复杂水文地质条件下断层活化出水防治水技术研究

Study on water control technology of fault activated effluent under complex hydrogeological conditions

井下的采掘活动会造成地层错动变化,特别是断层发育、交汇地区,巷道初次揭露断层无任何水文异常,但经过巷道来压影响易造成断层带处活化,含水层水易通过断层裂隙向外涌水,且易发生底鼓、片帮现象,造成安全事故。本文以邢台矿为例,介绍了在51121工作面运输巷处理断层交汇处断层活化造成底鼓出水的有效治理方法,为今后处理类似情况提供借鉴经验。

Underground mining activities will cause strata dislocation changes,especially in the areas where faults are developed and intersected.No hydrological anomaly is found in the first time when the fault is exposed by the roadway.However,after the influence of roadway pressure,it is easy to activate the fault zone.The aquifer water is easy to flow outward through the fault fissures,and it is prone to floor heave and rib spalling,resulting in safety accidents.Taking Xingtai Mine as an example,this paper introduces the effective treatment method of floor heave water caused by fault activation at the intersection of faults in the transportation roadway of 51121 working face,which provides reference for future treatment of similar situations.