Analysis of Structural Characteristics of Underground Cavern Group by Simulating All Cavern Excavation

Table 1

Parameters of different models.

Type of surrounding rock	Lithology	ρ (kg/m3)	E (GPa)	ν	c (MPa)	φ (∘)
Class III	Fine grain, medium-coarse sandstone	2550	7.5	0.23	0.95	46.4
Class IV	Conglomerate, siltstone	2500	5	0.26	0.5	35