Long spiral cast-in-place pile construction process

A technology of long spiral cast-in-place piles and construction technology, which is applied to sheet pile walls, rotary drilling, rotary drilling rigs, etc. The effect of improving construction efficiency and not easy to collapse holes

Pending Publication Date: 2021-07-09
浙江省地矿建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Concrete needs to be pumped, which is more expensive than ordinary concrete;
[0004] 2. The reinforcement cage of the pile body needs a vibrating rear position, which is easy to deviate;
[0005] 3. Concrete transport vehicles need to wait on site, which wastes time and reduces work efficiency;
[0006] 4. After the long screw pile is holed, it needs to pour concrete and lower the reinforcement cage. The drilling rig cannot drill into the next pile position in time, and the work efficiency is low.

Method used

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Embodiment Construction

[0028] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained without paying creative labor without paying creative labor.

[0029] It is an object of the present invention to provide a long spiral infusion pile construction process to solve the problem of prior art, which reduces the construction cost of the perfusion pile and the total working time, and the work efficiency is improved.

[0030] In order to make the above objects, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Such as Figure 1 to 2 As shown: This embodi...

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Abstract

The invention discloses a long spiral cast-in-place pile construction process which includes the steps that step one, a long spiral pile machine is used for spirally and rotationally cutting a soil body downwards till a drill rod reaches a pile bottom elevation designed for construction; step two, prepared slurry is pumped through the drill rod of the long spiral pile machine, and the drill rod is lifted upwards while pumping the slurry till the bottom of the drill rod reaches the ground; step three, the long spiral pile machine moves, the steps are repeated, and hole-forming drilling process procedures of a next pile is carried out; and step four, a reinforcement cage is put down into a pile-formed hole where the slurry is pumped through a crane, and then concrete is poured to a pile top elevation of a construction design. According to the long spiral cast-in-place pile construction process, by pumping the prepared slurry into the pile-formed hole for protecting a wall, the pressure of surrounding soil is balanced, hole collapse is not likely to happen, the long spiral pile machine can continuously form holes, and the construction efficiency is greatly improved; the reinforcement cage is adjusted from a rear position to a front position, so that quality is guaranteed; and meanwhile, only common concrete is poured, so that cost is reduced, the multiple pile-formed holes can be poured together, and construction time is saved.

Description

Technical field [0001] The present invention relates to the technical field of infusion pile construction, and in particular, to a long spiral infusion pile construction process. Background technique [0002] At present, in the basic engineering of construction, water conservancy, highways, long spiral piles are widely used in the advantages of faster speed, low noise, low noise wall, and low construction costs. The existing pillar pile construction process is first, with the rig long spiral to rotate the cutting soil, the drill pipe reaches the design pile, and then pumped concrete from the middle of the drill rod, while pumping concrete one side. Upward drill rod until the top of the pile is reached, and the rear reinforcing cage is added to the reinforced cage of the pile, that is, complete a perfusion pile construction. However, there is the following defects during the entire construction process: [0003] 1. It is necessary to pump concrete, which is higher than ordinary co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/34E02D17/08E02D15/04E21B3/02E21B7/04
CPCE02D5/34E02D17/08E02D15/04E21B7/04E21B3/02
Inventor 田敬尚操海滨潘一奇李习坤赵明章勇黄廷鑫王茜
Owner 浙江省地矿建设有限公司
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