综放面端面顶煤稳定性数值模拟

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Abstract Based on the numerical simulation method，the factors to influence the stability of the top-coal in the end-face of the fully mechanized sub-level caving are analyzed. The results show that the stability of the top-coal in the end-face is determined by the mechanical property of the top-coal，the movement of the direct roof and the main roof，and the supporting methods，among which the distance from the rib to the fore point of the support is one of the most important factors.

Key words： fully-mechanized sub-level caving mining stability of top-coal numerical simulation

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https://rockmech.whrsm.ac.cn/EN/Y2002/V21/IS/2103

[1]	ZHANG Zhao1, 2, MA Hao1, ZHU Liangyu3, ZHANG Zhao1, ZHOU Zihao1, ZHANG Yuan?ao1, WEN Yilong1. Theoretical equation to predict soil tortuosity considering the effect of particle non-uniformity and its application[J]. , 2025, 44(8): 2178-2190.