mechanical behavior of segment rebar shield tunnel in construction stage盾构隧道施工阶段管片钢筋受力行为.pdf

888Chenetal./JZhejiangUnivSciA20089(7):888-899

JournalofZhejiangUniversitySCIENCEA

ISSN1009-3095(Print);ISSN1862-1775(Online)

;

E-mail:jzus@zju.edu.cn

Mechanicalbehaviorofsegmentrebarofshieldtunnel

*

inconstructionstage

Jun-shengCHEN†,Hai-hongMO

(DepartmentofCivilEngineering,SouthUniversityofTechnology,Guangzhou510640,)

(StateKeyLaboratoryofSubtropicalBuildingScience,SouthUniversityofTechnology,Guangzhou510640,)

†E-mail:jschen@scut.edu.cn

ReceivedOct.9,2007;revisionacceptedMar.27,2008

:Inthispaper,a3Dfiniteelement(FE)programADINAwasappliedtoanalyzingatunnelwith9segmentrings.The

loadsactingonthesesegmentringsincludedthesqueezingactionoftailbrushofshieldmachineunderattitudedeflection,the

jackingforces,thegroutingpressureandthesoilpressure.Theanalysesfocusedontherebarstressintwostatuse