Experimental Study on Physical Similar Model of Fault Activation Law Based on Distributed Optical Fiber Monitoring

Table 1

Similar model lithology parameters.

Lithology	Density (kg/m^3)	Compressive strength (MPa)	Elastic modulus (GPa)	Poisson’s ratio	Angle of internal friction (°)	Matching number (quartz sand : gypsum : lime)
Medium sandstone	2440	53.21	30.02	0.40	35.0	8 : 4 : 6
Mudstone	2461	25.56	8.85	0.26	30.0	9 : 4 : 6
2# coal	1440	22.45	3.42	0.16	26.9	9 : 2 : 8
Siltstone	2707	35.19	23.85	0.19	29.5	8 : 2 : 8
Fine sandstone	2873	45.03	17.66	0.14	29.2	8 : 3 : 7