CN-116971371-B - Pile foundation construction device and construction method for hole collapse part of bored pile

CN116971371BCN 116971371 BCN116971371 BCN 116971371BCN-116971371-B

Abstract

The invention belongs to the technical field of pile foundation construction, in particular to a pile foundation construction device and a construction method for a hole collapse part of a bored pile, comprising a foundation, wherein a pile casing is inserted into the foundation, a pouring hole is formed in the foundation, a supporting piece is connected to the inside of the pouring hole through an adjusting mechanism, a ring groove is formed in the surface of the supporting piece, a detection table is slidingly connected to the inner wall of the ring groove, a sealing ring is fixedly arranged on the surface of the supporting piece, the support and the detection table are placed at the bottom of the pouring hole through the adjusting mechanism, the sealing ring can prevent liquid in the pouring hole from entering the table, damage to the pressure sensor caused by the liquid is avoided, when the pressure sensor is extruded, signals can be transmitted to the ground alarm device, workers are reminded of hole collapse, and according to pressure data transmitted by the pressure sensor, the fact that the pressure data are small in range and the hole collapse is small in range or the pressure data are large in range and the hole collapse is large in range can be detected, so that different repairing schemes can be formulated.

Inventors

BAI HONGWEI
WANG DU
LIAO BO
WANG QIUYUE
Pan Huaiding
YAO JI
WEN SHILIN
XU YU
Zheng Binwen

Assignees

四川公路桥梁建设集团有限公司

Dates

Publication Date: 20260505
Application Date: 20230801

Claims (7)

1. The pile foundation construction device for the hole collapse part of the bored pile is characterized by comprising a foundation (1), wherein a pile casing (2) is inserted into the foundation (1), a pouring hole is formed in the foundation (1), a supporting piece (4) is connected to the inside of the pouring hole through an adjusting mechanism, a ring groove (6) is formed in the surface of the supporting piece (4), a detection table (3) is slidably connected to the inner wall of the ring groove (6), a sealing ring (7) is fixedly arranged on the surface of the supporting piece (4), one side, far away from the supporting piece (4), of the sealing ring (7) abuts against the inner wall of the detection table (3), a pressure sensor (5) is fixedly arranged on the inner wall of the detection table (3), and the pressure sensor (5) is located under the supporting piece (4) and is connected with a ground alarm device; the adjusting mechanism comprises a cutting sleeve (8), the cutting sleeve (8) is sleeved on the surface of the protective sleeve (2), a supporting table (9) is fixedly arranged on the surface of the cutting sleeve (8), a winding roller (10) is rotatably arranged on the surface of the supporting table (9), a winding motor (11) is fixedly arranged on the surface of the supporting table (9), an output shaft of the winding motor (11) is fixedly connected with the surface of the winding roller (10), a steel cable (12) is fixedly connected with the surface of the winding roller (10), a connecting table (14) is fixedly arranged at the other end of the steel cable (12), a supporting piece (4) is fixedly arranged on the lower surface of the connecting table (14), a supporting wheel (13) is fixedly arranged on the surface of the cutting sleeve (8), and the surface of the supporting wheel (13) is propped against the steel cable (12). The detection device is characterized in that an installation groove (22) is formed in the detection table (3), an electromagnet (23) is fixedly installed on the inner wall of the installation groove (22), a group of springs II (24) are fixedly installed on the surface of the electromagnet (23), a detection rod (25) is fixedly installed at the other end of each spring II (24), the detection rod (25) is made of a magnet, and the electromagnet (23) and the detection rod (25) repel each other after being electrified; A group of telescopic rods (30) are arranged in the connecting table (14), and pushing plates (31) are fixedly arranged at the output ends of the telescopic rods (30).
2. The pile foundation construction device for a hole collapse portion of a bored pile according to claim 1, wherein a waterproof membrane is sleeved on the surface of the pressure sensor (5), and the waterproof membrane has ductility.
3. The pile foundation construction device for a hole collapse position of a bored pile according to claim 1, wherein a sleeve (15) is fixedly arranged on the inner wall of the detection table (3), a sliding barrel (16) is arranged on the inner wall of the sleeve (15) in a sliding sealing manner, the upper surface of the sliding barrel (16) is fixedly connected with the lower surface of the supporting piece (4), a connecting hole (17) is formed in the surface of the sliding barrel (16), a group of movable rods (18) are fixedly arranged on the lower surface of the sliding barrel (16), a movable plate (19) is slidably arranged on the surface of the movable rods (18), a first spring (21) is fixedly arranged on the surface of the movable rod (18), the other end of the first spring (21) is fixedly connected with the surface of the movable plate (19), fine holes (20) are formed in the surface of the movable plate (19), and the pore diameter of the fine holes (20) is smaller than that of the connecting hole (17), and the movable plate (19) is attached to the lower surface of the sliding barrel (16).
4. The pile foundation construction device for a hole collapse portion of a bored pile according to claim 3, wherein a groove is formed in one end of the detection rod (25) away from the spring, and a roller (26) is rotatably mounted on the inner wall of the groove.
5. The pile foundation construction device for a hole collapse portion of a bored pile according to claim 4, wherein a cavity (27) is formed in the connecting table (14), a forward and reverse rotation motor (28) is fixedly mounted on the inner wall of the cavity (27), a round table (29) is fixedly mounted at the output end of the forward and reverse rotation motor (28), and a group of telescopic rods (30) are fixedly connected with the surface of the round table (29).
6. The pile foundation construction device for the hole collapse portion of the bored pile according to claim 5, wherein a wiper (32) is fixedly mounted on the inner wall of the cutting sleeve (8), and the wiper (32) is made of rubber.
7. A pile foundation construction method for a hole collapse portion of a bored pile, which adopts the pile foundation construction device for a hole collapse portion of a bored pile according to any one of claims 1 to 6, characterized in that the method comprises the steps of: S1, when whether a pouring hole collapses or not is detected in real time, a supporting piece (4) and a detection table (3) are placed at the bottom of the pouring hole through an adjusting mechanism, when the hole collapse phenomenon occurs in the pouring hole, soil at the collapsing position falls on the supporting piece (4), and the supporting piece (4) moves in the detection table (3) immediately and presses a pressure sensor (5); S2, when the supporting piece (4) moves in the detection table (3), the sealing ring (7) slides and rubs with the inner wall of the detection table (3) to enable the detection table (3) to be in a sealing state; And S3, when the pressure sensor (5) is extruded, a signal is transmitted to ground alarm equipment to remind workers of hole collapse, and the collapse degree of the hole wall can be detected according to pressure data transmitted back by the pressure sensor (5) to formulate different repairing schemes.

