LU600249B1 - Karst cave treatment device for deep foundation pit pile foundation construction in karst areas - Google Patents

Abstract

The invention discloses a karst cave treatment device for deep foundation pit pile foundation construction in karst area, which belongs to the technical field of civil engineering, and includes a supporting mechanism, where the supporting mechanism is provided with a lifting mechanism, a moving seat is arranged on the lifting mechanism, an adjusting mechanism is arranged on the moving seat, an air cylinder is arranged on the adjusting mechanism, and a clamping mechanism is arranged at the output end of the air cylinder. According to the invention, the steel casing is clamped by the clamping mechanism, and the position of the clamping mechanism is adjusted by the adjusting mechanism, so that the position of the steel casing is adjusted, the steel casing is aligned with the drilled hole, and then the steel casing is driven to descend into the drilled hole by the lifting mechanism.

Description

DESCRIPTION

LU600249

KARST CAVE TREATMENT DEVICE FOR DEEP FOUNDATION PIT PILE

FOUNDATION CONSTRUCTION IN KARST AREAS

TECHNICAL FIELD

The invention relates to the technical field of civil engineering, in particular to a karst cave treatment device for deep foundation pit pile foundation construction in karst areas.

BACKGROUND

Karst refers to the comprehensive geological action of groundwater or surface water on soluble rocks, mainly by dissolution, supplemented by mechanical erosion and gravity, which leads to the destruction of rocks and the removal, transfer and redeposition of substances. The topography and deposits formed by karst are called karst landforms and deposits. With the development of underground engineering, the situation of foundation pit construction in karst and other complex geological areas is gradually increasing, and caves are often found in construction areas, which will affect the stability of foundation. At present, the treatment methods of karst caves are mostly divided into flaky backfill, plain concrete backfill and steel casing follow-up reinforcement. When punching cast-in-place piles in karst caves and adding steel liners, it is necessary to press or vibrate the steel liners into the drilled holes. However, when the steel liners are pressed or vibrated into the drilled holes, they are prone to angle deviation, resulting in excessive sinking resistance of the steel liners and slow construction efficiency.

SUMMARY

LU600249

The purpose of the invention is to provide a karst cave treatment device for deep foundation pit pile foundation construction in karst areas, and solve the problem that when steel liners are pressed or vibrated into drilled holes, they are prone to angle deviation, resulting in excessive sinking resistance of steel liners and slow construction efficiency.

In order to solve the technical problems, the invention adopts the following technical scheme: the invention relates to a karst cave treatment device for deep foundation pit pile foundation construction in karst area, which includes a supporting mechanism, where a lifting mechanism is arranged on the supporting mechanism, a moving seat is arranged on the lifting mechanism, an adjusting mechanism is arranged on the moving seat, an air cylinder is arranged on the adjusting mechanism, and a clamping mechanism is arranged at the output end of the air cylinder.

Further, the supporting mechanism includes an underframe, the left and right sides of the underframe are provided with moving wheels, the left side of the underframe is provided with a vertical bracket, the vertical bracket is provided with the lifting mechanism, and the right side of the vertical bracket is provided with a pull rod.

Further, the top surface of the underframe is provided with a reinforcing frame.

Further, the vertical support includes a first support tube, and second support tubes are arranged at the front and rear sides of the first support tube, and support plates are arranged on the top surfaces of the first support tube and the two second support tubes.

Further, the lifting mechanism includes a first motor, which is arranged on the support plate; a first lead screw is arranged in the first support tube, which is connected with the output shaft of the first motor; a first moving block is screwed on the first lead screw; the left side of the first moving block is provided with the moving seat; a first guide rod is arranged in the second support tube, the first guide rod is provided with a first guide block, and the first guide block is connected with the moving seat.

