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煤层底板隔水层隔水能力是影响带压开采安全性的重要因素。以往，人们偏重于对隔水层岩性、厚度及组合情况等宏观特征研究。文中从微观研究入手，结合宏观研究探讨隔水层隔水能力研究方法，
Water barrier capacity of coal floor aquifuge is an important factor affecting the safety of pressure mining. In the past, emphasis has been placed on macroscopic characteristics such as lithology, thickness and composition of aquitards. Beginning with the microcosmic research and combining the macroscopic research, this paper discusses the research methods of water barrier capacity of aquitards,