直覆老顶工作面顶板运移及应力分布规律

Migration and Stress Distribution of Working Face with Vertical Overbite Main Roof

摘要: 根据1602(3)工作面的赋存情况，通过数值模拟及现场实测分析了工作面超前支承压力分布规律，得出了超前支承压力峰值区域及影响范围，并分析了顶板岩层垂直应力的分布规律，判断出了顶板岩层断裂层位、离层层位及关键层的存在范围。实测并分析得出了工作面的周期来压步距及采动影响范围。

Abstract: According to occurrence of 1602(3) working face, we analyze advance abutment pressure distribution and its peak and effect range through numerical simulation and filed measurement. We also analyze roof's vertical stress distribution, and judge range of strata fracture, abscission horizon and key stratum. Through filed measurement, we got periodic weighting length, and affected areas by mining.