Three-dimensional Numerical Computation for Temperature Field and Insulator of Cold Regions Tunnel

摘要：

　　With heat conduction differential equation of the transient temperature field,Galerkin method is adopted to deduce the three-dimensional finite element formula; based on the test result of temperature field,the actual temperature of the environment inside the tunnel shall be exerted on surface of the second lining concrete as load,thus establish the three dimensional computation model of the temperature field of tunnel in cold region.Next,on basis of the model,numerical analysis on cross section of burial depth and longitudinal direction of tunnel in cold region with and without thermal insulating layer,so as to provide theoretical basis for thickness and longitudinal length of thermal insulating layer laid in tunnel of cold region.

关键词： Cold Regions Tunnel Numerical Computation Temperature Field Insulator

作者: Jinxing LAI Chi LIU Guanglong ZHANG

作者单位: School of Highway,Changan University,Xian,710064,P.R.China

会议类型: 国际会议

会议名称: the 2012 2nd International Conference on Frontiers of Manufacturing Science and Measuring Technology (第二届制造科学与检测技术国际会议(ICFMM 2012))

会议地点: 西安

会议语种:英文

页码: 132-135

在线出版日期: 2012-06-12（万方平台首次上网日期，不代表论文的发表时间）