Long-term settlement of multi-story buildings on soft clay foundation in Shanghai

MA Gui-hua; CHEN Jin-jian; WANG Jian-hua; ZHOU Hong-bo

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Long-term settlement of multi-story buildings on soft clay foundation in Shanghai

更新时间：2026-06-25

- Long-term settlement of multi-story buildings on soft clay foundation in Shanghai
- Vol. 27, Issue 6期　刊出日, (2006)
- 作者机构：
  
  1. 上海交通大学土木工程系,上海,200030
  2. 上海市建筑科学研究院,上海,200030
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU471
- Online First：14 November 2013，
  
  Published：2006
- 稿件说明：
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MA Gui-hua, CHEN Jin-jian, WANG Jian-hua, et al. Long-term settlement of multi-story buildings on soft clay foundation in Shanghai[J]. 2006, 27(6期　刊出日).
DOI：

MA Gui-hua, CHEN Jin-jian, WANG Jian-hua, et al. Long-term settlement of multi-story buildings on soft clay foundation in Shanghai[J]. 2006, 27(6期　刊出日). DOI：

摘要

通过对50幢多层建筑沉降观测资料的分析，研究了上海软土地区多层建筑的长期沉降。对竣工以后的观测数据采用指数模型进行回归分析，可以反映软黏土的流变特性，较好地模拟建筑物后期的沉降发展过程，从而预测得到最终沉降量和沉降稳定时间。根据指数模型的分析结果，并引入地基压缩层内的软黏土厚度所占比例的概念，研究了多层建筑长期沉降与地基土层特性的关系。结果表明，最终沉降和沉降持续时间随着软黏土厚度比例的增加而增大，竣工时沉降占总沉降的比例随着软黏土厚度比例的增大而下降，并且具有线性关系。

Abstract

The long-term settlement behavior of multi-story buildings on soft clay foundation in Shanghai is analyzed based on the long-term observed data of 50 multi-story buildings. Exponential model can reflect creep deformation of soft clay

which has obvious physical meaning of rheology. The long-term settlement of building is simulated well by analyzing the observed settlements after construction with the exponential model; and the final settlement and settlement duration are predicted. Considering the variation of thickness ratio (Ks) of very soft clay layers in the four types of subsoil

relationship between Ks and long-term settlement of building is obtained from analysis of all records. With the increase of Ks

the final settlement and settlement duration increase

while the ratio of settlement finished during construction is decreasing.

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