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Preset stiff core rammed concrete pile and its construction method

A technology of cement-soil piles and construction methods, applied in sheet pile walls, infrastructure engineering, construction, etc., can solve the problems of low single-pile bearing capacity, large pile body deformation, limiting the application scope of compacted cement-soil piles, etc. High pile bearing capacity, small pile deformation, obvious economic and social benefits

Inactive Publication Date: 2007-06-20
TIANJIN UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application range of rammed soil-cement piles is limited due to the disadvantages of low single-pile bearing capacity and large pile deformation.

Method used

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  • Preset stiff core rammed concrete pile and its construction method

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] Fig. 1 is the pre-set strength core rammed soil-cement pile, which shows the structure of the pre-set strength-core rammed cement-soil pile, reflecting that the preset strength-core rammed cement-soil pile is composed of a rammed cement-soil pile and a strength core pile, Stiff piles are located in the rammed soil-cement pile core.

[0021] As shown in Fig. 1, the pre-set core rammed soil-cement pile of the present invention includes a rammed soil-cement pile. A cored pile is arranged in the body of the rammed soil-cement pile, and the pile length of the cored pile is greater than or equal to two-thirds of the length of the soil-cemented pile with a preset core. The pile top area of ​​the core pile is greater than or equal to 20% of the pile top area of ​​the core tamped cement-soil pile. Core piles are prefabricated piles with circular, circular or square c...

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Abstract

The present invention discloses a preset stiff core rammed soil-cement pile and its construction method. It includes rammed soil-cement pile, and in the pile body interior of rammed soil-cement pile a stiff core pile is set, and the pile length of said stiff core pile is greater than or equal to 2 / 3 of the preset stiff core rammed soil-cement pile length. The material of pile body of stiff core pile is plain concrete or reinforced concrete. Said invention also provides the steps of said construction method.

Description

technical field [0001] The invention relates to a cement-soil pile and a construction method thereof, in particular to a cement-soil pile with a pre-set core and a compacted cement-soil pile and a construction method thereof, which is applicable to the field of civil engineering-ground foundation. Background technique [0002] "Tamped cement-soil pile" in the prior art, after it mixes cement and soil by a certain ratio, layered fillers are compacted into piles in pile holes. The bearing capacity of a single pile is determined by two conditions: one is the side resistance of the soil around the pile and the end resistance of the soil at the pile tip, and the other is that the load borne by the pile must ensure the safety of the pile body; the bearing capacity of a single pile is taken from the above two conditions low value. Due to the low material strength of the rammed cement-soil pile, it is determined that the maximum single pile bearing capacity of the rammed cement-soi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/50
Inventor 郑刚刘冬林顾晓鲁刘畅
Owner TIANJIN UNIV
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