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在井田开拓设计及矿井生产过程中,往往遇到煤系地层下伏奥陶系石炭岩含水层。此类含水层大多是承压水层,水压较大。当煤层与含水层间距较近时,就需对防水煤柱慎重考虑,合理确定防水煤柱的尺寸。本文以永阳煤矿实例对下伏奥灰含水层的防治作一探讨,以达到抛砖引玉的目的,不妥之处请同志指正。
In minefield design and mine production process development, often encountered in coal-bearing strata beneath the Ordovician carboniferous aquifer. Most of these aquifers are confined aquifers, water pressure. When the distance between coal seam and aquifer is relatively close, it is necessary to consider carefully the waterproof coal pillar and reasonably determine the size of waterproof coal pillar. In this paper, Yongyang Coal Mine on the case of the underlying Austrian gray aquifer prevention and control to make a discussion in order to achieve the purpose of attracting valuable advice, the wrong place, please comrades correct.