坚硬顶板下巷道支护参数优化分析

Optimization Analysis of Roadway Support Parameters under Hard Roof

基于某矿10#+11#煤层联合开拓运输巷道原有支护方案,为使其坚硬顶板条件下巷道的支护更加安全合理,经过FLAC3D数值模拟软件模拟支护参数优化前后巷道不同位置处的最大垂直应力、巷道围岩变形和锚杆锚索受力情况,得到优化后的方案在力和变形方面均有降低。

Based on the original combined haulage roadway supporting scheme of a coal mine limited 10^#＋11^# coal seam,in order to make the support of the roadway under the condition ot hard roof is more safe and reasonable, the maximum vertical stress, deformation of the surrounding rock and the stress of the anchor cable are simulated by FLAG3D numerical simulation software, to get the optimized project in terms of force and deformation were reduced.