察哈素煤矿大采高综采工作面宽度优化模拟分析

Numerical simulation and optimal analysis on the width of fully-mechanized mining face in Chahasu coal mine

工作面长度是采煤工艺的重要参数,为实现高效高产开采,察哈素煤矿计划采用超长工作面进行回采。结合察哈素煤矿具体生产及地质情况,分析矿山压力显现对不同长度工作面的影响,采用数值模拟的方法确定回采工作面的合理长度,供实际中参考使用。研究结果表明,工作面的合理宽度为300m。

The width of coal mining face is one of important parameters for the mining technology, in order to realize high mining technique, the mining experiment of great-height and supper-long faces is scheduled in Chahasu coal mine.Combined with the detail geological and mining conditions of No.31 working area in Chahasu coal mine, the effect of the strata pressure behavior on different width of mining face has been analyzed, and the reasonable mining width of the working face was determined as a reference of the practical using by numerical simulation method. The study result shows that the reasonable mining width of the working face was 300m.