成都地铁1号线工程建设面临的地质问题及对策

JOurnalofEineeri01010049665/2006/14(Suppl.)2541(610031)1,,THEGEOLOGYPROBLEMANDCOUNTERPLANSTHATTHENO.1LINEOFCHENGDUMETROENGINEEFJNGCONSTRUCTIONYlYo,1inJIANGLianen(SeeondSuandDsignInstizuteofChinaRailwars,Chengdu610031)AbstraetThestationandzonetunnel5eousstrueturesofNo.1lineofChengdumetroallloeateinthesandandpebble5011.Willmeetmanyeonstruetiongeologiesandtheenvironmentgeoloproblemintheeonstruetion,forexample,bigdiameter,highstrengthvelandtheanastigmatiebodysandwillprodueethebiggerinnueneetoehoosethetypeofshieldmaehine,eonstruetionofshieldandtheundwaterdeeline.Atthesametime,themetroengineeringeonstruetionmprodueetheinflueneetotheperipheralbuildingandthegroundwaterpath.Butatfullsummatheteehniqueandtheexperieneeofsimilarengineeringinthefoundations,fromehoosethereasonableeonstruetionmethod,eonstruetionequipments,eonstruetioneraft,eonstruetionoanizationandengineeringmeas-ure,eanbesolveoreontrolabovementionedgeoloproblems.KeywordsMetro,Geoloproblem,Gravel,Anastigmatiebodysand,Shieldmaehine11,,,,,,,1,,,,,,,,,,18.sl7km,,16,,:(1975),,,,Email:[e-mail]2006,,,,;(),(),()22.1,:,,,,,41In,,,490-520m,17m2.2,,,3,(Q;)(Q3)(QZ),,,,,30smK-25md,,2.4.2,,,NW1,,,,,32.3(Q),(Q),(Q);(Q)(Q);(KZg)2.42.4.1,,,3.13.1.1,Q:Q;20cm,Q3,ro%15%,,20%30%,,,610m14m2040cm,67cm,55cm,53cm(1)3.1.2,Q3Q;,;Q:,,,14(SuPPI.):153.6107MPa(23)1()Table1Statistiestablethatthegravelgradation/100/80l(X)408020~4010~20/2~10mmmnnnmmmml1111nUllmm/111I3754624263.1.31,,,,,,,4,,,,,n0,j”81100992075,1Ž,nnn:,50kg2%)Talle2StatistiestablethattheveleomPosition/O,1034.29.08.01.80.628.510.01.8065.5Q3443.24.53.00.41.035.78.82.10.30.1QZ440.25.412.27.11.019.96.96.30.40.6:,50kg,,3Talle3Theintloadteststatistiestableofvel(50)/MPa(5O)/MPaR/MPa43.144.9356.378.422.937.5753.6107:1,,,,,,,,3.23.2.1,13m,,,,3.2.21,,,,,,,,,,,,,3.2.3,,,,,,JournalofEngineering20(,,5,1,,,,,4,,,(4)4lTable4TherelationthatthetunnelalimentandundwatersflowthattheNo.1lineofChengdumetro75032090080900380,EESl5(S28SscES384.11;;,,,,,,,,,,,,,,4.2,,,,,,,,,1EW2W3s30ow4NS5NS6NS,,,,,,5,,,,5,,1,,,.,R],2).,.1[RI..5[J.,2X)4,17(5):3337.,.J.,2002,12(2):4549....J,..JlesJ,”4l.L..Lr.L