| 考虑时间效应的E-μ 模型 |
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| 引用本文： | 王琛,彭越,刘浩吾.考虑时间效应的E-μ 模型[J].岩土力学,2004,25(4):595-600. |
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| 作者姓名： | 王琛 彭越 刘浩吾 |
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| 作者单位： | 1. 四川大学 水利水电工程学院，四川 成都 610065；2. 西南民族大学，四川 成都 610061 |
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| 摘 要： | 为进行三峡泄滩滑坡体的变形建模和稳定性数值分析，进行了滑动带土的三轴排水蠕变试验，并在此基础上，提出了排水条件下粘性土与时间有关的非线性弹性模型，即与时间有关的邓肯-张E-μ 模型。该模型假定 ， 不随时间变化， ， ， ， ， ， 均与时间有关。通过试验数据拟合，给出了部分参数（如 , , , ）与时间的关系式及模型的12个参数值。通过计算值与试验数据的对比表明：该模型适合于该滑动带粘土。
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| 关 键 词： | 滑动带土 三轴排水蠕变试验 非线性弹性 邓肯-张E-μ模型 应力-应变-时间关系 |
| 文章编号： | 1000-7598-(2004)04-0595-06 |
| 收稿时间： | 2002-12-24 |
| 修稿时间： | 2002年12月24 |
A E-μ model dependent on time |
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| WANG Chen,PENG Yue,LIU Hao-wu.A E-μ model dependent on time[J].Rock and Soil Mechanics,2004,25(4):595-600. |
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| Authors: | WANG Chen PENG Yue LIU Hao-wu |
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| Institution: | 1. College of Hydraulic & Hydroelectric Engineering, Sichuan University, Chengdu 610065, China； 2. South West Nationality University, Chengdu 610061, China |
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| Abstract: | In order to settle the basement of deformation simulation and numerical analysis of Xietan landslide in the Three Gorges, the drained triaxial compression creep tests with the constant stress on landslide zone soils have been carried out. Based on those tests and supposed that c, are independent on time and , ,G, D, n , depend on time, a Duncan-Chang E-μ model which depends on time is presented. Through the simulation of test data, the behaviors of k, , , and time are given and 12 parameters in that model is given also. In the end, through contrast of computed curves by model and test data, that model is proved to be suit to such landslide zone soils in Xietan landslide. |
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| Keywords: | landslide zone soils drained triaxial creep test nonlinear elasticity Duncan-Chang E-μmodel stress-strain-time behaviour |
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