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以矿区煤田地质勘探水文地质资料为基础,结合具体工程地质条件分析了彬长矿区地层结构及其含水性;利用物理模拟方法研究了复合型水体下综放工作面采动过程中覆岩冒落带与裂隙带裂隙、导水通道形成、分布特征。结果表明,覆岩周期破坏形成离层和垂向破断裂隙,随工作面的推进岩层运移裂隙挤压闭合,在沿走向方向上形成局部闭合区、裂隙发育区,在开切眼及工作面附近易形成贯通导水裂隙成为透水通道,特厚煤层综放开采导水裂隙带发展高度约为采高的17～18倍,为工作面顶板控制及水害防治提供依据。
Based on the geological exploration hydrogeological data of the coalfield, the stratigraphic structure and water content of the Binchang mining area are analyzed in combination with the specific engineering geological conditions. The sedimentation of the overlying strata during the mining process of the fully mechanized top-coal caving face under the compound type of water is studied Formation and distribution of fissures and channels in the belt and fracture zone. The results show that the overlying strata and vertical fractured fissures are formed during the overburden cycles, and the fractures are closed and formed along the strike direction along with the advance of the working face. In the open face and working face Near the formation of water through the fissures into a permeable channel, fully mechanized top coal caving mining waterflooding fractured zone development height of about 17 to 18 times the mining height, for the roof control and water hazard prevention provide the basis.