近距离煤层首采层确定方法探究

Exploration of Method Determining for the First Mining Layer in Close Coal Seam

以近距离煤层开采时首采煤层的优化选择为对象,借助FLAC3D这一现代化数值模拟手段,构建依托于实际地质资料的数值模型,对不同煤层充当首采层时的采场覆岩垂直应力变化展开分析,并借由相互对比,最终确定出最佳的首采煤层,从而对生产实际产生积极的指导作用。

With the optimization and selection of the first mining layer in close coal seam mining as the target, this paper referred to the modem numerical simulation of FLAC3D and built the numerical model on the basis of actual geological data, analyzed the changes of overlying strata vertical stress in the stope of different coaX seam which was chosen as the first mining layer, and ultimately determined the best first mining layer by contrast with each other so as to provide positive guidance to practical production.