BOUNDARIESOFROCKMECHANICS BALKEMA–ProceedingsandMonographs inEngineering,WaterandEarthSciences PROCEEDINGSOFTHEINTERNATIONALYOUNGSCHOLARS’SYMPOSIUMONROCK MECHANICS,28APRIL–2MAY,2008,BEIJING,CHINA Boundaries of Rock Mechanics Recent Advances and Challenges for the 21st Century Editors Meifeng Cai Jin’an Wang ISRMCommissiononEducation Taylor&FrancisisanimprintoftheTaylor&FrancisGroup,aninformabusiness ©2008Taylor&FrancisGroup,London,UK TypesetbyVikatanPublishingSolutions(P)Ltd.,Chennai,India PrintedandboundinGreatBritainbyAntonyRowe(ACPI-groupCompany),Chippenham,Wiltshire. Allrightsreserved.Nopartofthispublicationortheinformationcontainedhereinmaybereproduced,stored inaretrievalsystem, ortransmittedinanyformorbyanymeans, electronic, mechanical, byphotocopying, recordingorotherwise,withoutwrittenpriorpermissionfromthepublisher. 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Publishedby:Taylor&Francis/Balkema P.O.Box447,2300AKLeiden,TheNetherlands e-mail:[email protected] www.taylorandfrancis.co.uk/engineering,www.crcpress.com ISBN:978-0-415-46934-0(hbk) BoundariesofRockMechanics–Cai&Wang(eds) ©2008Taylor&FrancisGroup,London,ISBN978-0-415-46934-0 Table of Contents Preface XV Organization XVII Acknowledgements XIX Fieldinvestigationandinstrumentation Stressfieldcharacteristicsandpredictionofrockburstinthetunnelarea fromMakerivertoKekeriverinthewestlineofSNWDP 3 M.F.Cai,X.O.Xia,H.Peng&X.M.Ma Identificationofgeologicalinterfacesfromdrillingprocessmonitoringingroundinvestigation 7 W.Gao,J.Chen&Z.Q.Yue SurfacemovementmonitoringandanalysisbasedonGIS 13 C.L.Li&X.L.Li InsitustressstateinengineeringareaofDali-Lijiangrailwayanditsimpactontherailwayproject 19 X.M.Ma,H.Peng&J.S.Li InsitustressmonitoringnetworkalongQinghai-Tibetrailway 23 H.Peng,Z.H.Wu&X.M.Ma StainmonitoringfortunnelusingdistributedopticalfiberBOTDRsensors 27 H.T.Qiu,C.Li,H.L.Cui,D.Zhang&Y.Ding StudyongroundstressdistributionlawinLongkouseaarea 31 B.Wang,Y.F.Gao,J.Y.Jia,F.Xing&Y.P.Zhang Acomparisonofevaluationofrockmassdeformationmodulusfromin-situmethod andindirectone(empiricalmethod)inParsiandamsite 35 N.S.Zadeh Rockpropertiesandmechanicalbehavior Stressandscaleeffectsofthehydraulicpropertiesoffracturedrocks 41 L.Jing&A.Baghbanan Experimentalstudyondeformationofdeepunsaturated-saturatedTuffinLancanglead-deposit 49 G.Z.Cao,Y.Qiang&F.Li Detectionofthinweakzoneinweatheredrocksfromautomaticmonitoringofpneumatic rotary-percussivedrilling 53 J.Chen,W.Gao&Z.Q.Yue StudyonporositychangesofLongyousandstoneunderchemicalcorrosion 59 Q.Cui,X.T.Feng,C.Q.Zhang,Q.Xue,H.Zhou&Z.H.Zhang Athermomechanicaldamageapproachofconstitutivemodelsanditsapplicationingeomaterials 67 X.Guo,D.J.Yuan,M.S.Wang&C.G.Zhao Numericallowerboundanalysisofstabilityproblemsofrockandsoilmasses 73 C.Q.Jia,Q.W.Huang&M.S.Huang V