| 成都裂隙性黏土流变特性试验 |
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| 引用本文： | 张晓超,许模.成都裂隙性黏土流变特性试验[J].实验室研究与探索,2010,29(4). |
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| 作者姓名： | 张晓超 许模 |
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| 作者单位： | 成都理工大学,地质灾害防治与地质环境保护国家重点实验室,四川,成都,610059 |
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| 基金项目： | 四川省教育厅重点实验室专项基金，成都理工大学青年科学基金 |
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| 摘 要： | 以成都裂隙性黏土为对象,进行一系列室内试验,探讨了成都裂隙性黏土的流变特性。通过三轴固结不排水蠕变试验,得到不同围压下各级偏应力水平的全过程蠕变曲线和应力—应变等时曲线,对试验结果做了讨论,并建立了蠕变方程。其中应变—时间关系采用伯格斯模型,应力—应变关系采用指数函数的蠕变方程,拟和曲线与试验曲线很好的吻合,较好地表达了土体的应力—应变—时间关系。
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| 关 键 词： | 蠕变试验 裂隙性黏土 蠕变模型 流变特性 伯格本构模型 |
Experimental Study on Rheological Behaviors of Chengdu Fissured Clay |
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| ZHANG Xiao-chao,XU Mo.Experimental Study on Rheological Behaviors of Chengdu Fissured Clay[J].Laboratory Research and Exploration,2010,29(4). |
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| Authors: | ZHANG Xiao-chao XU Mo |
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| Institution: | ZHANG Xiao-chao,XU Mo,ZHENG Hai-jun(State Key Laboratory of Geo-hazards Prevention , Geo-environment Protection,Chengdu University of Technology,Chengdu 610059,China) |
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| Abstract: | On the basis of a series of triaxial creep tests of Chengdu fissured clay,rheologic behaviors of the fissured clay were researched.The CU triaxial creep tests of Chengdu fissured clay under different confining pressures were carried out by using multi-grade loading mode,the full-process creep curves under different confining pressures and the equal-time stress-strain curves were obtained,and the creep models of Chengdu fissured clay were proposed,in which exponential function is adopted for stress-strain re... |
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| Keywords: | creep test fissured clay creep models rheologic behaviors Burgers constitutive model |
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