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| 2020, Vol. 57(4): 201-207 DOI: | ||
| Vertical Roof Ripping Construction Techniques for Excavation of Main Tunnel from Inclined Shaft: A Case Study of the Large-span Metro Tunnel in Soft Surrounding Rock | ||
| (1 China Communications Construction Company (Guangzhou) Ltd., Guangzhou 511458; 2 School of Mechanics and Civil Engineering,State Key Laboratory for Geomechanics & Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116) | ||
| Received null Revised null | ||
| Supporting info | ||
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