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徐庄煤矿主采7、8煤层,8煤层在7煤层下方,层间距为0～20 m,两煤层均为易燃煤层.8煤历次回采过程中,矿压显现、煤炭自然发火问题突出.8215工作面在设计及施工过程中,打破常规,通过改变工作面推进方向,改进上、下巷的支护形式,实施综合防灭火技术,使工作面在火区及动压下安全回采.
火区及动压下煤层开采技术的应用
【摘 要】
：
徐庄煤矿主采7、8煤层,8煤层在7煤层下方,层间距为0～20 m,两煤层均为易燃煤层.8煤历次回采过程中,矿压显现、煤炭自然发火问题突出.8215工作面在设计及施工过程中,打破常规,通
【机 构】
：
江苏煤矿安全监察局徐州监察分局
【出 处】
：
煤矿安全
【发表日期】
：
2006年5期
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