一次扣拱暗挖逆作法修建地铁车站新技术

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(100037),,,,,CRDPBA,CRDPBA,,11.1,,,,,CAD,PBA(1)1.2CRDCRD:2009209201:2009209214:,,,,,,,[e-mail]1PBA,,,5,2CRD2CRDCRD:,,;,;,,;;,,;1.3PBAPBA,CRD,3PBAPBA(4):66©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1)PBA1(),,PBA3m4m,2/3;,(2)PBA2,,,,(3)4,,468,,,,(3)(4)PBAPBA,4;,46486,,,,22.1,:,;;,;,11()1,2,3,,,,CRD3,,,,4,,,PBA5,,,,,76©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,;;;,,2.2.1,,,,,,,,,,4m;,,;,,414m107.5m,(5)2.2.2CDCRD;,,(1)64,65%,,4;17%,;7%,,;2%,,,50%,,6(2),CDCRD3,,CD+CDCD+86©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(8m),CD,(3),,,,(5%);,,(4)4,,,,11.5,11.5,,(5),,50%2.2.3,,,57m,,,,,;,,,,400mm,,,,,2.2.4(7),,;,,,,,,72.2.5,,,:(1),,,(2),,,,,,(3),33.1,410,7.0m,25122m2,8,,,96©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(4)2,4,3.2,(1)486.3mm1049.4mm,,,CRD50%65%,PBA,4PBA,,4,2.0m,,340m2,,,(2)CRD16,PBA,,,(3),,10,2,4PBA,CRD40%,6PBA50%,8PBA90%,,(4),,,,,CRD50%,CRD;PBA68,CRD15%18%,PBA10%(5)410,CRD,,,10+4,,4,,,07©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.100037;2.200080),,,,,,,,1,:2009204208:2009206214:,,,,[e-mail]1.1,,84,:,,;,,,,,,,,,2m;,,,,,,,,3,:,[1].[G],20032005.[2].2[M].:,2003.[3]..[M].:,2004.(:)TechnologyofTop2downBoredExcavationwithCast2in2situArchforMetroStationConstructionHuangMeiqun(BeijingUrbanEngineeringDesign&ResearchInstituteCo.,Ltd.,Beijing100037)Abstract:Onthebasisofanalysingtraditionaltunnelingmethodsandengineeringpractice,anewtechnologyoftop2downboredexcavationwithcast2in2situarchforlarge2scaleundergroundprojectsisputforward.KeytechniquesofthenewmethodanditsapplicationinHuangzhuangStationofBeijingmetroaredescribed.Applicationprospectofthemethodishighlighted.Keywords:top2downboredexcavationwithcast2in2situarch;CRDmethod;PBAmethod;metrostation17