Quantitative Evaluation of Top Coal Caving Methods at the Working Face of Extra-Thick Coal Seams Based on the Random Medium Theory

<div>Coal-rock settlement curves for the two coal caving schemes (4# and 11#).</div>

Advances in Civil Engineering

Figure 7: Quantitative Evaluation of Top Coal Caving Methods at the Working Face of Extra-Thick Coal Seams Based on the Random Medium Theory 