Further, the adjusting mechanism includes a second motor, which is arranged at the front side of the moving seat; a second screw rod is arranged in the moving seat 099249 the second screw rod is connected with the output shaft of the second motor; the upper and lower sides of the second screw rod are provided with second guide rods; a movable mounting bracket is connected with the second screw rod in a threaded way; a through hole matched with the second guide rod is arranged on the movable mounting bracket; and the cylinder is arranged on the movable mounting bracket.

Further, the clamping mechanism includes a fixed frame, which is arranged on the left side of the movable mounting frame; a push rod is arranged in the fixed frame; a piston rod of the air cylinder penetrates through the mounting plate of the fixed frame and is connected with the push rod; a bracket is arranged on the left side of the fixed frame; two clamping claws are symmetrically arranged on the bracket; and the clamping claws are connected with the push rod through connecting rods.

Further, the bracket is arranged in a T-shape.

Compared with the prior art, the invention has the beneficial technical effects that: according to the invention, the steel casing is clamped by the clamping mechanism, and the position of the clamping mechanism is adjusted by the adjusting mechanism, so that the position of the steel casing is adjusted, so that the steel casing is aligned with the drilled hole, and then the steel casing is driven to descend into the drilled hole by the lifting mechanism, so that the position deviation of the steel casing does not occur in the descending process, the installation efficiency of the steel casing is greatly improved, and it solves the problem that the angle deviation is easy to occur when the steel casing is pressed or vibrated into the drilled hole, resulting in excessive sinking resistance of the steel casing and slow construction efficiency; the clamping mechanism of the invention is connected with the air cylinder, and by controlling the extension length of the piston rod of the air cylinder and the distance between two clamping jaws, steel liners with different sizes can be clamped, so that the applicability of the device is improved.

BRIEF DESCRIPTION OF THE FIGURES

LU600249

The invention will be further described with reference to the accompanying drawings.

Fig. 1 is a front view of a karst cave treatment device for deep foundation pit pile foundation construction in karst area of the invention;

Fig. 2 is a schematic diagram of the three-dimensional structure of the supporting mechanism, lifting mechanism, moving seat and adjusting mechanism of the invention;

Fig. 3 is a schematic diagram of the three-dimensional structure of the supporting mechanism, liftng mechanism, moving seat and adjusting mechanism from another angle;

Fig. 4 is an enlarged view at A in Fig. 3;

Fig. 5 is a schematic diagram of the three-dimensional structure of the cylinder and the clamping mechanism of the invention.

Description of reference numerals: 1. Underframe; 2. Moving wheel; 3. Vertical bracket; 3-1. First support tube; 3-2. Second support tube; 3-3. Support plate; 4. Pull rod; 5. Reinforcing frame; 6. First motor; 7. First lead screw; 8. First moving block; 9. Moving seat; 10. First guide rod; 11. Second motor, 12. Second lead screw; 13. Second guide rod; 14. Moving mounting frame; 15. Air cylinder; 16. Clamping mechanism; 16-1. Fixed frame; 16-2. Push rod; 16-3. Connecting rod; 16-4. Bracket; 16-5. Clamping claw; 17.

Insert rod.

DESCRIPTION OF THE INVENTION

As shown in Figs. 1-5, a karst cave treatment device for deep foundation pit pile foundation construction in karst area includes a supporting mechanism, where a lifting mechanism is installed on the supporting mechanism, a moving seat 9 is installed on the lifting mechanism, an adjusting mechanism is installed on the moving seat 9, an air cylinder 15 is installed on the adjusting mechanism, and the output end of the air cylinder 15 is connected with a clamping mechanism 16.

As shown in Figs. 2-4, the supporting mechanism includes an underframe 1, two moving wheels 2 are installed on the left and right sides of the underframe 1, a vertical 7949 bracket 3 is connected to the left side of the underframe 1, the lifting mechanism is installed on the vertical bracket 3, and a pull rod 4 is connected to the right side of the vertical bracket 3, the top end of the pull rod 4 is connected with the vertical bracket 3, the bottom end of the pull rod 4 is connected with the underframe 1, and the top surface of the underframe 1 is connected with a reinforcing frame 5.

