A self-balancing static drilling root pile hoisting and threading device and construction method thereof

Abstract

The present invention relates to a self-balancing static drilling root pile hoisting and threading device, including a self-balancing hoisting device, including a base and a support column, a hoisting bracket is provided at the upper end of the support column, a hoisting pulley group is provided on the hoisting bracket, a hoisting cable is wound on the hoisting pulley group, and a first driving mechanism for winding up the hoisting cable is provided on the base; a plurality of sensors for detecting whether the pipe pile is parallel to the support column are provided on the support column; a hoisting rope hook mechanism is installed on the hoisting bracket, including a hoisting rope pulley, a hanging rope arranged on the hoisting rope pulley, and a pendant connected to the lower end of the hanging rope, the hoisting rope pulley is connected to the second driving mechanism, and can be wound around the hoisting rope pulley to rise or fall under the action of the second driving mechanism; the pendant passes through the middle channel of the hoisted pipe pile. Compared with the prior art, the device of the present invention can solve the problem that the wire in the pile hole of the lower pile is difficult to pass through the pile hole of the upper pile, and at the same time can maintain the verticality of the planted pile.

Description

Technical Field

[0001] The invention relates to the technical field of pile foundations, and in particular to a self-balancing static drilling root pile hoisting and threading device and a construction method thereof. Background Art

[0002] During construction, static drill rooted piles are generally set up in multiple sections according to the depth requirements. Adjacent static drill rooted piles need to be assembled and spliced ​​(such as welding). The verticality control when connecting multiple sections of static drill rooted piles is very critical and is the focus of control during construction, which is often difficult to control. In addition, during the static drill rooted pile test pile construction process, it is also necessary to pre-embed stress wires inside the pipe piles. Since a single pile is generally welded and assembled from two or more sections of pipe piles, during the hoisting process, because the stress wire is set in the lowest pile hole, when it is welded to the upper pile in a vertical state, there is a problem of how the wire set in the pile hole of the lower pile can pass through the pile hole of the upper pile. Summary of the invention

[0003] The purpose of the present invention is to provide a self-balancing static drilling root pile hoisting and threading device and a construction method thereof in order to solve the above problems.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A self-balancing static drilling root pile hoisting and threading device, comprising:

[0006] The self-balancing lifting device is used for lifting pipe piles, comprising: a base and a support column vertically mounted on the base, a lifting bracket is provided on the upper end of the support column, a lifting pulley block is provided on the lifting bracket, a lifting cable is wound around the lifting pulley block, and a first driving mechanism for winding up the lifting cable is provided on the base; a plurality of sensors for detecting whether the pipe pile is parallel to the support column are provided on the support column;

[0007] A hanging rope hook mechanism is installed on the hanging bracket, comprising: a hanging rope pulley, a hanging rope arranged on the hanging rope pulley, and a pendant connected to the lowermost end of the hanging rope, wherein the hanging rope pulley is connected to the second driving mechanism and can be wound around the hanging rope pulley to ascend or descend under the action of the second driving mechanism;

[0008] The pendant passes through the middle hole of the hoisted pipe pile.

[0009] Furthermore, the bottom end of the support column is hinged to the front end of the base, and the angle can be adjusted as needed. The top surface or the bottom surface of the support column is provided with a level.

[0010] Furthermore, the support column is provided with three X-direction distance sensors, which are used to measure the distance between the support column and the pipe pile; the support column is provided with three L-shaped plates, which are used to measure the distance between the support column and the pipe pile. The free end of each L-shaped plate is provided with a Y-direction distance sensor, which is used to measure the distance between the free end and the pipe pile, wherein the X direction is perpendicular to the Y direction and is in the same horizontal plane.

[0011] Furthermore, a reinforcing connecting rod is provided between the middle portion of the support column and the base.

[0012] Furthermore, it also includes a vertical correction mechanism arranged on the upper part of the foundation pit, including a positioning support frame, and a support unit for adjusting the pipe piles is provided on the positioning support frame.

[0013] Furthermore, the support unit is composed of a plurality of telescopic hydraulic cylinders, and the plurality of telescopic hydraulic cylinders are arranged around the axial direction of the pipe pile at equal intervals.

[0014] Furthermore, the telescopic ends of the telescopic hydraulic cylinder are arranged in the horizontal direction and are perpendicular to the axial direction of the static drill rooted pile, and are pressed against the side wall of the static drill rooted pile.

