Study on the Evolution Characteristics of Two-Zone Failure Mode of the Overburden Strata under Shallow Buried Thick Seam Mining

<div>Mechanical model of “two-zone” failure mode evolution (I).</div>

Advances in Civil Engineering

Figure 6: Study on the Evolution Characteristics of Two-Zone Failure Mode of the Overburden Strata under Shallow Buried Thick Seam Mining 