The overconsolidated soils and soft rocks which form a large proportion of foundation materials in Western Canada typically have a substantial component of their total deformation of an immediate (time independent) nature. This makes them particularly suitable for application of pressuremeter testing when deformation characteristics are sought for settlement or heave analysis.The presented study is a continuation of work on pressuremeter testing carried out at the University of Alberta systematically since 1971 with a view to developing a pragmatic approach to a complex problem of foundation deformation analysis.Described in detail are pressuremeter testings on three sites in Western Canada where documented case histories of deformation behavior were available. The first case history analysed was a settlement of Mount Blackstrap near Saskatoon, Saskatchewan, which is a man-made ski hill founded on very deep till strata. The second case was the settlement of concrete silos in Calgary, Alberta, founded on a layer of dense, coarse gravel. The third study was concerned with an analysis of a load test on a bored pile embedded in Cretaceous bedrock at the Calgary Airport.At all three sites the pressuremeter derived moduli were used in back-analysis of foundation behavior and the results were compared with previously recorded field data. An agreement between the back-analysis and field data in some cases and discrepancies in others indicate the limitations of this approach to pressuremeter testing in these types of foundation materials. The results are discussed and conclusions are drawn on the basis of these as well as the previously studied case histories.
Geological and geochemical data from Mackenzie Corridor. Part VII: new geochemical, Rock-Eval 6, and field data from the Ramparts and Canol formations of northern Mackenzie Valley, Northwest Territories
