedly connected, the inner cavity of the base (141) is rotatably connected to a first threaded rod (142), the inner wall of the base (141) is slidably connected to a slider (143), the slider (143) and the first threaded rod (142) are connected by threads, and the threads at two ends of the first threaded rod (142) are in opposite directions, the bottom end of the slider (143) is rotatably connected to a pressure ball (144), the inner cavity of the base (141) is slidably connected to a first telescopic block (145), the inner wall of the bottom end of the first telescopic block (145) is rotatably connected to a rolling rod (146), and the two ends of the first telescopic block (145) are fixedly connected to the first A spring (147), the top end of the first spring (147) is fixedly connected to the top and bottom wall of the base (141), the telescopic mechanism (15) comprises a second telescopic block (151), the outer surface of the second telescopic block (151) is fixedly mounted with a first connecting block (152), the first connecting block (152) and the connecting frame (11) are slidably connected, both ends of the second telescopic block (151) are fixedly mounted with (153), the outer surfaces of the storage legs (12) and (153) are both provided with protrusions (154), the inner cavity of the protrusion (154) is provided with a fifth spring, the protrusion (154) and the fifth spring are elastically connected, and the inner walls of the connecting frame (11) and the second telescopic block (151) are both provided with grooves (155).

10. A method for breaking the head of a bored pile in a narrow space, performed by the bored pile head breaking device for a narrow space according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. After the concrete pouring of the bored pile is completed, concrete is injected into the pre-drilled hole, the above device is transferred to the top of the bored pile, the pile top clearance depth is calculated, and a uniform mark is made with lines; S2. Adjust the size of the equipment as a whole according to the terrain of the site, that is, adjust the equipment adaptively through the bracket assembly (1) to ensure that the site can be used; S3, by breaking the component (3), the redundant steel bars are cut, and the top is cleared, and then the concrete cushion is constructed, and the subsequent waterproofing work is carried out to ensure the stability of the cast-in-place piles and the firmness of the overall structure.

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