岱庄生建煤矿31321孤岛工作面安全开采技术

摘要

根据岱庄生建煤矿31321 孤岛工作面煤层赋存情况及地质条件,设计了工作面巷道断面与支护方式,确定了工作面顶板支护及顺槽内超前支护方法,探讨了工作面过旧巷、断层的具体方案,提出了安全开采技术对策.%According to the occurrence and geological conditions of the coal seam in the island working face of 31321, the section and support mode of the working face roadway are designed, and the method of the front-plate support and the forward support method in the smooth groove are determined. This paper discusses the concrete scheme of overworked roadway and fault, and puts forward some countermeasures.