A static drill root pile hoisting and threading device and construction method thereof

Abstract

The present invention relates to a static drill root pile hoisting and threading device, comprising: a self-balancing sling for hoisting pipe piles; a hoisting rope hook assembly, which is installed on the self-balancing sling, and comprises: a first pulley, a hanging rope arranged on the first pulley, and a pendant connected to the lowermost end of the hanging rope; the first pulley is connected to a first driving mechanism, and can be rolled up around the first pulley under the action of the first driving mechanism to be raised or lowered; the pendant passes through the middle hole of the hoisted pipe pile. When in use, the upper section pile is hoisted, and the pendant passes through the middle hole of the upper section pile from the upper section pile. After passing through the bottom of the upper section pile, the pendant is connected to the prestressed wire at the top of the lower section pile buried underground, and the first pulley is rolled up to drive the lower prestressed wire to move up and pass through the hole of the upper section 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 section pile is difficult to pass through the hole of the upper section pile, thereby greatly improving the construction process.

Description

Technical Field

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

[0002] During the construction of static drilled rooted pile test piles, it is often necessary to pre-embed stress wires inside the pipe piles. Since a single pile is generally welded and assembled from two or more pipe piles, during the hoisting process, the stress wire is set in the lowest pile hole and then 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. This seriously hinders the construction process of the drilled rooted pile test piles and reduces the production effect. Summary of the invention

[0003] The purpose of the present invention is to provide a static drill 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 static drill root pile hoisting and threading device, comprising:

[0006] Self-balancing sling for lifting pipe piles;

[0007] A hanging rope hook assembly is installed on the self-balancing sling, comprising: a first pulley, a hanging rope arranged on the first pulley, and a pendant connected to the lower end of the hanging rope;

[0008] The first pulley is connected to the first driving mechanism, and can be wound around the first pulley to ascend or descend under the action of the first driving mechanism;

[0009] The pendant passes through the middle hole of the hoisted pipe pile.

[0010] When in use, the upper pile section is lifted, and the plumb part passes through the middle hole of the upper pile section. After passing through the bottom of the upper pile section, the plumb part is connected to the prestressed wire on the top of the lower pile section that has been buried underground. The first pulley is reeled in, driving the lower prestressed wire to move upward and pass through the hole of the upper pile section, and straighten it. After that, the upper and lower pile sections are welded and assembled to complete the lifting of the static drill root pile.

[0011] Furthermore, the self-balancing sling comprises a support column, a support frame installed on the support column, and a movable lifting mechanism installed on the support frame.

[0012] Furthermore, the movable lifting mechanism includes a movable bracket, the upper end of which is mounted on a linear slide rail provided on the support frame, the mobile bracket is connected to a second driving mechanism for driving its movement, one end of the second driving mechanism is fixedly mounted on the support column, and the mobile bracket can be adjusted in position under the action of the second driving mechanism.

[0013] Furthermore, the second driving mechanism is a servo motor or a cylinder.

[0014] Furthermore, a second pulley is arranged on the movable bracket, the second pulley is connected to a third driving mechanism, a lifting cable is arranged on the second pulley, and under the action of the third driving mechanism, the lifting cable can be wound around the second pulley to ascend or descend.

[0015] Furthermore, the third driving mechanism is a driving motor, which is connected to an external control device via a control line and is used to remotely control the movement of the motor.

[0016] Furthermore, the first pulley and the second pulley are arranged on the same side of the movable bracket.

[0017] Furthermore, the first driving mechanism is a driving motor, which is also connected to an external control device via a control line for remotely controlling the movement of the motor.

[0018] Furthermore, the hanging rope is a hemp rope, the pendant is a plumb bob, and a connecting hole is provided on the plumb bob.

[0019] The construction method of the static drill root pile hoisting and threading device is specifically as follows: when lifting the upper section pile, the plumb piece is passed through the upper section pile, and after passing through the bottom of the upper section pile, the plumb piece is connected to the prestressed wire at the top of the lower section pile that has been buried underground, and the lower prestressed wire is rolled up and pulled to move upward and pass through the hole of the upper section pile, and then the upper and lower section piles are welded and assembled, and then the welded upper and lower section piles are lowered, the plumb piece and the prestressed wire are untied, and the above actions are repeated until a predetermined depth is reached.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. By setting a hanging rope hook assembly on the self-balancing sling, 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 (this step is performed by the operator standing on the ground). 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;

[0022] 2. A movable lifting mechanism is provided on the support frame, which can be adjusted to facilitate accurate alignment of the upper and lower piles, and help ensure the verticality of welding;

[0023] 3. 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.

[0024] 4. The hanging rope is made of hemp rope, which is not easy to knot and is corrosion-resistant. The pendant is a plumb bob and a connecting hole is set for easy connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the static drill root pile hoisting and threading device of the present invention. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 A static drill root pile lifting and threading device includes: a self-balancing sling for lifting pipe piles, the self-balancing sling includes a support column 1, a support frame 3 installed on the support column 1, and a movable lifting mechanism installed on the support frame 3, the movable lifting mechanism includes a mobile bracket 2, the upper end of the mobile bracket 2 is installed on a linear slide rail 4 provided on the support frame 3, the mobile bracket 2 is connected to a second driving mechanism 13 for driving its movement, one end of the second driving mechanism is fixedly installed on the support column 1, the mobile bracket 2 can be adjusted in position under the action of the second driving mechanism 13, and the second driving mechanism is a cylinder. A second pulley 5 is arranged on the mobile bracket 2, the second pulley 5 is connected to a third driving mechanism, and a lifting cable 6 is arranged on the second pulley 5. Under the action of the third driving mechanism, the lifting cable 6 can be wound around the second pulley 5 to rise or fall. The third driving mechanism is a driving motor, which is connected to an external control device through a control line and is used to remotely control the action of the motor.

