| 盐岩蠕变特性和本构关系研究 |
| |
| 引用本文： | 刘江,杨春和,吴文,高小平.盐岩蠕变特性和本构关系研究[J].岩土力学,2006,27(8):1267-1271. |
| |
| 作者姓名： | 刘江 杨春和 吴文 高小平 |
| |
| 作者单位： | 1. 中国科学院岩土力学重点实验室,武汉,430071;中交第二航务工程勘察设计院,武汉,430071
2. 中国科学院岩土力学重点实验室,武汉,430071 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划);中国科学院前沿领域研究基金 |
| |
| 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。
|
| 关 键 词： | 盐岩 蠕变试验 温度 本构关系 |
| 文章编号： | 1000-7598-（2006）08-1267-05 |
| 收稿时间： | 2005-03-03 |
| 修稿时间： | 2005-04-30 |
Study on creep characteristics and constitutive relation of rock salt |
| |
| LIU Jiang,YANG Chun-he,WU Wen,GAO Xiao-ping.Study on creep characteristics and constitutive relation of rock salt[J].Rock and Soil Mechanics,2006,27(8):1267-1271. |
| |
| Authors: | LIU Jiang YANG Chun-he WU Wen GAO Xiao-ping |
| |
| Institution: | 1. Key Laboratory of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China； 2. The Second Investigation and Design Institute, China Transportation Engineering, Wuhan 430071, China |
| |
| Abstract: | Uniaxial and triaxial creep tests have been performed on rock salt of Jintan Salt Mine on high temperature and high pressure triaxial theological 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. |
| |
| Keywords: | rock salt creep test temperature constitutive relation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