The vertical bracket 3 includes a first support tube 3-1, and second support tubes 3-2 are arranged at the front and rear sides of the first support tube 3-1, and the top surfaces of the first support tube 3-1 and the two second support tubes 3-2 are connected with support plates 3-3.

The lifting mechanism includes a first motor 6, which is installed on the support plate 3-3, and a first lead screw 7 is rotatably connected to the inside of the first support tube 3-1, which is connected with the output shaft of the first motor 6, and a first moving block 8 is threadedly connected to the first lead screw 7, and the left side of the first moving block 8 is connected with the moving seat 9, a first guide rod 10 is installed inside the second support tube 3-2, and a first guide block is connected to the first guide rod 10, and the first guide block is connected with the moving seat 9; specifically, the left side of the first support tube 3-1 is provided with a first through groove, and the left side of the second support tube 3-2 is provided with a second through groove, the right side of the moving seat 9 is connected with a connecting block matched with the first through slot and the second through slot, and the connecting block is connected with the first moving block 8 and the first guide block; When in use, the first motor 6 is started, and the first motor 6 drives the first lead screw 7 to rotate, and the rotation of the first lead screw 7 drives the moving seat 9 to move in the vertical direction.

The adjusting mechanism includes a second motor 11, which is installed at the front side of the moving seat 9, and a second lead screw 12 is rotatably installed inside the moving seat 9, which is connected with the output shaft of the second motor 11, and the upper and lower sides of the second lead screw 12 are provided with second guide rods 13, and the second lead screw 12 is threadedly connected with a moving mounting bracket 14, the movable mounting frame 14 is provided with a through hole matched with the second guide rod 13, and the air cylinder 15 is mounted on the movable mounting frame 14; when in use, the second motor 11 is started, and the second motor 11 drives the second lead screw 12 to rotate, and the rotation of the second lead screw 12 drives the movable mounting frame 14 to move in the front-back direction.

As shown in Fig. 5, the clamping mechanism 16 includes a fixed frame 16-1, which is connected to the left side of the movable mounting frame 14, a push rod 16-2 5 000249 arranged inside the fixed frame 16-1, and the piston rod of the air cylinder 15 passes through the mounting plate of the fixed frame 16-1 and is connected with the push rod 16-2, and the left side of the fixed frame 16-1 is connected with a bracket 16-4, the bracket 16-4 is arranged in a T-shape, two clamping claws gripper 16-5 are symmetrically hinged on the bracket 16-4, and the clamping claws 16-5 are hinged with the push rod 16-2 through a connecting rod 16-3; When in use, the piston rod of the air cylinder 15 extends to drive the two clamping jaws 16-5 to approach each other, and the two clamping jaws 16-5 clamp the steel liners, and the piston rod of the air cylinder 15 contracts to drive the two clamping jaws 16-5 to move away from each other, by controlling the extending length of the piston rod of the air cylinder 15, steel liners with different sizes can be clamped.

The working process of the invention is as follows: firstly, the device is moved to the vicinity of a deep foundation pit, and an insert rod 17 is inserted into the underframe 1, and the bottom end of the insert rod 17 is inserted into the ground, so that the position of the device is fixed and the device is prevented from being displaced during work; then, the piston rod of the air cylinder 15 extends to drive the two clamping claws 16-5 to approach each other, and the two clamping claws 16-5 clamp the steel casing; after that, the second motor 11 is started, and the second motor 11 drives the second lead screw 12 to rotate, and the rotation of the second lead screw 12 drives the movable mounting frame 14 to move in the front-back direction, so that the steel casing is located right above the drilling hole; finally, the first motor 6 is started, and the first motor 6 drives the first lead screw 7 to rotate, and the rotation of the first lead screw 7 drives the moving seat 9 to descend, so that the steel casing sinks into the borehole.