[0028] The sling hook assembly is installed on the self-balancing sling, and includes: a first pulley 12, a sling 11 arranged on the first pulley 12, and a pendant 10 connected to the lower end of the sling 11; the sling 11 is made of hemp rope, the pendant 10 is a plumb bob, and a connecting hole is arranged on the plumb bob. The first pulley 12 is connected to the first driving mechanism, and can be wound around the first pulley 12 to rise or fall under the action of the first driving mechanism; the pendant 10 passes through the middle channel of the hoisted pipe pile. The first pulley 12 is arranged on the same side as the second pulley 5 on the mobile bracket 2. The first driving mechanism is a driving motor, which is also connected to the external control device through a control line for remotely controlling the action of the motor.

[0029] During the specific construction of the static drill root pile hoisting and threading device, the specific method is that when lifting the upper section pile 7, the sinker 10 is passed through the upper section pile 7, and after passing through the bottom of the upper section pile 7, the sinker 10 is connected to the prestressed wire 9 on the top of the lower section pile 8 that has been buried underground, and the lower prestressed wire 9 is rolled up and pulled to move upward and pass through the hole of the upper section pile 7, and then the upper and lower section piles 8 are welded and assembled, and then the welded upper and lower section piles 8 are continued to be lowered, the sinker 10 is untied from the prestressed wire 9, and the above actions are repeated until the predetermined depth is reached.

[0030] The present invention arranges a hanging rope hook assembly on the self-balancing sling, and after the hanging rope and the pendant connected to the lowermost end of the hanging rope pass through the middle hole of the upper pile, the pendant is connected to the prestressed wire on the top of the lower pile that has been buried underground (this step is performed by an operator standing on the ground). 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 movable lifting mechanism is arranged on the support frame, which can be adjusted in position, so as to facilitate the precise alignment of the upper and lower piles, and help to ensure the verticality of the welding.

[0031] 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 static drill root pile hoisting and threading device, characterized in that: include: Self-balancing sling for lifting pipe piles; A hanging rope hook assembly is installed on the self-balancing sling, comprising: a first pulley (12), a hanging rope (11) arranged on the first pulley (12), and a pendant (10) connected to the lower end of the hanging rope (11); The first pulley (12) is connected to a first driving mechanism, and under the action of the first driving mechanism, the hanging rope (11) can be wound around the first pulley (12) to ascend or descend; The pendant (10) passes through the middle hole of the hoisted pipe pile; The self-balancing sling comprises a support column (1), a support frame (3) mounted on the support column (1), and a movable lifting mechanism mounted on the support frame (3); The first driving mechanism is a driving motor; When lifting the upper pile section (7), the sinker (10) is passed through the upper pile section (7). After passing through the bottom of the upper pile section (7), the sinker (10) is connected to the prestressed conductor (9) at the top of the lower pile section (8) that has been buried underground, and the lower prestressed conductor (9) is rolled up and pulled upward and passed through the hole of the upper pile section (7). The upper and lower pile sections are then welded and assembled, and the welded upper and lower pile sections are lowered. The sinker (10) and the prestressed conductor (9) are untied, and the above-mentioned actions are repeated until a predetermined depth is reached; The movable lifting mechanism comprises a movable bracket (2), the upper end of the movable bracket (2) being mounted on a linear slide rail (4) provided on the support frame (3), the movable bracket (2) being connected to a second driving mechanism (13) for driving the movable bracket (2) to move, one end of the second driving mechanism being fixedly mounted on the support column (1); A second pulley (5) is provided on the mobile support (2), the second pulley (5) is connected to a third driving mechanism, a lifting cable (6) is provided on the second pulley (5), and under the action of the third driving mechanism, the lifting cable (6) can be wound around the second pulley (5) to ascend or descend; The first pulley (12) and the second pulley (5) are arranged on the same side of the movable bracket (2); The hanging rope (11) is a hemp rope, the pendant (10) is a plumb bob, and a connecting hole is provided on the plumb bob.

2. A static drilling root pile hoisting and threading device according to claim 1, characterized in that: The second driving mechanism is a servo motor or a cylinder.

3. The static drilling root pile hoisting and threading device according to claim 1 is characterized in that: The third driving mechanism is a driving motor.

4. A construction method for the static drilling root pile hoisting and threading device according to claim 1, characterized in that: When lifting the upper pile section (7), the sinker (10) is passed through the upper pile section (7). After passing through the bottom of the upper pile section (7), the sinker (10) is connected to the prestressed conductor (9) at the top of the lower pile section (8) that has been buried underground. The lower prestressed conductor (9) is rolled up and pulled upward and passed through the hole of the upper pile section (7). The upper and lower pile sections are then welded and assembled. The welded upper and lower pile sections are then lowered. The sinker (10) is untied from the prestressed conductor (9). The above-mentioned actions are repeated until a predetermined depth is reached.

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