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- W164608561 abstract "An analysis of the Beaver Creek retrogressive landslidesouth of Saskatoon, Saskatchewan was undertaken. Supplementedby data from previous studies of the landslide, information from theinstallation of four inclinometers and three piezometers was sufficientto describe the field behaviour of the retrogressive landslide andto determine an appropriate procedure for analysis. Additional informationwas provided by laboratory measurements such as directshear testing of field samples. The Morgenstern-Price method wasused for the stability analyses.Slope indicator measurements made over a three yearperiod starting in August, 1977 clearly indicate the presence ofseparate blocks within the landslide with the rate of movement increasingfrom the scarp to the toe. Total movement at the toe isestimated at 175 mm, while movement at the scarp has been 65 mm. Therates of movement vary throughout the year with increases and decreasesin the movement rate corresponding to increases and decreasesin the piezometric level as measured by piezometers in the landslidesite as well as those indicated by an observation well near the site.A common failure plane is located well below the riverelevation at the contact between the stratified lacustrine depositsand the underlying tills. The landslide continues to retrogress, asis indicated by the formation of a new block at the scarp. Thisretrogression appears to be in response to erosion at the toe of the landslide.Stability analyses have shown that for the Beaver Creeklandslide, the blocks within the sliding mass can be considered as asingular unit for purposes of computing the factor of safety. However,a series of blocks starting from the toe can also be analyzed in a conventionalmanner. The shear strength mobilized by the Beaver Creeklandslide is approximately 7.0 degrees, plus or minus 1.0 degree, whichagrees favourably with the 6.6 to 10.6 degree range of residual shearstrength measured in the laboratory.Note:Page 163 appears in the document twice, but page 164 is not included. The second page 163 should be labelled page 164." @default.
- W164608561 created "2016-06-24" @default.
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- W164608561 date "1981-05-01" @default.
- W164608561 modified "2023-09-28" @default.
- W164608561 title "The Beaver Creek retrogressive landslide: a reevaluation" @default.
- W164608561 hasPublicationYear "1981" @default.
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