Experimental Study of the Earth Pressure Distribution on Cylindrical Shafts
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 137, Issue 11
Abstract
This paper describes the results from an experimental program that has been conducted to investigate the distribution of earth pressure on a cylindrical wall embedded in granular material and subjected to radial displacement. The model shaft has been designed and built using mechanically adjustable segments to control the magnitude and uniformity of the wall movement during the tests. A series of experiments have been performed, and the progressive changes in earth pressure along the shaft have been continuously measured for different wall displacements. Results indicated a rapid decrease in lateral earth pressure when a small wall movement was introduced. When the wall movement reached about 2.5% of the shaft radius, the earth pressure distribution along the shaft became uniform and independent of any additional wall displacement. The experimental results are also compared with some of the available theoretical solutions, and the applicability of these solutions is then examined.
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Acknowledgments
This research is supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) under Grant No. NSERC311971-06. The assistance of Mr. John Bartczak in building the shaft apparatus and conducting the experiments is greatly appreciated.
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 137 • Issue 11 • November 2011
Pages: 1121 - 1125
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Dec 5, 2008
Accepted: Mar 10, 2011
Published online: Mar 12, 2011
Published in print: Nov 1, 2011
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