近距离煤层首采层确定方法探究
孙秉福
（同煤集团总调度室，山西大同037003）
摘要： 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。
关键词： 近距离煤层；首采层；模型构建；数值模拟
中图分类号： TD82 文献标识码： A 文章编号： 2095-0802-(2016)12-0020-02
Exploration of Method Determining for the First Mining Layer in Close Coal Seam
SUN Bingfu
(General Dispatch Office, Datong Coal Mine Group, Datong 037003, Shanxi, China)
Abstract: With the optimization and selection of the first mining layer in close coal seam mining as the target, this paper referred
to the modern 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 coal 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. Key words: close coal seam; first mining layer; model building; numerical simulation