江西煤炭科技2023年第1期摘要：西冯街矿3402工作面回采期间采空区涌水量剧增，三维地震勘察结果表明，底板岩层内存在明显的破碎带。物理相似模拟研究表明，破碎带影响下底板采动裂隙带发育深度达到24m，采动裂隙带、破碎带内裂隙相互联通形成导水通道。设计底板原位改性技术进行治理，结合底板岩层综合柱状图设计注浆层位，注浆改造后采空区涌水量减小幅度达到67.9%，堵水效果良好，实现了底板奥灰含水层带压保水开采。关键词：回采工作面；底板异常涌水；相似模拟实验；隔水层注浆加固；奥灰水中图分类号：TD745文献标识码：A文章编号：1006-2572（2023）01-0142-04PreventionandControlofAbnormalWaterInflowinGoafat3402WorkingFaceinXifengjieCollieryWeiJinwen(XifengjieCoalIndustryCo.,Ltd.,YangtaiGroupIndustrialCo.,Ltd.,Jincheng,Shanxi048100)Abstract:Aimingatthesharpincreaseofwaterinflowduringtheminingperiodofthe3402workingfaceofXifengjieColliery,thediscoveryofobviousfracturezoneinthefloorstratumthrough3Dseismicsurveyandawaterconductionchannelformedduetotheinterconnectionoftheminingfissurezoneandthefissuresinthecrushingzonewith24metersdevelopmentdepthinfloorminingfissurezoneundertheinfluenceofthefracturezonethroughphysicalsimilaritysimulation,theauthorproposesthefloorin-situmodificationtechnologywiththegroutinglayerdesigncombinedwiththecomprehensivecolumnchartofthefloorrockformation,whichcanreducethewaterinflowinthegoafaftergroutingtransformationby67.9%withgoodwaterblockingeffectandrealizethewater-preservedminingunderpressureinOrdovicianlimestoneaquifer.Keywords:workingface;abnormalwaterinflowinfloor;similarsimulationexperiment;groutingreinforcementinaquiclude;Ordovicianlimestonewater西冯街矿3402工作面采空区异常涌水防治研究卫晋文（山西阳城阳泰集团西冯街煤业有限公司，山西晋城048100）1工程概况西冯街煤业3402综放工作面位于矿区北部，回采区地表位于引渠村以东668～815m，采动区域内地表为山地，无河流，地势呈南高北低，开采范围及其四周120m范围内无任何建筑物。3402综放工作面井下位于四盘区胶带巷左翼160～310m处，开采的3#煤层属二叠系下统山西组，煤层厚度平均5.93m。地面标高从+1090～+1187m，井下煤层底板标高+480～+530m。2工作面水文...
