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Collapse of residual archaen granitic soils in South Africa

The collapse of residual Archaen granitic soils in South Africa is a geotechnical hazard that was
identified in the 1950’s. Collapse has led to hazardous building conditions in the rapidly
expanding northern parts of Johannesburg, and in areas stretching across the eastern parts of
South Africa, encompassing KwaZulu Natal, Mpumalanga and Limpopo Provinces. Since the
development of the oedometer test in the 1960’s and the research of Jennings and Knight in the
1970’s very little further research has been done on the topic of collapse, despite the
development of a number of new testing procedures that can give insight into the properties of
these soils. Due to the large surface area of South Africa prone to collapse, and the lack of
knowledge and testing methods to identify and quantify this hazard the author felt, that further
insight into the collapse of residual Archaen granitic soils was required.
This research serves to evaluate the properties of Archaen residual granitic soils that may be
indicative of collapsible soils. The research also compares various test methods and apparatus
used to identify and quantify collapse potential, namely the oedometer collapse potential test
and the triaxial collapse potential test, and evaluates the effect of soil properties on these
methods. / Dissertation (MSc)--University of Pretoria, 2013. / gm2014 / Geology / unrestricted

Identiferoai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:up/oai:repository.up.ac.za:2263/33181
Date January 2013
CreatorsFreese, Ryan Lloyd
ContributorsVan Rooy, L, freeser@jgi.co.za, Heymann, Gerhard
Source SetsSouth African National ETD Portal
LanguageEnglish
Detected LanguageEnglish
TypeDissertation
Rights© 2013 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria.

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