机译:Discussion on Reasonable Clear Spacing of Twin-Tunnels in Weak Surrounding Rock: Analytical Solution and Numerical Analysis
Southwest Jiaotong Univ, Key Lab Transportat Tunnel Engn, Minist Educ, Chengdu 610031, Peoples R China;
Sichuan Mianjiu Expressway Co Ltd, Chengdu 610041, Peoples R China;
Xuzhen Railway Co Ltd, Zhaotong 657900, Peoples R China;
Twin-tunnels; Clear spacing; Surrounding rock pressure; Middle rock pillar; Pressure-arch; Numerical simulation;