恒兴煤业复合顶板结构及其对支护影响研究

Shandong Coal Science and Technology(2015)

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Abstract
恒兴煤业3号煤层3201工作面运输平巷位于2号煤层采空区下,两煤层层间距、层间岩性变化大,巷道顶板岩层组合结构复杂,巷道支护难度大。通过现场钻孔取芯、岩石力学性质实验和理论分析等方法,分析3号煤层巷道复合顶板结构、破坏特征以及对巷道支护形式和参数的影响关系。
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