中外公路2026，Vol.46Issue(2)：201-211,11.DOI:10.14048/j.issn.1671-2579.2026.02.022
基于材料热参数试验的负温隧道温度场分析
Analysis of Temperature Field in Negative Temperature Tunnel Based on Material Thermal Parameter Tests
摘要
Abstract
In view of the temperature field problem of Asia's first four-season cross-country skiing tunnel reconstructed from an existing tunnel,based on the study of the thermal conductivity of tunnel materials by the HOTDISK method,steady-state heat transfer models under different protection conditions were established by using the finite element method and the multi-layer cylinder heat transfer theory,respectively.The temperature field distribution characteristics of the negative temperature tunnel were analyzed,and the influence laws and sensitivities of various factors were investigated.The results show that the freezing of the tunnel affects the material properties of the tunnel structure;the thermal conductivities of the saturated rock sample and concrete in the frozen state are 8%‒20%higher than those in the thawed state;the thermal resistance under the protected condition increases by nearly 9 times compared with that under the unprotected condition,and the heat flow decreases to 1/10;the thermal resistance component of each material layer is inversely proportional to its thermal conductivity and increases approximately logarithmically with the thickness of the insulation layer;the tunnel temperature field has an approximate logarithmic relationship with the thermal conductivity of the surrounding rock and the thickness of the air layer and has a low correlation with the thermal conductivity of the lining;as the thermal conductivity of the insulation material increases,the insulation effect decreases rapidly.The main factors affecting the distribution of the tunnel temperature field are the thickness of the insulation layer,the thermal conductivity of the insulation layer,and the thermal conductivity of the surrounding rock.Intervals can be set in the air layer to reduce the impact of convective heat transfer,and active heating technology can be applied in the lining to prevent the freezing of the tunnel structure.关键词
滑雪隧道/负温度场/多层圆筒传热模型/HOTDISK法/保温措施Key words
skiing tunnel/negative temperature field/multi-layer cylinder heat transfer model/HOTDISK method/thermal insulation measure分类
交通工程引用本文复制引用
辛全明,张锋,赵忠亮,孙振华..基于材料热参数试验的负温隧道温度场分析[J].中外公路,2026,46(2):201-211,11.基金项目
国家自然科学基金资助项目(编号:42171128) （编号:42171128）
中建股份科技研发项目(编号:CSCEC-2024-Z-47,CSCEC-2018-Z-23) （编号:CSCEC-2024-Z-47,CSCEC-2018-Z-23）
