Deformation Characteristics of Ventiduct Embankment on Qinghai-Tibet Railway
Publication: Journal of Cold Regions Engineering
Volume 22, Issue 4
Abstract
The Qinghai-Tibet railway, the highest railway in terms of elevation, was built under the harshest of weather conditions in the world. A new technique, called the ventiduct embankment, was used for the first time in railway construction in the Qinghai-Tibet permafrost region of China to overcome the specific difficulties of the permafrost plateau. To evaluate its effectiveness, several full-scale test embankments were constructed at a representative field site, the Qingshuihe experimental section. The effectiveness of the ventiduct embankment structure has been verified by comparing it with the performance of the nearby control embankment in terms of permafrost table, settlement, and thaw depth. These observations are presented in this paper. The ventiduct embankment structure based on this study has been adopted in Qinghai-Tibet permafrost railway construction.
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Acknowledgments
The writers would like to express their gratitude to Professor B. R. S. Murthy, India Institute of Science and Technology for his valuable help during the preparation of this paper. The research project is supported by the Doctor Research Fund (DHB0602) from the East China Institute of Technology.
References
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Information & Authors
Information
Published In
Journal of Cold Regions Engineering
Volume 22 • Issue 4 • December 2008
Pages: 124 - 133
Copyright
© 2008 ASCE.
History
Received: May 10, 2007
Accepted: Aug 5, 2008
Published online: Dec 1, 2008
Published in print: Dec 2008
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