中峪井田高瓦斯突出煤层群保护层优选方案确定

The optimum selection scheme of protective layer of high gas outburst coal seam group in zhongyu mine field is determined

保护层的优选是煤防治煤与瓦斯突出重点研究内容之一,中峪井田为新设计矿井,准确确定首采保护层尤为重要,通过分析中峪井田主采煤层的空间分布及瓦斯物理参数,确定合适的保护层优选方案,即优先选择1#煤层作为保护层开采,在矿井开拓后期,向深部延延深时,可以选择11#煤层作为保护层开采。计算的结果将为中峪井田进行开拓开采及瓦斯治理设计提供重要的理论依据。

The optimization of protective layer is one of key research content of coal and gas outburst prevention coal,in the valley designs for the new mine mining field,the accurate determination of initial mining protective layer is particularly important,through the analysis of meiyukou well house came working bed of physical parameter spatial distribution and gas,determine appropriate protective layer optimization solution,namely the priority 1#coal seam mining,as a protective layer in mine development later,to the deep delay deep,you can choose 11#coal seam mining as a protective layer.The calculated results will provide important theoretical basis for the development and exploitation of zhongyu mine field and the design of gas treatment.