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北极多年冻土区埋地输气管道周边温度场数值分析
李欣泽1,2,3(), 金会军4(), 吴青柏1, 魏彦京5, 温智1
Numerical Analysis of Temperature Field Around Buried Gas Pipeline in Arctic Permafrost Regions
Xinze LI1,2,3(), Huijun JIN4(), Qingbai WU1, Yanjing WEI5, Zhi WEN1

图6. 连续多年冻土区不同管道输送温度下管道截面中心线地温场分布
PT表示管道输送温度,红线代表管顶和管底所在位置,中间灰色填充体代表管道截面,需要说明的是图中纵坐标采用负值表示的原因是方便表示埋地管道所处埋深

Fig.6. The ground temperature profiles in depths for center line of pipe section with different pipeline transporting temperatures
PT stands for pipeline transporting temperatures, red line stands for the upper and lower bounadries of the pipe and grey filler stands for pipe cross section. It is noted that the reason why the vertical coordinates are shown by negative values is that the pipeline buried depth is easy to understand in this way