[0015] Furthermore, the first driving mechanism and the second driving mechanism are both driving motors, and the second driving mechanism is installed on the hanging bracket.

[0016] Furthermore, the hanging rope is a hemp rope, the pendant is a plumb bob, and a connecting hole is provided on the plumb bob.

[0017] A construction method for a self-balancing static drilling root pile hoisting and threading device comprises the following steps:

[0018] (1) The first section of the static drill rooted pile is lifted by a self-balancing lifting device and lowered into the foundation pit. During the lowering process, the sensor on the support column is used to detect whether the static drill rooted pile is in a vertical state. After the end of the first section of the static drill rooted pile is extended into the vertical correction mechanism, if the static drill rooted pile is not vertical, the vertical correction mechanism is used to adjust it, and the first section of the static drill rooted pile is vertically sent into the foundation pit, and its upper end extends out of the foundation pit and is fixed on the vertical correction mechanism to be suspended in the air;

[0019] (2) Use a lifting device to lift and lower the second section of the static drilled rooted pile, and keep the verticality during the lowering process. At the same time, pass the sinker through the second section of the static drilled rooted pile. After passing through the bottom, connect the sinker to the prestressed wire at the top of the first section of the static drilled rooted pile at the bottom, reel in and pull the prestressed wire, move it upward and pass it through the hole of the second section of the static drilled rooted pile. In this way, pass the prestressed wire from the bottom to the upper pile;

[0020] (3) The lower end of the second section of the static drill root pile is welded and assembled with the upper end of the first section of the static drill root pile, and then the static drill root pile is lowered while ensuring verticality, and finally the upper end of the static drill root pile is retained and fixed on the vertical correction mechanism to be suspended in the air;

[0021] (4) Repeat steps (1) to (3) until the static drill root piles are implanted to the required depth, completing the construction process.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. By setting a hanging rope hook mechanism on the self-balancing hoisting equipment, the hanging rope and the pendant connected to the lowest end of the hanging rope are passed through the middle channel of the upper pile, and the pendant is connected to the prestressed wire on the top of the lower pile buried underground. In this way, the problem that the wire in the pile hole of the lower pile is difficult to pass through the hole of the upper pile is easily solved, thereby improving the construction process;

[0024] 2. The support column is equipped with multiple sensors for detecting whether the pipe pile is parallel to the support column. Since the support column is vertically arranged, the support column is used as a reference to determine whether the pipe pile is in a vertical state. In conjunction with the vertical correction mechanism, the verticality of the pipe pile can be accurately controlled;

[0025] 3. A vertical correction mechanism is set up, and the positioning support frame is set up on the upper part of the foundation pit. The positioning support frame is provided with a support unit, which helps to effectively control the verticality of the static drill root pile construction from the outside and solve the problem of verticality control when connecting multiple sections of static drill root piles.

[0026] 4. The hanging rope, pendant and lifting cable are all automatically controlled by a driving mechanism (such as a motor), which is simple and convenient to operate and easy to construct.

[0027] 5. The hanging rope is made of hemp rope, which is not easy to knot and is corrosion-resistant. The pendant is a plumb bob with a connecting hole for easy connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the self-balancing static drilling root pile hoisting and threading device of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the support column;

[0030] Figure 3 It is a schematic diagram of the local structure of the suspension rope hook mechanism. DETAILED DESCRIPTION

[0031] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 , a self-balancing static drilling root pile hoisting and threading device, comprising:

[0033] The self-balancing lifting device is used for lifting the pipe pile 7, comprising a base 1 and a support column 13 vertically mounted on the base 1, a lifting bracket is provided at the upper end of the support column 13, a lifting pulley block 4 is provided on the lifting bracket, a lifting cable 3 is wound around the lifting pulley block 4, and a first driving mechanism 2 for winding up the lifting cable 3 is provided on the base 1; a plurality of sensors for detecting whether the pipe pile 7 is parallel to the support column 13 are provided on the support column 13; Figure 2 The support column 13 is provided with three upper, middle and lower X-direction distance sensors 14 for measuring the distance between the support column 13 and the pipe pile 7; the support column 13 is provided with three upper, middle and lower L-shaped plates 15, and the free end of each L-shaped plate is provided with a Y-direction distance sensor 16 for measuring the distance between the free end and the pipe pile 7. A reinforcing connecting rod 12 is provided between the middle of the support column 13 and the base 1. The bottom end of the support column 13 is hinged to the front end of the base 1, and a level 11 is provided on the top or bottom surface of the support column 13.

