A Numerical Study of Underground Cavern Stability by Geostress Characteristics

Table 5

Case study of lateral pressure coefficient on stability of cavern side wall.

Case study	Burial depth; (m)	Deformation modulus; (GPa)	Cohesion; (MPa)	Internal friction angle (°)	Lateral pressure coefficient	Lateral pressure coefficient
Case 1	500	20	1.2	50	1	1
					1	1.5
					1	2
					1	2.5
Case 2	500	20	1.2	50	1	1
					1.5	1
					2	1
					2.5	1
Case 3	600	40	2	55	1	1
					1	1.5
					1	2
					1	2.5
Case 4	600	40	2	55	1	2.5
					1.5	2.5
					2	2.5
					2.5	2.5