The above-mentioned embodiments only describe the preferred mode of the invention, and do not limit the scope of the invention. Under the premise of not departing from the design spirit of the invention, various modifications and improvements made by ordinary technicians in the field to the technical scheme of the invention shall fall within the protection scope determined by the claims of the invention.

Claims (8)

CLAIMS LU600249

1. A karst cave treatment device for deep foundation pit pile foundation construction in karst area, comprising a supporting mechanism, wherein a lifting mechanism is arranged on the supporting mechanism, a moving seat (9) is arranged on the lifting mechanism, an adjusting mechanism is arranged on the moving seat (9), an air cylinder (15) is arranged on the adjusting mechanism, and a clamping mechanism (16) is arranged at the output end of the air cylinder (15).

2. The karst cave treatment device for deep foundation pit pile foundation construction in karst area according to claim 1, characterized in that the supporting mechanism comprises an underframe (1), the left and right sides of the underframe (1) are provided with moving wheels (2), the left side of the underframe (1) is provided with a vertical bracket (3), the vertical bracket (3) is provided with the lifting mechanism, and the right side of the vertical bracket (3) is provided with a pull rod (4).

3. The karst cave treatment device for deep foundation pit pile foundation construction in karst area according to claim 2, characterized in that the top surface of the underframe (1) is provided with a reinforcing frame (5).

4. The karst cave treatment device for deep foundation pit pile foundation construction in karst area according to claim 2, characterized in that the vertical support (3) comprises a first support tube (3-1), and the front and rear sides of the first support tube (3-1) are provided with second support tubes (3-2), and the top surfaces of the first support tube (3-1) and the two second support tubes (3-2) are provided with support plates (3-3).

5. The karst cave treatment device for deep foundation pit pile foundation construction in karst area according to claim 4, characterized in that the lifting mechanism comprises a first motor (6), the first motor (6) is arranged on the support plate (3-3), and a first lead screw (7) is arranged in the first support tube (3-1), the first lead screw (7) is connected with the output shaft of the first motor (6), and a first moving block (8) is connected with the first lead screw (7) in a screw thread, the moving seat (9) is arranged on the left side of the first moving block (8), a first guide rod (10) is arranged in the second support tube (3-2), and a first guide block is arranged on the first guide rod (10), and the first guide block is connected with the moving seat (9). 7600249

6. The karst cave treatment device for deep foundation pit pile foundation construction in karst area according to claim 5, characterized in that the adjusting mechanism comprises a second motor (11), the second motor (11) is arranged at the front side of the moving seat (9), and a second screw rod (12) is arranged inside the moving seat (9), the second lead screw (12) is connected with the output shaft of the second motor (11), the upper and lower sides of the second lead screw (12) are provided with second guide rods (13), the second lead screw (12) is connected with a movable mounting bracket (14) in a threaded way, the moving mounting bracket (14) is provided with a through hole matched with the second guide rod (13), and the air cylinder (15) is arranged on the moving mounting bracket (14).

7. The karst cave treatment device for deep foundation pit pile foundation construction in karst area according to claim 6, characterized in that the clamping mechanism (16) comprises a fixed frame (16-1), the fixed frame (16-1) is arranged on the left side of the moving mounting frame (14), a push rod (16-2) is arranged in the fixing frame (16-1), a piston rod of the air cylinder (15) penetrates the mounting plate of the fixing frame (16-1) and is connected with the push rod (16-2), and a bracket (16-4) is arranged on the left side of the fixing frame (16-1), the bracket (16-4) is symmetrically provided with two clamping claws (16-5), and the clamping claws (16-5) are connected with the push rod (16-2) through a connecting rod (16-3).

8. The karst cave treatment device for deep foundation pit pile foundation construction in karst area according to claim 7, characterized in that the bracket (16-4) is arranged in a T-shape.