冻粘土粘弹塑本构方程及试验验证  

Verification on viscoelastic plastic constructive equation and test of freezing clay

作　　者：李栋伟[1] 汪仁和[1,2] 林斌[1] 崔灏 

机构地区：[1]安徽理工大学土木工程系 [2]中国科学技术大学力学和机械工程系,安徽合肥230026 [3]北京中煤矿山工程有限公司

出　　处：《煤炭工程》2005年第8期69-71,共3页Coal Engineering

基　　金：安徽省教育厅自然科学基金(2004kj110)资助

摘　　要：通过冻土单轴蠕变试验结果分析,以西源模型为基础,假定冻土服从Mises屈服准则,推导出应用与数值计算的柔度矩阵;用三轴蠕变试验检验了冻土粘弹塑本构模型;获得了相应的试验拟合曲线。结果表明:蠕变理论模拟值与三轴实测蠕变结果相吻合,该模型可用于人工冻土工程设计。With the analysis on the single axial creep test result of the freezing soil, base on the Xiyuan model and the assuming of the freezing soil yielded to the Mises yield code, the paper derived the flexible matrix for the value calculation. The freezing soil viscoelastic plastic constructive equation was verified with trial axial creep test. A related test fitting curve was obtained from the test. The results showed that the simulated value of the creep theory could be matched with the results of the trial creep measurements. The model can be applied to the design of the artificial freezing soil project.

关 键 词：蠕变 Mises-屈服准则 冻土 弹粘塑本构方程 

分 类 号：TD265.3[矿业工程—矿井建设]