1) underlie coal seam
下伏煤层
1.
To solve the difficulties of mining the coal seams underlie the-115 main entry without destroying the main entry in the Quangou coal mine,the simulation analysis of surrounding rock movement regularities of the main roadway with the underlie coal seams mined was carried out.
针对泉沟煤矿要采出-115大巷下压煤,同时要保证上部的大巷正常使用的技术难点,进行了下伏煤层开采大巷围岩活动规律的模拟分析。
2) minable coal-beds below
下伏可采煤层
1.
According to the biggest height of the risking zone and the transmitting fissure zone,the disastrous areas while exploiting the minable coal-beds below in the coming years are predicted.
本文依据井田范围内采空积水调查资料,探讨了采空积水的贮存分布规律,并采用冒落带及导水裂隙带最大高度的计算方法,预测了未来开采下伏可采煤层造成的漏水灾害区。
3) underlaying bed
下伏层
4) underburden
下伏岩层
补充资料：消伏
1.消除。
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