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.
出处
《地下空间与工程学报》
CSCD
北大核心
2009年第6期1285-1288,共4页
Chinese Journal of Underground Space and Engineering
关键词
围岩稳定性
二维非线性有限元
D-P准则
stability of the surrounding rockmass
2-D nonlinear finite element method
Drucker-Prager criterion
