典型高强度开采矿区保水采煤关键技术与实践

神东矿区是我国重要的煤炭生产基地和典型的高强度开采矿区,同时也是我国典型的干旱半干旱生态环境脆弱区,矿区高强度煤炭生产与生态环境的协调发展是该区的重要研究课题。针对神东矿区干旱半干旱地区水资源贫乏、生态环境脆弱等特点,通过研究矿区水文地质结构特征、煤层覆岩结构类型等,提出了矿区的水文地质结构分区和保水采煤分区;以此为基础,针对不同的水文地质结构类型,提出了神东矿区的保水采煤的基本原则,以及矿区重要水源地、厚基岩含水层、烧变岩含水层、水资源转移存贮、矿井水资源化利用等保水采煤的关键技术;最后,结合典型矿井,开展了上述关键技术的现场工程实践,并取得了良好的应用效果。

Water-preserved mining technology and practice in typical high intensity mining area of China

Shendong mining area is a China’s important coal production base and a typical high intensity mining field，which is also a typical fragile ecological environment of arid and semi-arid areas.The coordinated development of coal production and ecological environment in high intensity mining area is an important research topic in the area.Aiming at the lack of water resource in arid and semi-arid,fragile ecological environment in Shendong mining area,this paper puts forward the partition of hydrogeological structure and the water-preserved mining by studying the structure characteristics of hydrological geology,coal strata structure type,etc.On this basis,according to different hydrogeological structure types,it puts forward the key technologies of water-preserved mining such as coal mining important water source area in mining area,thick bedrock aquifer,burning rocks aquifer and thin bedrock aquifer and the use of mine water resources.Finally,combining with the typical mine,it applies the key technologies into engineering practice and achieves a good application effect.