Study on Safety Degree of Primary Support Structure of Tunnel in Sandy Rock Mass on LanzhouChongqing Highspeed Railway

ZHU Dehua，LIANG Bin，YU Shaohui，YANG Chaoshuai

Tunnel Construction . 2013, (2): 135 -141 . DOI: 10.3973/j.issn.1672-741X.2013.02.008