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小纪汗煤层为主含水层力学成因的试验探究

Coal Technology(2018)

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Abstract
我国榆横矿区小纪汗煤矿首次发现一种开采煤层为高承压含水层的特殊地质现象.基于煤层为主含水层矿井的地层赋存、煤层赋存和水文地质等特征的研究基础,通过试验研究煤层具备含水层特征的力学成因.选取小纪汗煤矿BS5号钻孔9个典型地层的煤岩样进行单轴压缩、巴西劈裂及三轴压缩,得到了煤岩样的抗压强度、弹性模量、泊松比、抗拉强度、内聚力和内摩擦角.所得结论为揭示煤系地层煤层作为主含水层的成因提供试验参考.
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