正善煤矿底鼓机理与治理技术研究
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摘要
以正善煤矿2201首采工作面为研究对象,分析了回风巷与运输巷道底鼓出现的机理,并采用RFPA数值模拟软件分析了自重应力与构造应力对巷道底鼓量的影响。采用开掘卸压槽、底板锚杆锚索支护、底板注浆加固的措施治理巷道底鼓,实践证明具有良好的效果。
Taking the 2201 first mining face of Zhengshi Coal Mine as the research object, the mechanism of floor heave in return air roadway and transportation roadway is analyzed, and the influence of self-weight stress and tectonic stress on floor heave is also analyzed by RFPA numerical simulation software. For the floor heave in roadway, measures such as excavating pressure relief trough, supporting with anchor bolts and cables on the floor and grouting to reinforce floor are adopted. The practice proves that the measures bring good results.
Taking the 2201 first mining face of Zhengshi Coal Mine as the research object, the mechanism of floor heave in return air roadway and transportation roadway is analyzed, and the influence of self-weight stress and tectonic stress on floor heave is also analyzed by RFPA numerical simulation software. For the floor heave in roadway, measures such as excavating pressure relief trough, supporting with anchor bolts and cables on the floor and grouting to reinforce floor are adopted. The practice proves that the measures bring good results.
引文
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[3]华心祝,杨朋.深井大断面沿空留巷底板变形动态演化特征研究[J].中国矿业大学学报,2018,47(03):494-501.
[4]任旭可.深部软岩巷道采动影响下“双壳”力学模型及底鼓治理研究[D].河北工程大学,2018.
[5]张建林.软岩巷道底鼓综合治理技术研究及应用[J].煤炭工程,2018,50(03):50-52.
[6]江东海,李恭建,马文强,等.复杂节理岩体巷道非均称底鼓机制及控制对策[J].采矿与安全工程学报,2018,35(02):238-244.
[7]侯明阳.软岩大变形巷道底鼓控制技术研究[J].煤,2018,27(03):1-3+25.
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