Key Strata Inducing Dynamic Disasters Based on Energy Condition: Criterion and Application

Figure 2

Sensitivity of influencing factors for energy spreading and attenuation. (a) Overburden load. (b) Hanging length of roof strata. (c) Thickness of roof strata. (d) Elasticity modulus of roof strata. (e) Mass of roof strata. (f) Energy attenuation coefficient.

(a)

(b)

(c)

(d)

(e)

(f)