| 三峡泄滩滑坡体滑动带土的蠕变试验研究 |
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| 引用本文： | 王琛,胡德金,刘浩吾,许强,黄润秋.三峡泄滩滑坡体滑动带土的蠕变试验研究[J].岩土力学,2003,24(6):1007-1010. |
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| 作者姓名： | 王琛 胡德金 刘浩吾 许强 黄润秋 |
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| 作者单位： | 1. 四川大学 水利水电学院，四川 成都 610065；2. 成都理工大学，四川 成都 610059 |
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| 基金项目： | 国家自然科学基金资助(编号:40172096). |
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| 摘 要： | 三峡古滑坡的变形和长期稳定的控制性因素，在于滑动带土力学特性的强度损伤积累和时间效应。为了滑坡建模和稳定数值分析的需要，进行了泄滩滑坡体滑动带土的三轴排水蠕变试验研究。并在此基础上，给出了排水条件下粘性土的Mesri蠕变模型，即剪应力-应变关系采用双曲线模型，应变-时间关系采用幂函数来描述土体的弹粘塑性。
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| 关 键 词： | 滑动带土 蠕变 三轴排水蠕变试验 Mesri蠕变模型 剪应力-应变-时间关系 |
| 文章编号： | 1000-7598-(2003)02-1007-04 |
| 收稿时间： | 2002-11-01 |
| 修稿时间： | 2002年11月1日 |
Creep tests of sliding zone soils of Xietan landslide in Three Gorges Area |
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| WANG Chen,HU De-jin,LIU Hao-wu,XU Qiang,HUANG Run-qiu.Creep tests of sliding zone soils of Xietan landslide in Three Gorges Area[J].Rock and Soil Mechanics,2003,24(6):1007-1010. |
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| Authors: | WANG Chen HU De-jin LIU Hao-wu XU Qiang HUANG Run-qiu |
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| Affiliation: | 1.School of Water Resources and Hydropower, Sichuan University, Chengdu 610065, China; 2.Chengdu University of Technology, Chengdu 610059, China |
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| Abstract: | The displacements and long-term stabilization of the old landslides in Three Gorges Area importantly depend on both the decreasing of strength and time-effect of the mechanical characters of sliding zone soils. In order to set up a basis of the further numerical analysis, the drained triaxial compression tests with the constant stress have been carried out. Based on those tests a shear stress-strain-time function, Mesri creep model, in which a hyperbola is adopted for shear stress-strain behaviour and power function for strain-time behaviour , is given. |
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| Keywords: | sliding zone soils creep drained triaxial creep test Mesri creep model shear stress-stain-time behaviour |
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