Quantitative Characterization of Overburden Rock Development Pattern in the Goaf at Different Key Stratum Locations Based on DEM

<div>Test plan design: (a) the main key stratum is located in the “original crack belt”; (b) the main key stratum is located in the “original crack belt boundary”; (c) the main key stratum is located in the “original caving zone”.</div>

Advances in Civil Engineering

fig5

Figure 5

Figure 5: Quantitative Characterization of Overburden Rock Development Pattern in the Goaf at Different Key Stratum Locations Based on DEM 