Dynamicresponsetoincidentbodywavesofcylindricalcavitiesinaporousmediumhalf-space 79 L.F.Jiang,Y.Y.Jiao&X.L.Zhang Elasto-plasticanalysisofjointedrockmassesusingthenumericalmanifoldmethod 83 J.Jiao&C.S.Qiao Rockmassesratingforcrushed,dressedandornamentstones 89 E.E.Kheirelseed,T.H.Ming&S.B.Abdalla Researchonrockmechanicsparametersbyusingcomprehensiveevaluationmethod ofrockqualitygrade-oriented 93 Y.Li,S.R.Wang,C.F.Wu,H.Q.Zhang&Z.F.Li SEMmicrostructureandSEMmechanicaltestsofswellingredsandstonein Guangzhoumetroengineering 99 B.Liu,L.G.Tao,T.Li,G.G.Qiao,J.Chen&J.H.Yan Applicationoflaserreal-timeHItoinvestigationofmesomechanicalbehaviorsofrock 105 D.M.Liu&Y.B.Zhou Theeffectofmeso-structureontemperaturedistributioninshalesubjecttofreeze-thawconditions 109 H.Liu&G.S.Yang Theinstallationmethodandtestofrockdeformationindeepboreholebyfiberbragggrating 115 J.X.Liu,J.Chai,L.Zhui,Y.Li,G.W.Zhang,J.H.Yang&Z.P.Wang NumericalstudyonsizeeffectofringspecimenunderBraziliantest 121 W.B.Liu,B.G.Liu&K.Y.Liu Laboratorycomparativetestsforgeomaterialstrengthswithdrillingprocessmonitoringtechnique 127 W.J.Lu,T.Y.Lau&Z.Q.Yue Experimentalinvestigationonmultidirectionalloadingunderdifferentinitialstressstatesinclay 133 M.T.Luan,Y.Nie,X.W.Tang,B.X.Liu,J.Y.Li&J.B.Fu Investigationofrockresistancecoefficientinrocksaroundtunnelbasedonunifiedstrengththeory 139 Q.Ma,J.H.Zhao&X.Y.Wei Eliminationofendfrictioninbiaxialtestingofcubicrocksamples 145 H.S.Mitri,X.Y.Yun&X.L.Yang Studyonthedominantfactorsforprimaryfissureformintheprocessofhydraulic fracturingincoalrock 151 X.M.Ni,Y.B.Wang,B.Z.Yan&Q.H.Hu Real-timeCTtestingofmeso-damageevolutionlawoffrozencrackedsandstoneunder uniaxialcompressionconditions 157 J.X.Ren&H.Liu Studyofsimilarityrecognitionofdrillingparametersinweatheredgraniteformations 161 Z.Y.Tan,M.F.Cai&S.J.Wang Stresssolutionsforaninhomogeneousplanestraintransverselyisotropicrock subjectedtohorizontalandverticallineloads 167 C.D.Wang&J.Y.Hou PrecisionanalysisofdiscontinuityorientationobtainedwithDCRP 173 F.Y.Wang,J.P.Chen&B.F.Shi Numericalsimulationofrockfractureprocessundertension 179 L.G.Wang,N.Zhao,L.L.Zhang&Y.F.Zhou Experimentalstudyondynamicbehaviorofunsaturatedsiltyclay 185 M.Wang,Q.Yang,G.Q.Kong&M.T.Luan VI Characterizationofmechanicalpropertiesofrocksbymicroindentationtest—Anewmethod fortestingrockproperties 191 W.Wang,W.Y.Xu,S.Corn&P.Ienny Numericalsimulationofacousticemissionandstrainenergydecreaseofrockspecimens withdifferentdegreesofpre-existingrandomimperfections 197 X.B.Wang Studyonjudgesystemoffuzzyinferencetoclassificationoftunnelsurroundingrock 203 X.R.Wang,Y.H.Wang&S.H.Zhang Researchonultrasoniccharacteristicsofsandstoneafterheatingtohightemperature 207 G.Wu&S.Liu Studyoncrackinitiationmechanismofbrittlerockunderpressurehead 213 K.S.Wu,J.F.Gu,Y.X.Yang,Z.M.Zhai,C.B.Yu,H.P.Tian,G.Z.Guo&Z.Y.Shao