Comparative experimental investigation of chemical grouting into a fracture with flowing and static water.pdfVIP
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Comparative experimental investigation of chemical grouting into a fracture with flowing and static water.pdf
MiningScienceandTechnology(China)21(2011)201—205
COntentslistsavailableatScienceOi~=
Min!ngScieneeandTeeh~010gy a
/urnal omepage:www elsevietieom /Iobate/mstC ■
Comparative~experimentalinvestigationofchemicalgroutinginto
afracturewithflowingandstaticwater
ZhangGailing 一.ZhanKaiyu 一,GaoYue ,W angW enxue
StateKeyLaboratoryofGeomechanicsandDeepUndergroundEngineering,SchooloiResourcesandGeosciences.ChinaUniversityoiMining8Technology,Xuzhou221008,China
ChongqingDesignResearchInstitute,SinoCoalInternationalEn#neeringCroup.Chongqing400016,China
A R T IC L E IN F 0 A B S T R A C T
Articlehistory: 。 Wepresentaseriesofexperimentaltestsonchemicalgroutingintoafracturewithflowingands~tic
Received2August2010 water,usingatransparentrfacturegroutingexperimentaldevice.Variationsofseepagepressureand
ReceivedinrevisedfoITn
groutpropagationwerecompared inourinvestigation.Theresultsshow thatflowingwaterresultsin
13September2010
dropsofseepagepressure.developmentofpenetrationradiiintheupstream sideanddropsofpropa—
Accepted11October2010
gationareaduringthesameperiod.comparedwithgroutinginstaticwater.111epropagation areain
staticwaterisalwaysroundbeofregroutsreachthejointboundaries.However,thepropagationshape
changesfrom roundt0an ellipticshapeforgroutingintoafracturewithflowingwater.Atheoretical
Keywords:
modelofrthegroutpenetrationradiusinarfactureconsidering flowingvelocitywasdeveloped and
Rock
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