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Novel cement soil composite mixing pile and pile formation method thereof

A technology of cement-soil mixing pile and mixing pile, which is applied to sheet pile wall, construction, infrastructure engineering and other directions, can solve the problems of low pile strength and poor bearing capacity of pile foundation, and achieve good pile quality and pile foundation bearing capacity. High force, effect of changing material structure

Inactive Publication Date: 2011-11-23
岳建伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of cement-soil composite mixing pile and its pile-forming method, which is used to treat soft soil foundations with a natural water content of 45-90%, and overcome the low pile-forming strength of the current cement pile and the pile foundation bearing capacity. poor defect

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  • Novel cement soil composite mixing pile and pile formation method thereof
  • Novel cement soil composite mixing pile and pile formation method thereof

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Effect test

Embodiment 1

[0029] The new cement-soil composite mixing pile is composed of a variable-section cement-soil mixing pile and a square-edged reinforced concrete core pile. The small section of the core pile is inserted into the mixing pile along the center of the mixing pile section and closely matched with the mixing pile. The upper section of the cement-soil mixing pile is larger than the lower section, the total length of the pile is 12m, the diameter of the upper mixing pile is 700mm, and the length is 4m, and the diameter of the lower mixing pile is 500mm, and the length is 8m.

[0030] Among them, the variable cross-section modified cement-soil mixing pile is formed by uniformly mixing the undisturbed soil of the soft ground and the cement slurry injected with additives. The square-shaped reinforced concrete core pile is prefabricated by steel bars and concrete. The square side length of the upper section is 300mm, and the square side length of the lower section is 200mm. The length of ...

Embodiment 2

[0039] The new cement-soil composite mixing pile is composed of a variable-section cement-soil mixing pile and a square-edged reinforced concrete core pile. The small section of the core pile is inserted into the mixing pile along the center of the mixing pile section and closely matched with the mixing pile. The upper section of the cement-soil mixing pile is larger than the lower section, the total length of the pile is 18m, the diameter of the upper section of the mixing pile is 700mm, and the length is 9m, and the diameter of the lower section of the mixing pile is 500mm, and the length is 9m.

[0040]The variable cross-section modified cement-soil mixing pile is formed by uniformly mixing the undisturbed soil of the soft ground and the cement slurry injected with additives. The square-shaped reinforced concrete core pile is prefabricated by steel bars and concrete. The square side at the upper end is 350mm long, and the square side at the lower end is 150mm long. The core ...

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Abstract

The invention belongs to the technical field of soft soil foundation treatment methods and particularly relates to a novel cement oil composite mixing pile and a pile formation method thereof. The mixing pile comprises the variable-section cement soil mixing pile and a quadrangular frustum pyramid-shaped reinforced concrete core pile, wherein the core pile is inserted into the mixing pile along the center of the section of the mixing pile and in close fit with the mixing pile. The novel cement soil composite mixing pile is manufactured by well using existing equipment and materials through changing material structure, construction process steps, the section of a pile body and the force transfer way and has the advantages of good pile formation quality, high strength of cement soil, high pile foundation bearing capacity and low cost.

Description

technical field [0001] The invention belongs to the technical field of soft soil foundation treatment methods, and in particular relates to a novel cement-soil composite mixing pile and a pile forming method thereof. Background technique [0002] Commonly used foundation treatment methods include deep hole deep dynamic compaction method, replacement cushion method, dynamic compaction method, sand and gravel pile method, vibratory impact method, cement-soil mixing method, high-pressure jet grouting method, pre-loading method, and compacted cement-soil method. Pile method, cement fly ash gravel pile method, lime pile method, lime soil compaction pile method and soil compaction pile method, column hammer punching and expansion pile method, single liquid silicification method and lye method, etc. Most of the methods start from the mechanical equipment, and then establish a certain construction method, starting from the material to improve the quality and effect of foundation tre...

Claims

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Application Information

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IPC IPC(8): E02D5/50E02D5/46E02D5/48C04B28/18
Inventor 岳建伟李增瑞许刚孙新生黄晓亮李连东
Owner 岳建伟
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