Experimental Analysis of Construction Time Space Effect for Large Span and Flat Multi Arch Tunnel
WU Meng jun,ZHANG Yong xing,JIANG Shu ping,LIU Xin rong and LI Xin tong
DOI:10.11835/j.issn.1674-4764.2009.05.010
Received February 10, 2009,Revised , Accepted , Available online July 01, 2015
Volume ,2009,Pages 54-58
- Abstract
For the large span and flat, together with the interaction effect of construction and disturbance of surrounding rock, the mechanical of large span and flat multi arch tunnel is very complicated, and the time space effect is different from that of two lane multi arch tunnel or separated tunnel. Adopting the “CTSSSRH”, the 3 D dynamic process of the tunnel construction was simulated. Analyzing the rule of surrounding rock displacement and stress with excavation, the time space effect of large span and flat multi arch tunnel was proposed.