大采高回采工作面煤柱宽度优化研究

Optimization of Coal Pillar Width in Large Mining Height Mining Face

以山西某矿大采高回采工作面为工程背景,采用理论计算、数值模拟及现场工程实践等技术手段,对该矿的煤柱宽度进行优化。将原有的煤柱宽度从35m优化至25m,现场工程实践表明,25m的煤柱宽度不仅可以保证回采工作的正常进行,而且还可以大幅的增加矿井可采煤炭资源储量,为该矿高产高效创造了良好的条件。

Based on the engineering background of a large mining height mining face in Shanxi,the width of coal pillar in this mine is optimized by means of theoretical calculation,numerical simulation and field engineering practice.By optimizing the original coal pillar width from 35m to 25m,the field engineering practice shows that the 25m coal pillar width can not only ensure the normal operation of mining,but also greatly increase the reserves of coal resources in the mine,creating good conditions for high production and high efficiency of the mine.