Distribution Features of the Minimum Rock Cover Thickness of the Surrounding Rock Self-Stability of the Metro Tunnel in the Soil-Rock Dualistic Stratum

Table 4

MRCT-SRS for the metro tunnel.

Hs (m)		6	12	18	24	30
MRCT-SRS (m)	D = 10.4 m	0.31	0.78	1.27	1.48	1.83
	D = 31.2 m	1.23	2.24	3.06	3.77	4.42