Experimental study on the ventiduct embankment in permafrost regions of the Qinghai-Tibet railroad

被引：17
|
作者：
Yu, WB [1 ]
Lai, YM
Zhang, XF
Niu, FJ
机构：
[1] CAS, CAREERI, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China
[2] Chongqing Jiaotong Univ, Dept Civil Engn, Chongqing 400074, Peoples R China
来源：
JOURNAL OF COLD REGIONS ENGINEERING | 2005年 / 19卷 / 02期
关键词：
D O I：
10.1061/(ASCE)0887-381X(2005)19:2(52)
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This technical note presents an experimental study on the ventiduct embankment in permafrost regions of the Qinghai-Tibet Railroad. Two experiments were conducted in a test box and they were designed with similarity theory. Some preliminary results are given to describe the temperature regime properties of the embankment, and the temperature differences between the ventiduct embankment and the normal embankment are compared. Results showed that the ventiduct embankment has a good cooling effect; it has a faster cooling rate than the normal embankment; the range of influence of a single duct can reach one duct diameter; the temperature distribution of the ventiduct embankment is asymmetric along the wind direction.
引用
收藏
页码：52 / 60
页数：9
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