Study on creep characteristics and constitutive relation of rock salt

LIU Jiang; YANG Chun-he; WU Wen; GAO Xiao-ping

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Study on creep characteristics and constitutive relation of rock salt

更新时间：2026-06-25

- Study on creep characteristics and constitutive relation of rock salt
- Vol. 27, Issue 8期　刊出日, (2006)
- 作者机构：
  
  1. 中国科学院岩土力学重点实验室,武汉,430071
  2. 中交第二航务工程勘察设计院,武汉,430071
- 作者简介：
- 基金信息：
- DOI：
  CLC： O319.56
- Online First：26 November 2013，
  
  Published：2006
- 稿件说明：
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LIU Jiang, YANG Chun-he, WU Wen, et al. Study on creep characteristics and constitutive relation of rock salt[J]. 2006, 27(8期　刊出日).
DOI：

LIU Jiang, YANG Chun-he, WU Wen, et al. Study on creep characteristics and constitutive relation of rock salt[J]. 2006, 27(8期　刊出日). DOI：

摘要

对金坛盐岩蠕变规律进行了试验研究，分析了不同应力状态和温度对盐岩蠕变特性的影响，通过试验获取了蠕变曲线和蠕变特征参数。根据其蠕变曲线特征，用黏弹塑性理论建立了盐岩蠕变本构模型。试验结果表明，稳态蠕变率是偏应力和温度的非线性函数关系，并提出盐岩的稳态蠕变本构方程。通过试验数据拟合得到本构方程中的参数，将理论和试验结果进行比较，结果表明两者的吻合性较好。

Abstract

Uniaxial and triaxial creep tests have been performed on rock salt of Jintan Salt Mine on high temperature and high pressure triaxial rheological device; the creep characteristics of rock salt are investigated and the effect of stress state and temperature of rock salt are analyzed; and then the creep characteristic curve and parameters are obtained. Based on the character of creep curve of rock salt

a creep constitutive model of rock salt is established by using viscoelasto-plastic theory. Through the test results

it is shown that the steady state creep strain rate is a nonlinear function of diviatoric stress and temperature; a steady state creep constitutive model of rock salt is established. The patameters of constitutive equation are obtained by fitting test data; the theoretic results is proved well by comparison with the experimental results.

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Related Author

LIU Jiang1

YANG Chun-he1

WU Wen1

GAO Xiao-ping1

LI Ping

DENG Jin-gen

SUN Yan

YAN Xin-jiang

Related Institution

The Second Investigation and Design Institute,China Transportation Engineering

中交第二航务工程勘察设计院

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