坚硬顶板综放工作面通风系统优化改造分析与实践

Analysis and Practice of Ventilation System Optimization in Fully Mechanized Top Coal Caving Face with Hard Roof

针对高瓦斯特厚煤层综放开采工作面,坚硬顶板的垮落对采场瓦斯涌出与冲击地压有决定性作用。根据宽沟煤矿综放工作面布置参数,必须施工不同的工艺巷采取超前爆破深孔预裂爆破的技术处理顶板,基于不同的工艺巷布置条件,对工作面通风系统进行了优化、改造以及实践。为工作面通风、瓦斯防治、顶板处理提供理论依据和技术支持。

For the fully mechanized top coal caving mining face in high gas and extra-thick coal seam, the collapse of the hard roof has the decisive effect on the gas emission and the rock pressure. According to the layout parameters of the fully-mechanized top-coal caving face in the wide-width coal mine and the hard roof treatment, different technology lanes must be used to treat the roof by advanced blasting deep hole pre-splitting blasting technology, and the working face ventilation system based on different craft lane arrangement conditions is studied Optimization, transformation and practice. It will provide the theoretical basis and technical support for ventilation, gas control and roof treatment of the working face through the working face ventilation system.