4LIU Guangdi, DING Zhiliang. Construction Technology of CRD Method Used in Super-Large Cross Section Tunnel on High Speed Railway[J]. Railway Engineering, 2010, (5): 43-47.
5WANG Junmin. Construction Techniques for Double-Arch Tunnel in Soft Surrounding Rock[J]. West-China Exploration Engineer- ing, 2003, 15 (6): 95-97.
7Ministry of Housing and Urban-Rural Development of the People's Republic of China. Code for Construction and Acceptance of Metro Engineering: GB 50299-1999[S]. Beijing: China Planning Press, 1999.
9Ministry of Railways of the People's Republic of China. Code for Design of Railway Tunnel: TB 10003-2005[S]. Beijing: China Rail- way Publishing House, 2005.
