某隧道围岩稳定性有限元数值分析  

Numerical Analysis on Stability of Rock in a Tunnel

作　　者：赵正权[1,2] 罗俊财[1] 徐小敏[1] 张伯虎[1] 

机构地区：[1]重庆大学土木工程学院,重庆400045 [2]中铝矿业有限公司,郑州450041

出　　处：《地下空间与工程学报》2009年第6期1285-1288,共4页Chinese Journal of Underground Space and Engineering

摘　　要：某隧道地处峡谷地带,工程地质条件比较复杂,且地表水丰富。结合某隧道的工程实际,利用Drucker-Prager屈服准则,运用大型通用有限元软件ANSYS8.0对该隧道进行二维非线性有限元模拟分析,以评价其整体稳定性。根据计算分析结果,指出了隧道相对危险处,确定了重点监测与支护加固区,同时对类似工程也具有一定的指导意义。The Tunnel studied in this paper lies in a defile narrow area, where the engineering geology condition is complex, and there is plenty of surface water. According to the actual situation of the tunnel project ,the stability of the surrounding rock mass is studied by using a 2 - D non - linear FEM. The Drucker - Prager criterion is chosen as the failure criterion of the rock. The relatively dangerous zone and the monitoring points in the tunnel are deter- mined. The numerical results show that the tunnel is relatively stable. The conclusion can serve as a guide to the construction of similar projects.

关 键 词：围岩稳定性 二维非线性有限元 D-P准则 

分 类 号：TV233.1[水利工程]