第46卷第8期2023年8月专题·矿井水害探测与防控井下多分支钻孔治理导水断层技术研究与应用煤炭与化工CoalandChemicalIndustryVol.46No.8Aug.2023肖骞，王博，刘卫卫（中煤科工西安研究院（集团）有限公司，陕西西安710077）摘要：针对唐家会矿井下存在的DF201导水断层影响61202工作面回风顺槽安全掘进的问题，为查明断层导水情况，消除突水威胁，合理布置该工作面，采用定向钻进技术对DF201断层进行探查治理，累计施工底板定向钻孔11个，总进尺2544m，证实该断层导通底板奥灰水。通过钻孔注浆工艺封堵导水断层及裂隙，累计注入水泥431.85t，断层附近的总出水量减小为约10m/h，有效降低了断层突水风险，为巷道安全掘进提供了有利保障。关键词：导水断层；定向钻进技术；奥灰水；钻孔注浆中图分类号：TD74Researchandapplicationofundergroundmulti-branchdrillingtechnologyforwaterconductingfaultcontrolXiaoQian,WangBo,LiuWeiwei(ChinaCoalTechnologyandEngineeringXi'anResearchInstitute(Group)Co.,Ltd.,Xi'an710077,China)Abstract:AimingattheproblemthattheDF201waterconductingfaultinTangjiahuiMineaffectedthesafeexcavationofthereturnairroadwayofNo.61202Face,inordertofindoutthewaterconductingconditionofthefault,eliminatethethreatofwateroutburst,andreasonablyarrangetheworkingface,thedirectionaldrillingtechnologywasusedtoexploreandcontroltheDF201fault.Atotalof11directionaldrillingholesweredrilledinthefloor,withatotalfootageof2544m,whichconfirmedthatthefaultconductedtheOrdovicianlimestonewaterinthefloor.Throughthedrillinggroutingprocess,thewaterconductingfaultsandcracksweresealed,and431.85tofcementwasinjectedcumulatively.Thetotalwateroutflownearthefaultwasreducedtoabout10m3/h,whicheffectivelyreducedtheriskofwateroutburstfromthefaultandprovidedafavorableguaranteeforthesafeexcavationoftheroadway.Keywords:waterconductingfault;directionaldrillingtechnology;Ordovicianlimestonewater;drillinggrouting文献标识码：B文章编号：2095-5979（2023）08-0071-03唐家会井田位于鄂尔多斯盆地东北缘的准格尔1概况煤田东孔兑普查区西南部，构造位于华北地台北煤矿井下定向钻进技术目前已广泛应用于矿井缘，属山西地台背斜与鄂尔多斯地台向斜的过渡地质保障领域，为煤矿安全生产、矿...