[0034] The hanging rope hook mechanism is installed on the hanging bracket, such as Figure 2 As shown, it includes a suspension rope pulley 5, a hanging rope 6 arranged on the suspension rope pulley 5, and a pendant 10 connected to the lowermost end of the hanging rope 6. The suspension rope pulley 5 is connected to the second driving mechanism and can be wound around the suspension rope pulley 5 to rise or fall under the action of the second driving mechanism; the hanging rope 6 is made of hemp rope, the pendant 10 is a plumb bob, and a connecting hole is arranged on the plumb bob, and the pendant 10 passes through the middle channel of the hoisted pipe pile 7.

[0035] The vertical correction mechanism is arranged at the upper part of the foundation pit, and includes a positioning support frame 8, on which a support unit 9 for adjusting the pipe pile 7 is arranged. The support unit 9 is composed of a plurality of telescopic hydraulic cylinders, which are arranged around the axial direction of the pipe pile 7 at equal intervals. The telescopic ends of the telescopic hydraulic cylinders are arranged in the horizontal direction, perpendicular to the axial direction of the static drill root pile, and pressed against the side wall of the static drill root pile.

[0036] The first driving mechanism 2 and the second driving mechanism are both driving motors. The second driving mechanism is installed on the hanging bracket and connected to the external control device through a control line for remotely controlling the movement of the motor.

[0037] The construction process includes the following steps:

[0038] (1) The first section of the static drill rooted pile is lifted by a self-balancing lifting device and lowered into the foundation pit. During the lowering process, the sensor on the support column 13 is used to detect whether the static drill rooted pile is in a vertical state. After the end of the first section of the static drill rooted pile is extended into the vertical correction mechanism, if the static drill rooted pile is not vertical, the vertical correction mechanism is used to adjust it, and the first section of the static drill rooted pile is vertically sent into the foundation pit, and its upper end extends out of the foundation pit and is fixed on the vertical correction mechanism to be suspended in the air;

[0039] (2) Use a lifting device to lift and lower the second section of the static drilled rooted pile, and keep the verticality during the lowering process. At the same time, pass the sinker 10 through the second section of the static drilled rooted pile. After passing through the bottom, connect the sinker 10 to the prestressed wire at the top of the first section of the static drilled rooted pile at the bottom, reel in and pull the prestressed wire, move it upward and pass it through the hole of the second section of the static drilled rooted pile. In this way, pass the prestressed wire from the bottom to the upper pile;

[0040] (3) The lower end of the second section of the static drill root pile is welded and assembled with the upper end of the first section of the static drill root pile, and then the static drill root pile is lowered while ensuring verticality, and finally the upper end of the static drill root pile is retained and fixed on the vertical correction mechanism to be suspended in the air;

[0041] (4) Repeat steps (1) to (3) until the static drill root piles are implanted to the required depth, completing the construction process.

[0042] The present invention provides a hanging rope hook mechanism on the self-balancing hoisting equipment, and after the hanging rope and the pendant connected to the lowermost end of the hanging rope pass through the middle channel of the upper pile, the pendant is connected to the prestressed wire on the top of the lower pile buried underground. In this way, the problem that the wire in the pile hole of the lower pile is difficult to pass through the hole of the upper pile is easily solved, thereby improving the construction process; a plurality of sensors for detecting whether the pipe pile is parallel to the supporting column are provided on the supporting column, and since the supporting column is vertically arranged, the pipe pile is determined to be in a vertical state by taking the supporting column as a reference, and in cooperation with the vertical correction mechanism, the verticality of the pipe pile can be accurately controlled; a vertical correction mechanism is provided, and a positioning support frame is arranged on the upper part of the foundation pit, and the positioning support frame is provided with a support unit, which is helpful to effectively control the verticality control of the static drill rooted pile construction from the outside, and solves the verticality control problem when multiple static drill rooted piles are connected; the hanging rope, the pendant and the lifting cable are all automatically controlled by a driving motor, and the operation is simple and convenient, which is convenient for construction.

