Constraint Embankment Construction to Prevent the Collapse of Underground Caves

Table 2

Basic material properties of embankment and cover.

Strata	E (MPa)		ρ (kg·m^−3)	φ (°)	c (kPa)
Embankment	50	0.35	1900	24	10
Cover	30	0.35	1900	20	50