余吾煤业综放工作面窄煤柱合理宽度留设研究

Study on the Reasonable Width of the Narrow Coal Pillar in Yuwu Coal Industry

文章针对余吾煤业S2105综放工作面在双"U"型通风方式条件下合理煤柱宽度留设问题,综合运用理论分析与数值模拟的方法进行了优化研究,有效解决了回采巷道围岩破碎等技术难题,提高了煤炭产出率,取得了良好的经济技术效果,满足了现代矿井高产高效的要求,对余吾煤业其他类似条件下综放工作面合理煤柱宽度留设具有重要的指导意义。

Aiming at Yuwu Mining S2105 fully-mechanized sublevel caving mining working face under the condition of double"U"type ventilation method reasonable width of coal pillar design problem,the integrated use of theoretical analysis and numerical simulation methods are optimized,effective technical difficulties are solved such as broken surrounding rocks of gateways,improving the coal output,achieved good economic and technical effect,can meet the requirements of modern high production and efficiency mine,for more than our other similar coal reasonable width of coal pillar of full-mechanized caving mining face under the condition of design has an important guiding significance.