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Evaluation processing method for entrainment superimposed settlement of pile groups

A technology for evaluating treatment and settlement, which is applied in basic structure testing, construction, basic structural engineering, etc., can solve problems such as immature calculation theory and methods, insufficient research depth, etc., and achieves easy engineering application, clear concept, and simple method Effect

Active Publication Date: 2013-12-11
SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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Problems solved by technology

The essence is the combination of simplified entities and deep foundations Mindlin However, the research depth of this method is not enough, and the calculation theory and methods are not mature enough

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  • Evaluation processing method for entrainment superimposed settlement of pile groups
  • Evaluation processing method for entrainment superimposed settlement of pile groups
  • Evaluation processing method for entrainment superimposed settlement of pile groups

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Embodiment Construction

[0038] The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the art:

[0039] Based on a large amount of engineering data, this embodiment first summarizes the calculation method and accuracy of pile tip settlement, and forms a standard for measuring the calculation results of pile foundation settlement; secondly, completely deduces the stress at any point in the soil, and uses the settlement calculation theory of classical soil mechanics Apply it to the calculation of towing settlement, obtain the analytical solution of towing settlement, and finally use the pile tip settlement as the inspection standard to establish the relationship between pile tip settlement and towing settlement, and form a set of theoretical and practical simplified calculations for group pile foundation towing settlement calculat...

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Abstract

The invention relates to the field of geotechnical engineering, in particular to an evaluation processing method for entrainment superimposed settlement of pile groups. According to the method, by utilizing a solid deep foundation simplified calculation model, a calculation formula for stress fields of surrounding soil bodies of pile foundations is deduced, and from the analysis of the calculation of the settlement of the pile foundations to the calculation of the stress fields and displacement fields of the surrounding soil bodies of the pile foundations, the evaluation processing method for the entrainment settlement of the pile groups is formed, and meanwhile, the entrainment settlement calculation of a single pile group foundation can be expanded to the entrainment settlement calculation of multiple pile group foundations by using the method. The evaluation processing method for the entrainment superimposed settlement of the pile groups provided by the invention has the advantages that the stress fields of the surrounding soil bodies of equivalent pier foundations are completely deduced; a method of classical soil mechanics is introduced into the evaluation method for the entrainment settlement of the pile groups, and therefore, not only can the settlement of pile tips be evaluated, but also the entrainment superimposed influences of the pile group foundations on the surrounding soil bodies can be evaluated. The evaluation processing method for the entrainment superimposed settlement of the pile groups is clear in concept, simple in method and reliable in evaluation accuracy, and convenient for engineering application.

Description

[0001] technical field [0002] The invention relates to the field of geotechnical engineering, in particular to a method for evaluating and processing pile group towing and stacking settlement. Background technique [0003] The elastic theory method is used to calculate the superimposed settlement of pile group dragging, mainly based on the stress method, that is, the stress of the soil around the pile foundation is obtained first, and the displacement is obtained by the layered sum method. According to the simplified model of the pile foundation, the method The method can be divided into two methods. [0004] The first one takes a single pile as the starting point, and extends from the interaction analysis of two piles to the interaction analysis of pile groups. In essence, the single pile superposition effect is used to calculate the stress and displacement of the pile foundation and the surrounding soil, which requires a large amount of calculation. In the case of a lar...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D33/00
Inventor 顾国荣杨石飞梁振宁
Owner SHANGHAI GEOTECHN INVESTIGATIONS & DESIGN INST
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