Phenomenon and Critical Conditions of Chamber Soil Sliming during EPB Shield Tunneling in Water-Rich Weathered Diorite: Case Study of Jinan Metro, China

Table 3

Seepage model parameters.

α	t (h/ring)	k (m/s)	(m)
2/3, 1/2, 1/3	4, 6, 8	10^−5, 10^−6, 10^−7	7, 10, 13, 16