Construction method for mucky soft soil roadbase tubular pile

A technology of silty soft soil and construction method, which is applied in the direction of infrastructure engineering, roads, roads, etc., can solve problems such as difficulty in controlling the construction quality of bridge head soft foundations, uneven settlement, etc., and achieve a wide range of design options and pile quality inspection Convenience and applicability

Inactive Publication Date: 2015-09-09
成军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method for mucky soft soil roadbed pipe piles which improves the problems of difficulty in controlling the construction quality of the soft foundation at the bridge head and uneven settlement after opening to traffic in the soft foundation treatment

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0038] A method for constructing pipe piles in silty soft soil subgrades, comprising the following steps:

[0039] (1) Preparation

[0040] For the temporary access roads used by the construction workers, the construction drainage measures should be taken well, and according to the number of stacked pairs of prestressed pipe piles, a number of open and flat sites close to the temporary access roads should be selected as temporary storage yards for pipe piles;

[0041] The hoisting method of the prestressed pipe pile is the two-support method or the hook-hook method at both ends, and it should be lifted lightly during the hoisting process, and the method of towing is prohibited; when transporting by car, use a long trailer, and the cantilever of the pile should not exceed 1.5m. When transported by car, it should be fastened, stacked in layers and misplaced, no more than 5 layers; when stacked on the construction site, a dense and flat site or a wooden support must be selected, ...

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PUM

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Abstract

The invention discloses a construction method for a mucky soft soil roadbase tubular pile. The construction method comprises the steps of preparatory work, construction for a roadbase soleplate, construction for a prestressed pipe pile, construction for a pile cap, construction for a cushion layer and the like. The construction method for the mucky soft soil roadbase tubular pile provides new thinking for governing differential settlement of a roadbase and solving bump at a bridge-head, freeway widening, etc. The problems of unmanageable construction quality of soft foundation at the bridge head in the soft foundation treatment and uneven settlement after being opening to traffic are solved.

Description

technical field [0001] The invention relates to a method for constructing pipe piles in silty soft soil subgrade. Background technique [0002] With the continuous development of municipal infrastructure construction, there are many effective construction techniques in the construction of municipal road engineering in soft soil. However, there are quite a lot of silty soft soil in coastal areas, and the silty soft soil layer is relatively thick, even exceeding 15 meters in some areas. For such a deep soft foundation road section, the stability of embankment filling is extremely poor, and it is difficult to achieve the ideal quality of the soft foundation after using traditional construction methods such as filling replacement, drainage board consolidation, powder spraying piles, cement mixing piles, etc. , the post-construction settlement and vehicle jumping of the soft foundation treatment section are very serious. Contents of the invention [0003] The purpose of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/04E02D5/58
Inventor 成军
Owner 成军
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