Mechanicaleffectsofweakstructuralplanesinrockmass 219 L.Q.Yang,S.R.Zhang&J.Q.Wu Numericalsimulationofthemorphologyandthegeometriccharacteristic ofrockjointsbyusingGIS 225 X.Yang,P.Zhang&N.Li Hydraulicfracturingphenomenaincohesivesoil 229 D.J.Yuan,Q.F.Huang&A.Koizumi Mechanicalbehaviourofbiaxiallyloadedcoalminesandstone 233 X.Y.Yun,X.L.Yang&H.S.Mitri Researchonmechanicalcharacteristicsofdamageinsurroundingrockmasswithhighgeo-stress 239 J.X.Zhang,H.D.Jiang,X.H.Ren,J.Q.Shu&H.Y.Ren Surfaceroughnessanalysisofrockjointsbasedona3Dsurfacemodel 243 P.Zhang,N.Li&X.Yang Studyonmechanicalpropertiesofrockdiscontinuityduringunloading 249 Q.Z.Zhang,M.R.Shen&L.B.Zhang Studyonphysicalandmechanicalpropertiesofthecoalgangueforfilling 255 X.G.Zhang,H.L.Wang&Z.P.Liu Numericalsimulationofcrackpropagationinthree-pointbendingbeams 259 X.L.Zhang&Y.Y.Jiao Mechanismanalysisonrheologicalinstabilityofrocksample 263 Z.G.Zhao,Y.L.Tan&Q.T.Hu Processingandexperimentaltechnologyof3-Dcracksinbrittlematerials 267 X.Zhu,M.L.Huang&Y.Huang Numericalsimulationofcrackpropagationinarockmassunderseepage-stresscouplingconditions 273 N.Zhuang,K.Z.Zhu&J.W.Li Undergroundminingandexcavationengineering Roadwaystabilityanalysisinadeepcoalmine 281 W.X.Chen,X.Q.He,H.S.Mitri&B.S.Nie Destressingdesignandpracticeofasoftrockroadwayunderhighgroundpressure 287 F.L.He,B.Du,S.B.Zhang&S.R.Xie GroutingexperimentonformingartificialPillarforPillarstoping 291 K.P.Hou,M.Xie&K.G.Li VII Asymmetricalbolt-meshsupporttechniqueofdeepsoft-rockroadwayundercomplexconditions 295 M.L.Huang,W.Lu,F.Wang&T.Xu Designcomputationinshaftlininginthickoverlaysoilstrata 301 B.S.Jiang&J.G.Wang PredictiveanalysisofdynamicinstabilityforLarge-Scale-Mined-out-Area(LSMA) basedonfieldhybridmonitoringinwesternstrongseismicregion 307 X.P.Lai,M.F.Cai,F.H.Ren&S.J.Miao Researchonthevariationruleofworkingfacesupportpressurebeneathigneousstrata 313 W.Li,H.G.Ji,J.A.Wang&S.J.Cai Predictiononsubsidenceareadevelopingsituationofsteepinclinedcoalseem 317 W.Li,J.A.Wang&T.J.Xu ResearchonminingsubsidencepredictionbasedonGIS 321 X.L.Li&C.L.Li Infiltrationmechanismofminewaterfromabandonedminesthroughcoalrockmass 325 X.L.Li,L.Liu,L.G.Wang&T.G.Deng NumericalsimulationofsplittingfailureofPubugouhydropowerstationbasedonenergymethod 329 N.Liu,W.S.Zhu,X.J.Li&X.L.Xin Stabilityofcoalmineroadwayintersectioningreatdepthofcover 333 T.K.Lu&X.Chen Rapidexcavationbyblastingtechniqueforhardrockroadwaysinhighgascoalmine 339 Q.Y.Ma&S.J.Miao ConstructionofChongwenmenstationpassingunderexistingsubwaywithunderground excavationmethod 343 S.Z.Ma&C.S.Qiao Effectsofgeometricalcharacteristiconcavernintegrityfortheundergroundgasstorage 349 J.Mo,W.G.Liang&Y.S.Zhao Numericalanalysisofthecapabilityofwater-resistingkeystratatopreventwaterseepage inminedrockmass 353 H.Pu&X.X.Miao