Page 195 - 《水资源与水工程学报》2022年第3期
P. 195

!33 " ! 3 #                       & ' ( ) & * + , -                               Vol.33No.3
               2022 $ 6 %               JournalofWaterResources&WaterEngineering                 Jun.,2022

            DOI:10.11705/j.issn.1672-643X.2022.03.25


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                 8IBJK:TV32 2   LMNOP:A    LQRK:1672643X(2022)03019111
                       Couplingmechanicalpropertiesandinteractionmechanism of

                       surroundingrock -supportingstructureofahydraulictunnel
                                        underthermal -mechanicalaction

                                                           2
                                               1
                                                                          1
                                  ZHANGYujie,LIXiaozhe,JIANGHaibo,SHIKebin             3
                  (1.CollegeofWaterandArchitecturalEngineering,ShiheziUniversity,Shihezi832000,China;2.KuitunCityService
                       StationforRuralDrinkingWaterSafetyProject ,Kuitun833200,China;3.CollegeofHydraulicandCivil
                                   Engineering ,XinjiangAgriculturalUniversity,Urumqi830052,China)
                 Abstract:Theinteractionbetweenthesurroundingrockandsupportingstructureisanimportantfactor
                 affectingthestabilityofhydraulictunnelstructureinhighaltitudecoldregions,itisofpracticalsignifi
                 cancetostudythetemporalandspatialevolutionoftheinteractionbetweensurroundingrockandsupport
                 ingstructureofhydraulictunnelsunderthermal-mechanicalactions.Basedonthefieldmonitoringdata
                 ofahydraulictunnelinacoldregionofXinjiang,thefiniteelementsimulationwasusedtocalculatethe
                 elastic-plasticsolutionoftheinteractionbetweenthesurroundingrockandtunnelliningunderthermal
                 effect,soastoanalyzethespatiotemporalvariationcharacteristicsoftemperaturefieldandstressfieldof
                 thetunnelcouplingstructureunderthermaleffect.Theresultsshowthatthelowtemperatureinthetunnel
                 hasagreatinfluenceonthetemperaturefieldandstressfieldofthecouplingstructure.Theimplementa
                 tionofinsulationmeasuresshouldbeconductedtoensurethatthetemperaturealongtheradialdirectionof
                 thestructure (within2.7m)isnotlessthan0℃ underextremeweatherconditions.Intheearlystage

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