【摘要】 对与煤伴生的煤系硫铁矿床在煤层采空区下开采时采场顶板控制方式及支护参数等问题进行了探讨，以寻求提高回收率及安全生产的途径。更多还原

【Abstract】 his paper discusses the problems of roofcontrol and parameters of support in the stope when the pyritic deposit in coal series is mined under the depletion region of accompanying coal bed,so as to seek for the ways to increase its recovery and achieve safty in production.更多还原