软弱围岩地段双连拱隧道施工技术

:10045716(2003)069503:U45514:B(,471002):,,,:;;;,,,,,,,,,,,,1,()(),256m40,-2.8%,R=510m,,,24m,,22.1:(1)1;;:12345678,,,15m56510m,6730m,78510m2.2:(2)2;:12345678910,,,,25m,6715m;,810,,8930m2.3,,,8520036WEST-CHINAEXPLORATIONENGINEERINGseriesNo.85Jun.2003©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,,,,,,(),,340,,,,,,,,,,3431;2;3;4;541;2;3;4;5;6(34A),,(),,,,,,,(4),,,4,,,U4.1Á120,,Á108,,6m,,50cm,BW-250/50,,,(),,,4.2UU,,:(1)U,,,(2),,(3)U,U,4.3TK-961,,,35kg,12cm,,,5,,,:,,70%,,,,,,669Jun.2003No.6©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.EVA2m,(),,ZPR-210V,,,:7,,,,8,,,R=510m,,9m,2cm=R-R2-(L/2)21/2:;R;L,2cm,,1cm,9,,,,,,(94),,,,,TGRM,,,HZ25K,(,,)2.2.3,,,,,,,,,,2.2.4,,,,,3,,,,,,:(1);(2),,,;(3),:,[1]1[M]1:.19951AnalysisandTreatmenttoDisasterofLakingandLiningFailureinRailwayTunnelsinUseCAOYu,PENGYong,TENGWei2fu,WEIXiang2long,LIYi2jun(1.EngineeringFaculty,ChinaUniversityofGeosciences,WuhanHubei430074,China;2.DepartmentofGeotechnicalEngineering,TongjiUniversity,Shanghai210034,China)Abstract:Leakingdisasterandliningfailurearetwoofthemaindisastersinrailwaytunnelsinuse.Basedonmanyyearsofprojectexperiences,therea2sonsareanalyzedforthesetwodisastersandprofferedtreatmenttechnologyandnewmaterialusedsuccessfullyintheprocedurefortreatmentforthem.Keywords:tunnel;leaking;liningfailure;treatment;application7920036:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.