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３．２ｍ煤层单体液压支柱支护一次采全高徐州矿务局张集煤矿孙立亚，刘益成近年来，我矿主采的东翼地区９－＇层煤厚度在２．５～３．５ｍ之间的占矿井总产量的８０％以上。按一般分层采煤法，存在着巷道掘进量大、单产效率低、安全生产条件差等方面的问题。为解决上述问...
3.2m煤层单体液压支柱支护一次采全高
【摘 要】
：
３．２ｍ煤层单体液压支柱支护一次采全高徐州矿务局张集煤矿孙立亚，刘益成近年来，我矿主采的东翼地区９－＇层煤厚度在２．５～３．５ｍ之间的占矿井总产量的８０％以上。按一般分层采煤法，存在着巷道掘进量大、单产
【机 构】
：
徐州矿务局张集煤矿
【出 处】
：
煤炭科学技术
【发表日期】
：
1994年11期
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