小基载比大采高下导水裂隙发育高度分析

Analysis of the Development Height of Water Conducting Fissures under Small Base Load Ratio and Large Mining Height

为研究金家渠煤矿3煤覆岩破断及导水裂隙发育规律,为矿区预防性水体保护开采提供便利,基于金家渠煤矿3煤的工作面地质条件,采用理论分析与物理模拟,研究分析了工作面的覆岩破断特征、矿导水裂隙发育高度,为工作面防治水以及地表水保护提供理论依据。

In order to study the development law of overlying rock fracture and water conducting fissures in the 3th coal of Jinjiaqu Coal Mine,and to provide convenience for preventive water body protection mining in the mining area,based on the geological conditions of the working face of the 3th coal seam in Jinjiaqu Coal Mine,theoretical analysis and physical simulation are used to study and analyze the characteristics of overlying rock fracture and the development height of water conducting fissures in the working face,providing a theoretical basis for water prevention and control and surface water protection in the working face.