大同市焦煤矿公司一矿工作面防治水技术研究

Study on Water Prevention and Control Technology in Coal Working Face

以大同市焦煤矿公司一矿为研究背景,系统分析以往地质水文工作及其存在的问题,针对矿井4^(#)、5^(#)、8^(#)煤层开采的充水特征和水害威胁程度,结合矿井近几年采掘衔接计划,提出煤层底板高压灰岩水带压开采技术、掘进巷道和采掘工作面防治水措施,重点阐述了瞬变电磁法、激发极化法、可控源音频大地电磁法在探测煤矿老空区积水中的应用,为煤矿防治水工作提供指导和参考。

Taking No.1 Coal Mine of Datong Coking Coal Mine Company as the research back⁃ground,the previous geological and hydrological work and its existing problems are systematically ana⁃lyzed.In view of the water filling characteristics and water hazard threat degree of the 4^(#),5^(#)and 8^(#)coal seams in the mine,combined with the mining and excavation connection plan of the mine in recent years,coal seam floor high-pressure limestone water mining technology under pressure,the water prevention and control measures for the tunneling roadway and the mining face are put forward,and applications of tran⁃sient electromagnetic method,induced polarization method and controllable source audio frequency mag⁃netotelluric method in detecting water accumulation in old goaf of coal mine are expounded,which pro⁃vides guidance and reference for the prevention and control of water in the coal mine.