Cyclic Filtration Apparatus for Testing Subballast under Rail Track
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 133, Issue 3
Abstract
An apparatus capable of testing subballast-subgrade filtration behavior under cyclic loading is presented. The apparatus can be used to accurately monitor the pressure fluctuations, permeability of the filtration system, and turbidity variations of the effluent with time. The test results show that the frequency of cyclic loading has an influence on the filtration behavior of subballast material used in railway tracks. Further, the effect of cyclic load on the design and selection of subballast materials over a wet subgrade must be considered to avoid filter malfunctioning.
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Acknowledgments
The writers acknowledge the financial support provided by the Faculty of Engineering to establish this testing facility. Thanks are due to Roy Goswell and Mike Leach, for their help in fabricating and commissioning the cyclic filtration apparatus.
References
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 133 • Issue 3 • March 2007
Pages: 338 - 341
Copyright
© 2007 ASCE.
History
Received: Mar 28, 2006
Accepted: Aug 30, 2006
Published online: Mar 1, 2007
Published in print: Mar 2007
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