摘要
采用现场围岩温度实测与计算机有限元分析相结合的方法确定了高寒地区隧道温度场计算时围岩导热系数值,该方法简便、计算参数少、适应性强、而且经济高效,避免了实验室内导热系数测定与岩土或土体实际导热系数间的巨大差异,是确定岩石、土体等导热系数的一种新方法,可应用到各类工程地质条件下。
This paper determines the rock＇s heat conductivity coefficient by the method of combining the temperature test values and the FEM values. This method is simple and economical, has fewer parameters, can suit to all kinds of engineering geology. This method evades the big differences between the value of conductivity coefficient tested in the laboratory and its real value. Therefore, this paper dose not only give us a new way to certain the real conductivity coefficient of rock, but it can also be applied in soil, gravel and other kinds of geological conditions.
出处
《低温建筑技术》
2009年第9期11-12,共2页
Low Temperature Architecture Technology
关键词
隧道围岩
导热系数
数值计算
tunnel sttrroundings
conductivity coefficient
value simulation
