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本文以托板假说为理论基础,研究了块段开采时上覆厚硬岩层的托板式应力应变规律,采空区尺寸对托板稳定性影响及托板对地表沉降的控制作用。
Based on the theory of pallet hypothesis, the paper studies the law of pallet stress and strain of overlying thick and hard rock when block mining, the influence of goaf size on pallet stability and the control effect of pallet on surface subsidence.