Pump suction reverse circulation pile foundation construction device and method

A pump suction reverse circulation and construction device technology, which is applied in infrastructure engineering, sheet pile walls, earthwork drilling and other directions, can solve the problems of low hole forming efficiency, large power consumption, and the need to seal the pump suction loop. The effect of shortening the pumping loop, increasing the suction and reducing the power

Active Publication Date: 2015-05-20
SHANGHAI MECHANIZED CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a pump suction reverse circulation pile foundation construction device and method with high hole-forming efficiency, good pile-forming quality, energy saving and power saving, so as to

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  • Pump suction reverse circulation pile foundation construction device and method
  • Pump suction reverse circulation pile foundation construction device and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Combine below figure 2 The pump suction reverse circulation pile foundation construction device of the present invention will be described in detail.

[0031] A pump-suction reverse-circulation pile foundation construction device, which is suitable for the construction of bored piles in deep silty soil, including a rotary drilling rig 1, a reverse-circulation gravel pump 2, a slag suction hose 3, Mud purification device 4, sedimentation tank 5 and circulation tank 6; rotary drilling rig 1 includes drill bit 10, drill pipe 11, transmission rod 12, rotary disc 13, hydraulic motor 14 and base 15 arranged on the top of the pile foundation. The through hole for the transmission rod 12 to pass through, the hydraulic motor 14 is arranged on the base 15, the bottom end of the drill bit 10 and the drill rod 11 are fixedly connected by a flange, and the top end of the drill rod 11 and the bottom end of the transmission rod 12 are fixed by a flange connection, the top of the tra...

Embodiment 2

[0035] Continue to combine below figure 2 The method of using the pump suction reverse circulation construction device to carry out bored pile foundation construction is described in detail. The construction method of bored pile foundation comprises the following steps:

[0036] Step 1. Provide a pump suction reverse circulation pile foundation construction device, make preparations for commissioning, and set up a mud circulation system at the same time.

[0037] The pump suction reverse circulation pile foundation construction device includes a rotary drilling rig 1, a reverse circulation gravel pump 2, a slag suction hose 3, a mud purification device 4, a sedimentation tank 5 and a circulation tank 6 connected in sequence; the rotary drilling rig 1 includes a drill bit 10, a drill Rod 11, transmission rod 12, rotating disk 13, hydraulic motor 14 and the base 15 that is arranged on the pile foundation top, the base 15 is provided with the through hole that passes through fo...

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Abstract

The invention discloses a pump suction reverse circulation pile foundation construction device and method and belongs to the technical field of pile foundation construction. The pump suction reverse circulation pile foundation construction device comprises a rotary drilling rig, a reverse circulation gravel pump, a slag suction hose, a mud purification device, a settling pond and a circulating pool which are communicated in sequence; the rotary drilling rig comprises a drill bit, a drill pipe, a transmission rod, a rotating disk and a hydraulic motor, the drill bit is connected with a bottom flange of the drill pipe, the top end of the drill pipe is connected with a bottom flange of the transmission rod, the top end of the transmission rod penetrates through the rotating disk and is fixed, the top end of the transmission rod is connected with one side of the reverse circulation gravel pump through a swiveling union, the joint of the reverse circulation gravel pump and the slag suction hose is provided with a faucet, and the slag suction hose is fixedly connected with the faucet and the mud purification device. The construction method includes the first step of forming reverse circulation, the second step of starting drilling after reverse circulation is formed until a pile hole is formed and the third step of conducting hole cleaning construction after the pile hole is formed. The device reduces the power of the gravel pump and improves hole forming efficiency.

Description

technical field [0001] The invention belongs to the technical field of pile foundation construction, and in particular relates to a pump suction reverse circulation pile foundation construction device and method. Background technique [0002] Bored cast-in-situ piles are generally formed by mechanical drilling to form pile holes in the foundation, and then placing steel cages in the pile holes and pouring concrete. However, bored cast-in-situ pile foundations are prone to hole collapse and necking during the construction of silt layer, and high sand content will also affect the quality of piles. In the traditional technology, the hole-forming method of rotary drilling and positive circulation is used for hole-forming construction. Such as figure 1 Shown is the construction principle diagram of the positive circulation drilled cast-in-place pile in the traditional process. In the figure, ①-sand pump, ②-faucet, ③-hollow drill pipe, ④-drilling rig rotary device, ⑤-sedimentati...

Claims

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Application Information

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IPC IPC(8): E02D5/36E21B21/00
Inventor 薄晓峰蔡怡众姜晔
Owner SHANGHAI MECHANIZED CONSTR GRP
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