Numerical Simulation Study on Stability Control Technology of Large-Area Wall Caving Area (LAWCA) in Large-Inclined Face

Table 2

Rock mass mechanical properties.

Lithology	Density/kg·m^-3	K/GPa	G/GPa	c/MPa	φ/°	σrm/MPa
Quartzose sandstone	2800	5.57	4.53	11	28	6.7
Siltstone	2680	3.6	2.7	8	25	3.5
Sandy mudstone	2691	2.8	2.1	4.6	25	2.4
Coal	1410	1.73	0.82	0.2	20	0.2
Mudstone	2567	4.3	2.8	0.7	30	1.68
Fine sandstone	2800	16.04	12.1	3.5	43	5.0
Sandy mudstone	2691	6.9	5.6	4.6	35	2.4