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- W2372226636 abstract "Based on the engineering of a tunnel in cold region,the convective heat transfer fluid-solid model of surrounding rock,lining and inside gas has been built by false coupling calculation of the Fluent and Ansys. The results show that: With the passage of time,the gas of inside cave and surrounding rock's temperature approched a stable value,the severe changed temperature of inside cave present to the scope of the import and export of 50 m. After 15days,the difference of gas temperature is 1. 4 ℃. In the most unfavorable temperatures,after 30 days,the depth of negative temperature affected surrounding rock is about 10 m. The freezing depth is about 5m,which the invert is affected by temperature most obviously,vault and haunch followed. In the surfacing of secondary lining 5 cm thick insulation layer is able to achieve the insulation effect of the tunnel. The conclusions provide some theoretical for insulation measures in the cold region tunnels." @default.
- W2372226636 created "2016-06-24" @default.
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- W2372226636 date "2014-01-01" @default.
- W2372226636 modified "2023-09-23" @default.
- W2372226636 title "Numerical Simulation of Temperature Field in Cold Region Operational Tunnel" @default.
- W2372226636 hasPublicationYear "2014" @default.
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