CGRG Bibliography of Canadian Geomorphology
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Author : Crawford, C.B.; McCammon, N.R.; and Butler, R.C.
Date : 1991
Title : Deep-seated consolidation settlements in the Fraser River Delta
Publication : Canadian Geotechnical Journal
Issue : 28(2):
Page(s) : 298-303
Abstract
During the past 35 years, two cement plants have been built along the south channel of the Fraser River delta near Vancouver, British Columbia, Canada, in an area where a compressible layer of marine sediments occurs to a considerable depth below a thick layer of alluvial sand. Three heavy silo structures at the two plants have experienced settlement since the plants' construction in 1956. In this area, it has not been possible to obtain sufficiently undisturbed samples for reliable consolidation tests, and it has been necessary therefore to employ in situ tests and site improvement techniques such as preloading and vibrocompaction for the design of subsequent foundations in the same region. In some cases, piles were used to redistribute heavy loads. Observations during the past 35 years have shown that most of the consolidation settlement has occurred in a deep layer of marine sediments and that it was largely completed within 10 years of the loading.
Bibliography of Canadian Geomorphology