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Pile foundation construction technology of bored cast-in-place pile

A technology of bored piles and construction technology, which is applied in the direction of foundation structure engineering, sheet pile walls, buildings, etc., and can solve problems that affect construction, reduce the level of resistance to natural disasters of bridge piers and bridge abutments, and cannot ensure the service life of bridge projects, etc. , to achieve the effect of strict quality and high construction precision requirements

Inactive Publication Date: 2019-06-07
浙江九华建设有限公司
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AI Technical Summary

Problems solved by technology

[0002] Bridges provide the necessary conditions for the development of modern high-speed transportation. Bridge construction includes five parts, among which the pile foundation is the cornerstone of the bridge. If the bridge pile foundation is not laid well during construction, it will affect the later construction of the bridge project, and Reducing the level of resistance to natural disasters of piers and abutments cannot ensure that the bridge project will reach its service life

Method used

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  • Pile foundation construction technology of bored cast-in-place pile

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Embodiment Construction

[0017] A kind of pile foundation construction technique of bored cast-in-situ pile, comprises following technological process: step 1, survey and locate; The data error provided by the drawing is within the closure difference allowed by the specification, and can be used. At the same time, the protection work of the axis control point is done well, and the branch line points are guided to be protected, and then the bridge is staked out. (2) Use the total station and theodolite respectively Measure the centerlines of two adjacent bridge piers, nail the drilled pile positions on the water platform and do a good job of pile position protection control points and elevation measurement work, and set temporary benchmarking points. (3) The pile position measurement must be done sequentially Measure three times, measure once before digging and burying the casing and make a cross protection pile; retest once after burying the casing, and mark the pile position, then measure the elevatio...

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Abstract

The invention discloses a pile foundation construction technology of a bored cast-in-place pile. The pile foundation construction technology of the bored cast-in-place pile includes the following technological processes of measurement and positioning, drilling machine platform erection, protective cylinder burying, drilling machine positioning, slurry preparation, drilling, first hole cleaning, manufacture and installation of reinforcing cages, placement of conduits, second hole cleaning, underwater concrete pouring and size and strain detection. According to the pile foundation construction technology of the bored cast-in-place pile, the construction steps of the bridge pile foundation are completed in detail and comprehensively, the bridge construction is a large-scale project and requires high construction accuracy and strict quality, therefore, the pile foundation construction technology can improve the resistance grade of the bridge pile foundation to natural disasters such as earthquakes and hurricanes, and it is ensured that the bridge engineering achieves a setting service life period.

Description

technical field [0001] The invention relates to a pile foundation construction technology of bored piles. Background technique [0002] Bridges provide the necessary conditions for the development of modern high-speed transportation. Bridge construction includes five parts, among which the pile foundation is the cornerstone of the bridge. If the bridge pile foundation is not laid well during construction, it will affect the later construction of the bridge project, and Reducing the level of resistance to natural disasters of piers and abutments will not ensure that the bridge project will reach its service life. Contents of the invention [0003] The invention aims at the deficiencies of the prior art, and provides a pile foundation construction technology of bored cast-in-place piles for improving the bridge pile foundation's resistance to natural disasters. [0004] In order to solve the above technical problems, the present invention is solved through the following tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/36E02D15/04
Inventor 陈斌
Owner 浙江九华建设有限公司
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