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本文以地下开采工作面前方的上覆坚硬岩层为研究对象,建立了夹支于弹性地基中受有轴向压力的半无限长平面应变梁的计算模型,求解了平衡微分方程。并应用所得的解对坚硬岩层的变形运动和矿山压力的分布规律、岩层可能出现断裂的位置及发生“反弹”现象的原因等进行了分析。
In this paper, the overlying hard rock formations in front of the underground working face are taken as the research object. The computational model of the semi-infinite long-plane strain beam with axial compression in the elastic foundation is established and the equilibrium differential equation is solved. And the application of the solution to the deformation of hard rock deformation and the pressure distribution of the law, the possible fracture location and the occurrence of “rebound” phenomenon causes were analyzed.