高海拔、高寒区、冻土隧道施工洞内环境温度场数值模拟

Calculation Analysis on the Tunnel Construction Circumstances in Permafrost Regions at High Altitudes

青藏高原严寒的气候环境,施工中要求对隧道洞内环境气温进行控制以达到保护冻土、保证隧道施工正常作业和工程施工质量的目的。对施工环境温度场的理论模型建立和施工过程的数值模拟,为保护冻土及施工环境温度调节与控制奠定理论基础。

Because of the cold circumstances in Tsinghai-Tibet plateau, during the construction of tunnels in this area, the circumstance temperature inside the tunnel must be controlled in order to protect the frozen ground and assure smooth going-on and good quality of the construction. This paper establishes a theoretical model of the temperature field of the construction circumstances with a calculation analysis of the construction process, which may provide useful reference for protecting the frozen ground and for regulating and controlling the temperature in construction circumstances.