ModelingstudyofroadwaystabilityinXishimenironminebasedonyieldingapproachindex 359 L.Qiao,S.Y.Li,W.Gao&L.Y.Zhu Timeseriesanalysisofgroundsurfacedisplacementinducedbytunnelexcavation 363 S.W.Qin,J.P.Chen,Y.H.Xiao&J.S.Que Discreteelementmodelingofcoalminewaste 367 P.Sheng,G.Y.Yu&Y.Y.Duan Analysisandevaluationaspectsonstabilityofwater-sealedundergroundpetroleum storagecavernsinrock 371 H.B.Shi&B.G.Liu Studyontheapplicationofdiscretewaveletontheriskdiagnoseofsurroundingrock stabilityofgoldMine 377 B.Song,J.S.Pan&P.F.Wang Visco-elasto-plasticsimulationsforcoalpillarstabilityaffectedbymining 383 Y.L.Tan,C.J.Sun,Z.K.Wu&Y.J.Chen OptimizationofgasdrainageparametersbyLBM 389 G.R.Teng,Y.L.Tan&M.Gao VIII Mechanicalandexperimentalstudyonthefailurelawofmassiveigneousrockinthe upperofthestope 395 X.W.Wei,H.G.Ji,J.A.Wang,L.Qiao&X.W.Wei Theunloadingmodeloftherockmassesanditsapplicationonnumericalanalysisof undergroundpowerplant 399 X.L.Wen&X.M.Guo Stabilityanalysisonpillarsnearbackfilledgoafs 405 H.W.Wu,S.J.Miao&H.T.Ma ExcavationofNo.2ventilationshaftofQinlinghighwaytunnel 411 S.L.Xu,H.H.Zhu,Z.G.Yan&W.Q.Ding Three-dimensionalstrainsofteningmodelingofsublevelopenstopemethodlayouts 415 G.T.Yang,X.B.Li,Q.S.Wang,X.L.Liu&H.J.Chen Mechanismofmining-inducedhorizontalfracturesinoverburdenstrata 419 G.M.Yu,C.F.Yuan,X.G.Zang,S.B.Lu,G.Y.Wang,Z.J.Su&X.L.Fan Rockheat-transfermodelofhigh-temperaturestopesanditssolvingprocess 425 F.L.Zhan&M.F.Cai Gridcomputingforlarge-scaleundergroundcaverngroupbasedonKrylovsubspacemethods 429 L.Zhang&H.D.Jiang Studyonthesiltingmechanismofreinforcingextraordinarycrackedcoalbodyusingpolyurethane 435 S.T.Zhang,R.J.Si,Y.H.Zou&Z.H.Yang Influenceofcavernspaceonstabilityoflargecaverngroupsunderearthquakes 439 B.Y.Zhao,Z.Y.Ma,W.Xu,C.Y.Jin&Z.G.Yang Studyontheevolutionofstressinshaft-liningduringstratum-grouting 447 G.S.Zhao,G.Q.Zhou,X.Y.Shang,F.P.Zhu,B.B.Xu,X.J.Li,Z.L.Yin&G.Q.Dong Rockslopesandlandsides Casestudyofslopestabilizationusingcompressionanchorandreinforcedconcretebeam 455 G.Z.Chen&J.Q.Jia Reliabilityassessmentofanopen-pitslopeusingfiniteelementstrengthreductionmethodand responsesurfacemethod 459 J.Deng,Z.Peng&D.S.Gu Designing,constructingandmonitoringofslopesinrockmassinCroatia 463 M.Grošic´,S.Dugonjic´&D.Udovicˇ Analysisofrockslopestabilitybyusingthestrengthreductionmethod 471 M.He,N.Li,Q.Liu&J.G.Hao Applicationofacceleratinggeneticalgorithmcombinedwithgoldensectioninslopestabilityanalysis 477 H.Hu,L.Yao&M.Dong ThereliabilityanalysisofNantongcoalgangueslopebasedonthemodified‘JC’method 483 D.S.Li&D.Y.Liu Stabilityanalysisofcuttingslopebyusing3Ddynamicnumericalsimulation 487 K.G.Li,K.P.Hou&Y.Cheng Differentfailuremodeofgravelandsoftclayslopes 491 S.Li,S.Q.Wang&S.L.Liu Stabilityofslopeandstopeoftransitionfromopencastminingtoundergroundmining 497 Z.J.Li,G.G.Qiao,Z.J.Li,Y.B.Zhang,G.Q.Gan,X.Y.Mi&G.Chen IX