摘要
大同煤田是我国主力煤炭基地,赋存侏罗纪和石炭-二叠纪煤层,现侏罗纪煤炭资源开发接近尾声,正逐步转入石炭-二叠纪煤层开采,其开采的水文地质条件出现了较大变化,矿井充水因素急需进一步查清。通过对大同煤田部分石炭-二叠系矿井水文地质条件和防治水工作进行分析研究,得到以下结论:①对于侏罗系采空区积水可以采用立体探测,综合探放技术手段予以治理;②底板岩溶水需加强对隐伏构造的探测和研究,条件具备的矿井可实施重点区域注浆封堵和改造。
Datong coalfield is the main coal base in China,which hosts Jurassic and Carboniferous-Permian coal seams.Now the development of Jurassic coal resources is coming to an end.It is gradually transferring to Carboniferous-Permian coal seam mining.The hydrogeological conditions of its mining have changed greatly,and the mine water-filling factors need to be further clarified urgently.Based on the analysis and study of the hydrogeological conditions and water control work of some Carboniferous-Permian mines in Datong Coalfield,this paper concludes that①three-dimensional detection and comprehensive exploration and drainage technology can be used to control the water accumulation in Jurassic goaf;②the detection and research of the underlying structure should be strengthened in the floor karst water,and the key areas can be blocked and reformed by grouting in the mine where the conditions are available.
作者
王锋利
Wang Fengli(Bureau,of Hydrogeology,CNA CG,Handan 056004,China)
出处
《煤炭与化工》
CAS
2019年第11期68-71,共4页
Coal and Chemical Industry
关键词
大同煤田
立体探放
综合探测
区域治理
Datong Coalneld
Stereoscopic water exploration and drainage
Integrated detection
Regional Governance
