Pile forming operation method for bi-directional stirring piles

A technology of two-way mixing and operation method, which is applied in the direction of sheet pile wall, building, foundation structure engineering, etc., can solve the problems of low work efficiency, leakage of slurry, and affecting the quality of piles, so as to ensure the quality of the pile body, expand the application range, and ensure The effect of pile quality
CN1632233AActive Publication Date: 2005-06-29南京路鼎搅拌桩特种技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
南京路鼎搅拌桩特种技术有限公司
Publication Date
2005-06-29

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Abstract

The piling operation method of two-way mixing pile is a foundation treatment method, which is suitable for soft soil foundation treatment. The operation method is: a: leveling the site; Centering; c: Stirring and sinking: start the two-way stirring pile driver, make the drill pipe of the two-way stirring pile driver cut the soil downward along the guide frame, turn on the slurry pump, spray cement slurry to the soil, and the drill pipe of the two-way stirring pile driver is respectively positive , The counter-rotating blades rotate at the same time to stir the cement and soil; d: The drill pipe of the two-way stirring pile machine continues to sink and stir the cement and soil until the design depth; e: While stirring and lifting, the drill pipe of the two-way stirring pile machine rotates forward and reverse f: lift and stir to the ground surface or 50cm above the design elevation, and complete the construction of the two-way mixing cement-soil mixing pile (1). The cement-soil mixing pile (1) is arranged in a plum blossom shape or square to ensure quality and pile quality.
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Description

technical field

[0001] The invention relates to a ground treatment method, which is suitable for soft ground treatment and belongs to the technical field of civil engineering. Background technique

[0002] The cement-soil mixing pile was first successfully developed in Sweden. In 1977, the General Building Research Institute of the Ministry of Metallurgy and the Water Transport Planning and Design Institute of the Ministry of Communications carried out indoor experiments and mechanical development in China. In 1980, it succeeded for the first time in the soft soil foundation reinforcement project. Since then, it has been popularized in soft soil foundation reinforcement projects across the country, especially in soft soil foundation treatment in road engineering.

[0003] Soft soil foundation treatment in road engineering is a key link to ensure the quality of the project, and it occupies a large proportion of the total project price. A large number...

Claims

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