[0043] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A self-balancing static drilling root pile hoisting and threading device, characterized in that: include: A self-balancing lifting device, used for lifting a pipe pile (7), comprises: a base (1) and a support column (13) vertically mounted on the base (1); a lifting bracket is provided at the upper end of the support column (13); a lifting pulley block (4) is provided on the lifting bracket; a lifting cable (3) is wound around the lifting pulley block (4); a first driving mechanism (2) for winding up the lifting cable (3) is provided on the base (1); and a plurality of sensors for detecting whether the pipe pile (7) is parallel to the support column (13); A hanging rope hook mechanism is installed on the hanging bracket, comprising: a hanging rope pulley (5), a hanging rope (6) arranged on the hanging rope pulley (5), and a pendant (10) connected to the lowermost end of the hanging rope (6); the hanging rope pulley (5) is connected to the second driving mechanism and can be wound around the hanging rope pulley (5) under the action of the second driving mechanism to ascend or descend; The pendant (10) passes through the middle hole of the hoisted pipe pile (7); The bottom end of the support column (13) is hinged to the front end of the base (1), and a level (11) is provided on the top surface or the bottom surface of the support column (13); The support column (13) is provided with three X-direction distance sensors (14) at the top, middle and bottom for measuring the distance between the support column (13) and the pipe pile (7); The support column (13) is provided with three L-shaped plates (15) at the top, the middle and the bottom, and the free end of each L-shaped plate is provided with a Y-direction distance sensor (16) for measuring the distance between the free end and the pipe pile (7); It also includes a vertical correction mechanism arranged at the top of the foundation pit, including a positioning support frame (8), wherein a support unit (9) for adjusting the pipe pile (7) is provided on the positioning support frame (8); The support unit (9) is composed of a plurality of telescopic hydraulic cylinders, and the plurality of telescopic hydraulic cylinders are arranged around the axial direction of the pipe pile (7) at equal intervals; The telescopic ends of the telescopic hydraulic cylinder are arranged in the horizontal direction and are perpendicular to the axial direction of the static drilling root-planting pile, and are pressed against the side wall of the static drilling root-planting pile.

2. A self-balancing static drilling root pile hoisting and threading device according to claim 1, characterized in that: A reinforcing connecting rod (12) is provided between the middle portion of the support column (13) and the base (1).

3. The self-balancing static drilling root pile hoisting and threading device according to claim 1 is characterized in that: The first drive mechanism (2) and the second drive mechanism are both drive motors, and the second drive mechanism is mounted on the hanging bracket.

4. The self-balancing static drilling root pile hoisting and threading device according to claim 1 is characterized in that: The hanging rope (6) is a hemp rope, the pendant (10) is a plumb bob, and a connecting hole is provided on the plumb bob.

5. A construction method for the self-balancing static drilling root pile hoisting and threading device according to claim 1, characterized in that: The steps include: (1) The first section of the static drill rooted pile is lifted by a self-balancing lifting device and lowered into the foundation pit. During the lowering process, a sensor on the support column (13) is used to detect whether the static drill rooted pile is in a vertical state. After the end of the first section of the static drill rooted pile is extended into the vertical correction mechanism, if the static drill rooted pile is not vertical, the vertical correction mechanism is used to adjust the static drill rooted pile. The first section of the static drill rooted pile is vertically sent into the foundation pit, and its upper end extends out of the foundation pit and is fixed on the vertical correction mechanism to be suspended in the air; (2) The second section of the static drilled rooted pile is lifted and lowered by a lifting device, and the verticality is maintained during the lowering process. At the same time, the sinker (10) is passed through the second section of the static drilled rooted pile. After passing through the bottom, the sinker (10) is connected to the prestressed wire at the top of the first section of the static drilled rooted pile at the bottom, and the prestressed wire is rolled up and pulled, and moved upward and passed through the hole of the second section of the static drilled rooted pile. In this way, the prestressed wire is passed from the first section of the static drilled rooted pile at the bottom to the second section of the static drilled rooted pile at the top; (3) The lower end of the second section of the static drill root pile is welded and assembled with the upper end of the first section of the static drill root pile, and then the static drill root pile is lowered while ensuring the verticality, and finally the upper end of the static drill root pile is retained and fixed on the vertical correction mechanism to be suspended in the air; (4) Repeat steps (1) to (3) until the static drill root piles are implanted to the required depth, completing the construction process.

Images