麻黄梁矿充填开采对地表环境的影响规律研究

Study on Law of Filling Mining on Surface Environment in Mahuangliang Mine

为了保证“三下”压煤的安全、高效开采,降低“三下”开采对地表设施和生态环境的影响,以麻黄梁矿为背景,基于UDEC数值模拟与实际观测对建筑物下条带充填开采的可行性进行了分析,并对地表建筑物和地表生态环境的影响作用进行了分析。结果表明:目前采用的“采8留24”条带充填开采技术可以满足矿山安全高效的生产;充填开采对麻黄梁矿区地表建筑物以及工业场地的影响较小,下沉量约10 cm,与实际监测结果相近,保障了开采安全。研究成果将对提高煤炭资源采出率,延长矿井服务年限,促进矿区的可持续发展具有重要的指导作用。

In order to ensure the safe and efficient mining of the filling mining under buildings,water bodies and railways,and reduce the impact on the surface facilities and ecological environment.Taking Mahuangliang Mine as the background,based on UDEC numerical simulation and actual observation,the feasibility of strip filling mining under buildings was analysised,finally the subsidence of surface buildings was analyzed.The results shows that the"mining 8 leaving 24"strip filling mining technology can meet the safe and efficient production.Filling mining has little impact on surface buildings and industrial sites in Mahuangliang mining area,and the subsidence is about 10 cm,which is similar to the actual monitoring results and ensures the safety of mining.The results will play an important guiding role in improving the recovery rate of coal resources,extending the service life of the mine,and promoting the sustainable development of the mining area.