煤层底板改造与注浆效果评价--以九龙矿15252下块工作面为例.pdfVIP

Abstract

Coal,asthemainenergysourceofChinasproductionandindustrialdevelopment,

isanimportantenergysupportfortherapiddevelopmentofChinassociety.Therefore,

coalminingisveryimportant,butwiththecontinuousconsumptionofcoalresources,

shallowcoalminescannolongermeettheneedsofhigh-speedsocialdevelopment,and

peopleneedtodigdeepercoalmines.Deepcoalminesaremoreaffectedbygeological

conditions.Duringmining,gasexplosions,roadwaywaterinrush,formationcollapse

andothergeologicaldisastersareoftenencountered.Therefore,itisparticularly

importanttostudyandsolvethegeologicaldisastersencounteredinthesemining.This

thesismainlystudiesthesecondlargestgeologicalhazardminefloodingproblemin

coalmining.ThisthesistakestheworkingfaceofthelowerpartofKowloonMineas

theresearchobject.Throughtheanalysisofthegeologicalandhydrogeological

conditionsofthemine,thegeologicalsituationofthemineisjudgedandsummarized,

andthenbasedontheregionaltreatmenttechnologyofthewaterinrushcoefficient

method,thegroutingmethodisusedtostrengthenandtransformthebottomplateofthe

coalseam,thusreducingthewater-richnessofthecoalseamandformingarelative

Waterprooflayertomeetthesafeminingofcoal.

Inthestudyofregionalcontrol,beforemining,thestrataweredetectedand

analyzedbyusingtheintegratedgeophysicalmethodandotherdetectionmethods,and

thewaterinrushvolumewaspredictedbyusingtheanalogymethod,duetothe

influenceofDF15-1faultandthejointactionofgroundpressureandwaterpressure,the

primaryfloorcrackexpands,andthewaterinthe