Description

Pile foundation construction device and construction method for hole collapse part of bored pile Technical Field The invention belongs to the technical field of pile foundation construction, and particularly relates to a pile foundation construction device and a construction method for a hole collapse part of a bored pile. Background In bridge engineering, a bored pile is needed to be manufactured, the bored pile is a pile which is formed by boring in place and pouring concrete or reinforced concrete, and the bored pile is bored by a common method, namely, the bored pile is formed by boring and pouring concrete in situ by using a spiral drilling machine, a diving drilling machine and the like, and the bored pile is free from vibration and soil extrusion during construction, but the settlement of the bored pile is slightly larger. Aiming at the prior related technology, the inventor considers that the defects that the phenomenon of hole collapse can occur after the filling hole of the bridge filling pile on the market is drilled, the traditional hole collapse detection mode is to place a depth measuring hammer into the filling hole, when the depth measuring hammer originally remained in the ground cannot be pulled up or put into the depth measuring hammer, the measured hole depth has a larger difference with the original hole depth, the phenomenon of hole collapse can be confirmed, the method cannot know the occurrence of the hole collapse phenomenon in time, the severity of the hole collapse cannot be known quickly, and a repair scheme cannot be formulated quickly according to the severity of the hole collapse. The invention provides a pile foundation construction device and a construction method for a hole collapse part of a bored pile. Disclosure of Invention In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved. The pile foundation construction device for the hole collapse part of the bored pile comprises a foundation, wherein a pile casing is inserted into the foundation, a pouring hole is formed in the foundation, a supporting piece is connected to the inside of the pouring hole through an adjusting mechanism, a ring groove is formed in the surface of the supporting piece, a detection table is slidably connected to the inner wall of the ring groove, a sealing ring is fixedly arranged on the surface of the supporting piece, one side, away from the supporting piece, of the sealing ring abuts against the inner wall of the detection table, a pressure sensor is fixedly arranged on the inner wall of the detection table and is located under the supporting piece, and the pressure sensor is connected with ground alarm equipment; After the filling hole of the bridge filling pile on the market is drilled, the hole collapse phenomenon can occur, the traditional hole collapse detection mode is to place a depth measuring hammer into the filling hole, when the depth measuring hammer originally remained in the ground cannot be pulled up or put into the depth measuring hammer, the difference between the measured hole depth and the original hole depth is larger, the hole collapse phenomenon can be confirmed, the method cannot know the occurrence of the hole collapse phenomenon in time, the severity degree of the hole collapse cannot be known quickly, a repairing scheme cannot be formulated quickly according to the severity degree of the hole collapse, in order to detect whether the hole collapse occurs in the filling hole in real time, a supporting piece and a detecting table are put into the bottom of the filling hole through an adjusting mechanism, when the hole collapse phenomenon occurs in the filling hole, soil at the hole collapse position falls on the supporting piece, the supporting piece moves in the detecting table immediately and presses pressure sensing, a sealing ring can prevent liquid in the filling hole from entering the detecting table, the damage to the pressure sensor is avoided, when the pressure sensor is pressed, signals can be transmitted to ground alarm equipment, workers are reminded of the hole collapse phenomenon, and the working personnel can collapse phenomenon according to the pressure sensor is formulated as a large data range, and the data range is smaller than the small data range. The waterproof membrane has ductility, and the sealing ring can have the effect of weakening the sealing effect after long-term use, so that the waterproof membrane can have the effect of temporarily preventing water from contacting the pressure sensor when water enters the detection table due to weakening of the sealing effect of the sealing ring, and the sealing ring can be replaced in time after the detection table moves out of the pouring hole. Preferably, the adjusting mechanism comprises a clamping sleeve, the clamping sleeve is sleeved on the surface of the protective sleeve, a supporting table is fixedly arranged on the surface