Numerical Simulation of Mining-Induced Damage in Adjacent Tunnels Based on FLAC^3D

Table 1

Laboratory rock-mass properties.

Rock
	()	()	()	()	()	()
Coal	1,420	6.1	1.9	2.11	2.6	29.5
Mudstone	2,437	15.6	8.9	2.2	1.8	38
Sandstone	2,690	10.7	6.15	1.55	1.38	41
Sprayed concrete	2,300	14.0	10.2	2.0	1.5	50

: density; : bulk modulus; : shear modulus; : cohesion; : tensile strength; : internal friction angle.