Numerical Analysis on Stability of Rock in Sijiaotian Tunnel
ZHOU Xiao - ping, XU Xiao - min
DOI:10.11835/j.issn.1674-4764.2006.01.015
Received August 28, 2005,Revised August 28, 2005, Accepted , Available online July 01, 2015
Volume ,2006,Pages 59-62
- Abstract
The Sijiaotian Tunnel in Yunnan Dabao Highway lies in the narrow defile landscape,and the engineering geology condition is complex,with plenty of cienega.According to the actual situation of the Sijiaotian Tunnel Project in Yunnan Dabao Highway,the stability of the surrounding rock mass is studied by using a 3-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 determined.The numerical results show that the Sijiaotian Tunnel is relatively stable.The conclusion has some significance for guiding the construction of similar projects.