浊漳河下煤层开采覆岩导水裂缝带发育特征分析和研究

Analysis and Research on Development Characteristics of Overburden Water Guide Fracture Belt in Lower Coal Seam Mining in Zhuozhanghe River

为保证大平煤业井田北部浊漳河下压覆煤炭资源安全开采,结合矿井实际情况,采用RFPA来进行数值模拟,研究了采区上覆岩层受采动运动破坏规律,结合矿井地质、水文地质及开采技术条件,分析了综放开采覆岩破坏及导水裂缝带发育规律,研究水体下综放开采可行性,为矿井的安全、正常生产,提供了地质基础保障,提高了煤炭资源的利用率和回收率,为近水体下安全采煤技术和同区域相同的地质、水文地质类型的矿井提供技术参考。

In order to ensure the level of coal field in northern Zhuozhanghe down safety mining of coal resources, in combination with the practical situation of the mine, using RFPA for numerical simulation of the mining area are studied by mining overlying strata movement damage rule, combining the mine geological, hydrological geological and mining technical conditions, analysis of the overlying rock destruction of full-mechanized caving mining and development rule of the water flowing fractured zone study feasibility of full-mechanized caving mining under water, the normal production of mine safety,and provides the geological basis for security, improve the utilization of coal resources and recovery,This paper provides a technical reference for the safety coal mining technology under the water body and the mine with the same geological and hydrogeological types in the same area.