不渗透的岩层都称为隔水层。
淮北临涣矿区的冲积层由三个隔水层和四个含水层组成。
The alluvial of Linhuan mine area in Huaibei consists of tour aquifers with three water resisting layers.
区内含、隔水层组成复杂，由四个含水层和三个隔水层组成。
目前，在地下水开发工作中，国内不少地区有泥灰岩作为隔水层或弱透水层。
At present, in the work of groundwater exploitation marlite has been regarded asaquiclude or bad permeable stratum in many internal areas in China.
单侯矿井水文地质条件比较复杂，下部煤层受奥灰水威胁，薄隔水层带压开采问题非常突出。
The hydrogeologic condition of Danhou mine is complex, and the sublevel coal is threatened by O. L. water. It is very difficult that thin confining bed coal is mined under pressure.
特别地，当边界淤泥层为隔水层时，本文的解也可用来描述有潮河流下的承压含水层中的水头波动情况。
Particularly, the solution for impermeable silt-layer can be used to describe the tidal fluctuation in a confined aquifer under a tidal river separated by an impermeable layer.
运用突变理论的分析方法，求得了井筒底板隔水层的最小理论安全厚度，这与典型案例实际情况基本相符。
The minimum theoretical safe thickness of the water-resisting layer at shaft floor was obtained according to the analysis of the catastrophe. The computed result tallied with the actual situation.
将奥陶系顶部相对隔水层作为整个煤层底板隔水层的一部分进行底板突水危险性评价，可以使评价结果更准确。
Overall, accuracy of risk assessment on floor water-inrush can be improved by considering the relative water-resisting strata in Ordovician top as part of the whole ones.
本文综合考虑水源、水压、隔水层、断层等因素对煤层底板突水的影响，建立了煤层底板突水人工神经网络预测模型。
This paper considers comprehensively water source, water pressure, impedance water strata, and fault ectal factors to establish a ANN forecast model for water-inrush from coal floor.
在底板高压岩溶含水层上且靠近较大断裂构造弱面采矿时，隔水层段的残余厚度和断裂的采动活化程度是能否突水的关键因素。
The residual thicknesses of aquifuge and mining reactivations of the fault are the key factors to control the water inrush when mining is near the large-scale fault with karst aquifer under the floor.
在底板高压岩溶含水层上且靠近较大断裂构造弱面采矿时，隔水层段的残余厚度和断裂的采动活化程度是能否突水的关键因素。
The residual thicknesses of aquifuge and mining reactivations of the fault are the key factors to control the water inrush when mining is near the large-scale fault with karst aquifer under the floor.
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