Research on Crack Propagation of Deep Geologic Mass Disturbed by Excavation Based on Phase Field Method

Table 1

Parameters of geological model around pile No. 21+979.

Number	Stratum	Density (10^3kg/m^3)	Elasticity modulus (MPa)	Poisson’s ratio
1	Silty clay	1.96	5.94	0.3
2	Fine medium sand	2.00	13.5	0.2