Construction Technology for Safe Excavation of HighHanging Portal of SichuanTibet Railway Near Primary Class I Water Source

WANG Jingang, YU Jingbo, LI Zhijun, LIU Weizheng, CHEN Qiao, ZHOU Guangjie

Tunnel Construction . 2021, (S2): 588 -596 . DOI: 10.3973/j.issn.2096-4498.2021.S2.075