Back analysis of consolidation coefficient with in-situ settlement data

DENG Yong-feng

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Back analysis of consolidation coefficient with in-situ settlement data

更新时间：2026-06-25

- Back analysis of consolidation coefficient with in-situ settlement data
- Vol. 26, Issue 11, (2005)
- 作者机构：
  
  东南大学交通学院,南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB115
- Online First：03 January 2014，
  
  Published：2005
- 稿件说明：
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DENG Yong-feng. Back analysis of consolidation coefficient with in-situ settlement data[J]. 2005, 26(11).
DOI：

DENG Yong-feng. Back analysis of consolidation coefficient with in-situ settlement data[J]. 2005, 26(11). DOI：

摘要

Asaoka法在岩土工程中经常用于工后沉降的预测，同时Asaoka方法中的 - 直线的斜率和固结系数的关系还被广泛用于反演地基的固结系数。但相关资料表明用该方法反演得到固结系数与地基的固结系数存在一定的误差。为此分析了产生误差的原因，并在此基础上，根据Terzaghi一维固结理论推导了的 - 直线的斜率和固结系数之间的表达式。分析表明采用推导得到的 - 表达式反演的固结系数与地基的固结系数能够较好地吻合。

Abstract

The Asaoka method has often been used to predict the post-construction settlement in geotechnical engineering and the consolidation coefficient can be calculated with the quantitative expression of consolidation coefficient Cv versus the slopeβ1 of the Si-Si+1 straight line in the Asaoka’s method based on the observed settlement data. However

it has been reported that the back-analyzed consolidation coefficients with the Asaoka’s method are not consistent with the in-situ one. This study investigated this discrepancy

and propsoed a new method for calculating the consolidation coefficient based on one-dimensional Terzaghi’s consolidation theory. The back-analyzed consolidation coefficients with the new expression are quite consistent with the in-situ one.

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