摘要
本文根据一寒区强风化花岗岩隧道实测围岩温度 ,采用一维热传导模型、古典显式差分格式和最小二乘法 ,对该隧道围岩导温系数进行了反分析。用解析方法和数值计算法分析了影响隧道围岩冻深的主要因素 ,所得结论有一定的工程实用价值。
Based on the temperature measured from the surrounding weathered granite of tunnel in cold region, the thermal conductivity of the rock is analyzed by means of the one-dimensional thermal conducting model, the classic difference scheme and the least square method. The influences of the main factors on the frost depth of the enclosure rocks are analyzed by the analytic and numerical methods. Finally, some referable conclusions are obtained from engineering practice.
出处
《地下空间》
CSCD
2002年第4期343-346,共4页
Underground Space
关键词
寒区
隧道
围岩
导温系数
防水层
冻深
cold region
surrounding rock
thermal conductivity
damp-proof course
frost depth
