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Construction method for forming pile through rotary digging of pile casing

A construction method and pile-forming technology, which is applied to sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of high safety risks, complex construction procedures, and slow construction speed of manual hole-digging piles, and achieve easy-to-operate construction procedures, The effect of fast construction speed and simple construction process

Inactive Publication Date: 2017-06-13
CHONGQING CONSTR RESIDENTIAL ENG +2
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Problems solved by technology

In the pile foundation construction in the high backfill soil layer, the use of manual excavation piles has a high safety risk; the use of conventional rotary drilling rigs for construction, there are various quality problems caused by hole collapse and other reasons during the construction process; the use of concrete pre-filling method Excavation construction, the construction process is complicated, the construction speed is slow, and the cost is high

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  • Construction method for forming pile through rotary digging of pile casing
  • Construction method for forming pile through rotary digging of pile casing

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Embodiment Construction

[0017] In order to make the technical means, creative features, goals and functions achieved by the present invention clearer and easier to understand, the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments:

[0018] The present invention proposes a casing rotary excavation pile construction method, which is characterized in that it includes the following construction process:

[0019] 1) The site is leveled; before construction, the site should be leveled strictly to ensure smooth drainage and clear ground and underground obstacles within the scope of rotary excavation;

[0020] 2) Setting out positioning; setting out the position of the pile foundation according to the principle of from the whole to the local area. When planning the driving route, keep the distance between the sidewalk and the drilling position not less than 3 meters, so as not to affect the stability of the hole wall; The location of the...

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Abstract

The invention provides a construction method for forming a pile through rotary digging of a pile casing. The construction method comprises the following construction processes of site leveling, pay-off locating, drilling machine placement, soil drilling, steel casing construction, further soil drilling, rock stratum drilling, sediment cleaning, pore-forming acceptance check, drilling machine displacement, reinforcement cage installation, conduit installation, concrete pouring, pile casing lifting while pouring, pulling out of the pile casing after pouring, and pile inspection. By adopting fully mechanized construction, the construction method has the advantages of being high in construction speed, low in construction cost, safe, reliable and stale in quality.

Description

technical field [0001] The invention relates to a construction method, in particular to a construction method of rotary excavation of a casing to form piles. Background technique [0002] In view of this situation, Chongqing urgently needs a well-developed rotary excavation construction technology that can improve construction efficiency, ensure construction quality, and avoid construction accidents at this stage. In the pile foundation construction in the high backfill soil layer, the use of manual excavation piles has a high safety risk; the use of conventional rotary drilling rigs for construction, there are various quality problems caused by hole collapse and other reasons during the construction process; the use of concrete pre-filling method Excavation construction, the construction process is complex, the construction speed is slow, and the cost is high. Contents of the invention [0003] The problem to be solved by the present invention is to provide a casing rota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/38
CPCE02D5/385
Inventor 张纯洁李海涛周尚永陈怡宏张意叶龙黄乐鹏
Owner CHONGQING CONSTR RESIDENTIAL ENG
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