Experimental investigation on creep behavior of soft clays: Review and development

YIN Zhen-yu; ZHU Qi-yin; ZHU Jun-gao

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Experimental investigation on creep behavior of soft clays: Review and development

更新时间：2026-06-25

- Experimental investigation on creep behavior of soft clays: Review and development
- Vol. 34, Issue S2, (2013)
- 作者机构：
  
  1. 上海交通大学土木工程系,上海,200240
  2. 河海大学岩土工程研究所,南京,210098
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU443
- Online First：19 November 2013，
  
  Published：2013
- 稿件说明：
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YIN Zhen-yu, ZHU Qi-yin, ZHU Jun-gao. Experimental investigation on creep behavior of soft clays: Review and development[J]. 2013, 34(S2).
DOI：

YIN Zhen-yu, ZHU Qi-yin, ZHU Jun-gao. Experimental investigation on creep behavior of soft clays: Review and development[J]. 2013, 34(S2). DOI：

摘要

大量的室内和现场试验表明软黏土存在长期变形难以收敛的问题，为了更深入地认识软黏土的蠕变特性，首先，从微观物理化学角度探讨蠕变机制；然后，深入分析一维应力条件下次固结系数的演变规律以及确定方法和三轴排水、不排水蠕变特性及黏土的长期抗剪强度、室内旁压试验和现场试验等复杂应力下的黏土蠕变特性等，并且讨论黏土蠕变特性与应变速率和应变松弛特性在一维和三轴条件下的关联性；最后，从黏土次固结特性与微观结构的相关性、如何准确描述次固结系数的非线性及蠕变过程中应力剪胀剪缩关系发展等三方面更深入地探讨软黏土蠕变特性。

Abstract

Extensive laboratory tests and field observations show that soft clay exhibits long-term deformation. For further understanding of the creep characteristics of soft clay

the mechanism of creep is first discussed from the microscopic physicochemical viewpoint. Then

the evolution of second compression coefficient and its determination under 1D condition

triaxial creep characteristics under drained and undrained conditions

long-term shear strength

and the creep characteristics under complex stress conditions are analyzed. The relevance of creep characteristics to strain-rate and strain relaxation characteristics under both 1D and 3D conditions is discussed. Finally

some new development of the creep characteristics of soft clay are presented in three aspects: the relevance of second compression coefficient to microstructure

accurate description of nonlinear creep

and the stress-dilatancy during drained and undrained creep.

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