| 有压隧洞衬砌与围岩相互作用数值模拟分析 |
| |
| 引用本文： | 张强勇,俞裕泰. 有压隧洞衬砌与围岩相互作用数值模拟分析[J]. 武汉大学学报(工学版), 1998, 0(2) |
| |
| 作者姓名： | 张强勇 俞裕泰 |
| |
| 作者单位： | 中国科学院武汉岩土力学研究所 |
| |
| 摘 要： | 通过建立有限元计算模型，运用荷载分级、变刚度迭代非线性有限元法，系统研究了有压隧洞衬砌与围岩之间的相互作用．探讨了锚杆支护、衬砌与围岩之间接缝大小和接触角变化对衬砌、围岩承载能力的影响．根据建立的模型，对一隧洞工程进行了三维非线性有限元计算，获得了一些具有工程指导意义的结论．
|
| 关 键 词： | 变刚度迭代；界面单元；预裂单元；接触角 |
Numerical Simulation Analysis of Interaction between Lining and Surrounding Rockmass for Pressure Tunnel |
| |
| Zhang Qiangyong Yu Yutai. Numerical Simulation Analysis of Interaction between Lining and Surrounding Rockmass for Pressure Tunnel[J]. Engineering Journal of Wuhan University, 1998, 0(2) |
| |
| Authors: | Zhang Qiangyong Yu Yutai |
| |
| Affiliation: | College of Hydroelectric Engineering |
| |
| Abstract: | Interaction between lining and surrounding rockmass for pressure tunnel is systematically studied by establishing the finite element computation models and utilizing changing stiffness iteration method under multi stage load.We probe the effect of bolt supporting,interface width and variation of contact angle on load bearing capacity of lining and surrounding rockmass.According to the established models,we carry out 3 D non linear FEM computation for a tunnel project and get some conclusions of guide significance for engineering. |
| |
| Keywords: | changing stiffness iteration interface element pre cracked element contact angle |
| 本文献已被 CNKI 等数据库收录！ |
