摘要
开滦集团公司东欢坨矿受水害威胁严重,采用矿井高分辨直流电法勘探方法对该矿2286工作面进行了水文地质探测,查清了8煤层顶板上80 m内的主要含水、导水构造的分布规律,对8煤层顶板上隔水层厚度、富水性及上下连通情况等作出了定性评价,并对潜在导水通道作出预测。得出结论:2286工作面运输巷、回风巷、切眼顶板共有4处主要异常,2、4号异常区的范围较大且异常幅度较大,局部存在上下连通趋势,推断顶板含水层富水性较好。
Donghuantuo Mine of Kailuan Group Co. ,Ltd. is seriously threatened by water hazard. Hydrogeology exploring was carried out on 2286 working face by adopting high-distinguished direct current method in mines, the distributed regulations of primary contai- ning water and water conductive structures were obtained within the scope of 80 m over 8 coal roof with the method. Qualitative evalua- tion was carried out,including water-resisting layer,watery,connected circumstance up and down and so on over 8 coal roof. Latent lead- ing water passways were also predicted. The conclusion was drawn that, four anomaly areas exist in headentry, return airway and open-off cut in roof on 2286 working face, the range of No. 2 and No. 4 anomaly area is wider than others, and the connected circumstance up and down may exist in some areas, the water abundance of the roof aquifer is forecasted to be good.
出处
《中州煤炭》
2013年第3期27-29,39,共4页
Zhongzhou Coal
关键词
高分辨直流电法
低阻异常区
探测
防治水
high-distinguished direct current method
low resistance anomaly area
detection
water prevention and cure
