Foundation pile hole drilling construction process

A construction technology and foundation pile technology, which is applied in the direction of foundation structure engineering, drilling equipment and methods, sheet pile walls, etc., can solve the problems of diameter reduction, hole collapse, and shorten the construction time of foundation engineering, so as to reduce the cost of hole formation, The effect of shortening the construction period and excellent hole quality

Inactive Publication Date: 2014-11-12
LUOYANG GUANGXIN CONSTR GRP
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of frequent accidents such as diameter shrinkage and hole collapse during the construction of bored piles, the present invention proposes a foundation pile drilling construction technology, which shortens the construction time of the foundation project, reduces the construction period pressure of the substructure, and Reduce part of the manpower, equipment and material input, thereby reducing the total construction cost of the project

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with specific embodiments. The technological process of the construction method is construction preparation→leveling the site→pile position lofting→burying the casing→drilling rig in place→drilling→clearing the hole→checking the quality of the hole→lowering the reinforcement cage, Conduit → downpipe → secondary hole cleaning → underwater concrete pouring → pulling out the casing → pile quality inspection.

[0015] 1. Construction preparation

[0016] (1) Site, access road and water and electricity consumption

[0017] According to the site conditions, do a good job of leveling the construction site. Build construction access roads to ensure smooth passage for drilling rigs and other vehicles. Have generators ready in case of emergencies. Lead construction water to the construction site according to local actual conditions. Arrange mud pools and sedimentation tanks within the scope of the site for s...

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Abstract

The invention discloses a foundation pile hole drilling construction process, which comprises the following technical flow processes of construction preparation, field flattening, pile position lofting, protection tube burying, drilling machine place taking, drilling, hole cleaning, hole forming quality checking, steel bar cage and catheter mounting, catheter mounting, secondary hole cleaning, underwater concrete filling, protection tube pulling and removing and pile forming quality checking. The foundation pile hole drilling construction process has the advantages that the construction time of the foundation engineering is shortened, the construction period pressure of a lower part structure is reduced, and in addition, a part of labor, machine and material investment is reduced, so the total construction cost of the project is reduced.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a drilling construction technique of a rotary drilling rig for pile foundations in soft geological layers. Background technique [0002] The alluvial plain of the Yangtze River is a geological belt of soft strata such as muddy clay, silt sand, fine sand, and gravel sand. Affected by the water level of the river, accidents such as diameter shrinkage and hole collapse are very likely to occur during the construction of bored piles. During the flood season, the rise of the groundwater level is even more unfavorable to the drilling construction. Contents of the invention [0003] In order to solve the problems of frequent accidents such as diameter shrinkage and hole collapse during the construction of bored piles, the present invention proposes a foundation pile drilling construction technology, which shortens the construction time of the foundation project, reduces the constru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/36E02D17/08E21B7/00
Inventor 蔡丽朋孟逵秦瑛李健郭江明刘国丽王惠琴李瑾
Owner LUOYANG GUANGXIN CONSTR GRP
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