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Slurry wall protection construction method for bored pile

A technology of bored cast-in-place piles and construction methods, which is applied to sheet pile walls, infrastructure engineering, construction, etc. The effect of pile hole deflection and simple operation

Inactive Publication Date: 2014-10-29
杨哲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The purpose of the present invention is to provide a construction method for bored cast-in-situ piles with mud retaining walls in view of the deficiencies in the prior art. Cast-in-situ pile project with mud retaining walls in soft and hard soil layers with high groundwater level in civil buildings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: A construction method for bored piles with mud wall protection, comprising the following steps:

[0020] (1) Pile hole positioning: Before construction, according to the axis of the pile, draw the cross center line of each pile position, and nail the center line to the wooden pile near the pile hole with small nails. The deviation of the pile position is controlled within 10mm, and The stakes are firmly laid with eye-catching marks;

[0021] (2) Embedding of the casing: the position of the casing is buried accurately and stably, the gap between the casing and the pit wall is filled with clay, the drainage port of the casing is connected with the mud ditch, and the deviation between the center line of the casing and the pile position line is not greater than 50mm , the casing is buried in the cohesive soil to a depth of 1.0m, and the upper opening of the casing is 100-200mm above the ground, so as to prevent the mud surface from floating up and down, and the ...

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PUM

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Abstract

The invention discloses a slurry wall protection construction method for a bored pile. The slurry wall protection construction method includes the following steps that step 1, a pile hole is positioned; step 2, a pile casing is buried; step 3, a drilling machine is in place; step 4, qualified slurry is prepared; step 5, hole forming and hole clearing are performed; step 6, a steel reinforcement cage is lifted for placing; step 7, underwater concrete is cast. According to the slurry wall protection construction method for the bored pile, operation is easy, the problems that the pile hole deviates, and pile body concrete is mixed with slurry are solved, and the construction method is suitable for slurry wall protection hole forming bored pile engineering of soft and hard soil layers high in underground water level in industrial and civil buildings.

Description

technical field [0001] The invention relates to a construction method for bored piles with mud wall protection, and belongs to the technical field of building construction. Background technique [0002] The cast-in-situ pile system refers to the pile holes formed in the foundation soil by means of mechanical drilling, steel pipe extrusion or manual excavation on the project site, and piles made by placing steel cages and pouring concrete in them, depending on the method of hole formation. , Cast-in-situ piles can be divided into several categories such as immersed tube piles, bored piles and hole-dug piles. Bored pile is a pile type defined according to the classification of pile forming methods. [0003] The construction of bored cast-in-place piles, because of the difference in the formation of the selected retaining wall, has two types of mud retaining wall construction method and full casing construction method. The existing mud retaining wall bored cast-in-place pile c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/38
Inventor 杨哲
Owner 杨哲
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