Numerical Simulation of Seepage and Deformation in Excavation of a Deep Foundation Pit under Water-Rich Fractured Intrusive Rock

Table 1

Physical and mechanical parameters of surrounded layers.

Soil layer	Thickness (m)	Elastic modulus (MPa)	Poisson’s ratio	(kN·m^−3)	Permeability coefficient (m·d)	Cohesion (kPa)	Internal friction angle (°)
Plain fill	5	0.3	0.17	18	30	10	20
Silty clay	4	50	0.33	20	0.02	34.9	16.5
Coarse sand	7	18	0.3	20.5	15	0.1	30
Fractured rock	10	12000	0.2	25	0.5	5000	50
Granite	30	30000	0.1	26	0.001	30000	60