摘要
路基内部水分场和温度场的变化是影响季节冰冻路基稳定性的关键因素,基于季冻区冻土路基温度场控制方程,建立了季节冰冻路基模型,计算分析了路侧积水对路中、路肩温度场的影响。研究表明:路侧积水对路基内部温度场的改变有显著影响,路侧有积水的路基温度场的0℃范围比无积水的路基温度场的范围大,而且0℃等值线的深度呈现向下向路基内部扩散的趋势。
Moisture field and temperature field in the subgrade changing is a key factor in the impact of frozen subgrade＇s seasonal stability,establish temperature field control equation and seasonal frozen roadbed model based on seasonally frozen permafrost subgrade,calculate and analyses how does roadside wateraffect temperature field on the path and shoulder. Studies have shown that roadside water has a significant effect on the roadbedinside temperature field＇s changing,the range of 0 ℃ roadbed temperature field under roadside water is wider than no waterand the 0℃ contours downward trend by presenting the depth of internal diffusion to the roadbed.
出处
《北方交通》
2015年第8期43-46,共4页
Northern Communications
基金
陕西省交通运输厅交通科技项目(14-32R)
关键词
路侧积水
冻土地区
路基温度场
数值模拟
Roadside water
Permafrost region
Embankment temperature field
Numerical simulation
