oa Civil Engineering = Siviele Ingenieurswese - Recent experiences with the consolidation test as a means of identifying conditions of heaving or collapse of foundations on partially saturated soils



During 1955 it became apparent that a new problem in foundation engineering faced civil engineers in South Africa. To the heaving conditions which are now fairly well recognised must be added a new condition associated with what is believed to be a collapse of certain sandy soils when under load and when inundated. The problem appears to be encountered mainly with sands resulting from the Kalahari era and with colluvial Bands and silts in the upper strata of typical South African soil profiles.1 The moisture content of the subsoil at time of construction is also a very important factor.


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