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dc.contributor.author Blatz, JA
dc.contributor.author Ferreira, NJ
dc.contributor.author Graham, J
dc.date.accessioned 2007-09-10T11:47:27Z
dc.date.available 2007-09-10T11:47:27Z
dc.date.issued 2004-12-03T11:47:27Z
dc.identifier.citation 0008-3674; CAN GEOTECH J, DEC 2004, vol. 41, no. 6, p.1111 to 1126. en
dc.identifier.uri http://hdl.handle.net/1993/2801
dc.description.abstract In 1999, after a period of extensive rainfall, two shallow slope failures developed in the right-of-way of Provincial Road 259 near Virden, Manitoba. The rainfall caused dissipation of soil suction in the near-surface soil, thereby reducing shear resistance and triggering failure. A research project was initiated between the Geotechnical Group at the University of Manitoba and the Manitoba Department of Highways and Transportation to assess the mechanism of failure. The project included a field investigation program, laboratory testing program, and advanced numerical modeling to identify the cause of failure. The results demonstrate that the rainfall resulted in dissipation of the suction in the soil slope, resulting in a reduction in the soil shear strength that triggered shallow failures. The dissipation of the soil suction has been modeled using a time-dependent seepage model that accounts for the flux boundary condition that existed at the ground surface. en
dc.format.extent 1671029 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.rights No part of the NRC Research Press electronic journals may be reproduced, stored, or transmitted in any form or by any means, without the written permission of the publisher, except as stated below. Under the Canadian Copyright Act, individuals may download or print single copies of articles for personal research or study. Any person may reproduce short excerpts from articles in the journals for any purpose that respects the moral rights of authors, provided that the source is fully acknowledged. As a courtesy, the consent of authors of such material should be obtained directly from the author. Authorization to reproduce items for other than personal research or study, as stated above, may be obtained via Access © upon payment of the copyright fee of $10.00 per copy. NRC Research Press also extends certain additional rights to authors. The above rights do not extend to copying or reproduction for general distribution, for advertising or promotional purposes, for creating new collective works, or for resale. For such copying or reproduction, arrangements must be made with NRC Research Press. en
dc.rights info:eu-repo/semantics/restrictedAccess
dc.subject slope stability en
dc.subject unsaturated soils en
dc.subject laboratory tests en
dc.subject soil suction en
dc.subject seepage modeling en
dc.subject flux boundary en
dc.subject SHEAR-STRENGTH en
dc.subject SUCTION en
dc.subject STABILITY en
dc.subject LANDSLIDE en
dc.subject MODEL en
dc.subject TILL en
dc.title Effects of near-surface environmental conditions on instability of an unsaturated soil slope en
dc.status Peer reviewed en
dc.identifier.doi http://dx.doi.org/10.1139/t04-058


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