Some considerations about parameters of deformation of settlement prediction

LI Ren-ping; CHEN Fu-quan

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Some considerations about parameters of deformation of settlement prediction

更新时间：2026-06-25

- Some considerations about parameters of deformation of settlement prediction
- Vol. 28, Issue S1, (2007)
- 作者机构：
  
  1. 三峡大学土木水电学院,湖北,宜昌,443002
  2. 福州大学土木工程学院,福州,350002
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU433
- Online First：28 March 2014，
  
  Published：2007
- 稿件说明：
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LI Ren-ping, CHEN Fu-quan. Some considerations about parameters of deformation of settlement prediction[J]. 2007, 28(S1).
DOI：

LI Ren-ping, CHEN Fu-quan. Some considerations about parameters of deformation of settlement prediction[J]. 2007, 28(S1). DOI：

摘要

地基在加载过程中，高应力区的土体单元因为损伤导致非线性变形的产生，地基刚度随应力水平的增加而减小。探讨了切线压缩模量、切线模量、修正切线模量、变形模量及修正变形模量的各自适用条件，指出压缩模量仅适用于完全侧限条件下地基的固结沉降分析，反映的是地基刚度随应力水平增加而增加的情况；修正切线模量由于考虑了对附加应力的修正，比切线模量更加可靠；对于工作荷载不大的线弹性地基，采用修正变形模量计算沉降比采用变形模量更加可靠。

Abstract

In high stress zone of subsoil

nonlinear deformation is caused by structural damage during loading

and the increase in stress level leads to the reduction of soil rigidity. The applicable conditions of compression modulus

tangent modulus

correctional tangent modulus

deformation modulus and correctional deformation modulus are discussed in this paper

namely compression module is only suitable for the unidimensional consolidation settlement analysis of foundation in which subsoil rigidity increases while stress level increases

and the correctional tangent module is more reliable than tangent module for the consideration of correction has been given to the additional stress. In the same way

the correctional modulus of deformation is more reliable than modulus of deformation for settlement prediction of the linear elastic foundation bearing permissible load.

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