Experimental Study on the Ventiduct Embankment in Permafrost Regions of the Qinghai-Tibet Railroad
Publication: Journal of Cold Regions Engineering
Volume 19, Issue 2
Abstract
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.
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Acknowledgments
This study was supported by the National Science Fund for Distinguished Young Scholars of China (Grant No. UNSPECIFIED40225001) and the National Natural Science Fund (Grant No. UNSPECIFIED40401010) and the Foundation of “Hundred People Plan” of CAS (to Y.M.L.) and the CAS Special Funding for the National Excellent PhD dissertation author (Y.M.L.) and the Start Fund of Chongqing Jiaotong University. The writers would like to thank the editors and the anonymous reviewers.
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Information & Authors
Information
Published In
Journal of Cold Regions Engineering
Volume 19 • Issue 2 • June 2005
Pages: 52 - 60
Copyright
© 2005 ASCE.
History
Received: Sep 20, 2002
Accepted: Sep 20, 2004
Published online: Jun 1, 2005
Published in print: Jun 2005
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