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:1672643X(2022)03019111
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,soastoanalyzethespatiotemporalvariationcharacteristicsoftemperaturefieldandstressfieldof
thetunnelcouplingstructureunderthermaleffect.Theresultsshowthatthelowtemperatureinthetunnel
hasagreatinfluenceonthetemperaturefieldandstressfieldofthecouplingstructure.Theimplementa
tionofinsulationmeasuresshouldbeconductedtoensurethatthetemperaturealongtheradialdirectionof
thestructure (within2.7m)isnotlessthan0℃ underextremeweatherconditions.Intheearlystage
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