Non-linear finite strain consolidation of tailings and waste.
Date
1997
Authors
Gassner, Fred Werner
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The research report summarises the theory of consolidation, for both linear
infinitesimal strain, and for non-linear finite strain. The non-linear finite strain theory
isadopted in a computer program to model the building of a tailings dam by thin
layers. This program provides the pore water pressure profile over the depth of the
deposit, as well as the settlement of the deposit.
Making use of the program and the consolidation properties of five mining residues
and two industrial residues, the build up of excess pore water pressures is modelled
for different rates of deposition of the waste products. These results are used in
determining how the rate of deposition affects the stability of the outer slope of a
tailings dam. Also, the difference in the stored volume in a dam is investigated, based
on different drainage condltions and rates of deposition.
Description
A project report submitted to the Faculty of Engineering, University of the
Witwatersrand, Johannesburg, in partial fulfillment of the requirements for the
degree of Master of Science in Engineering.
Keywords
Tailings dams -- South Africa -- Research., Slimes (Mining), Tailings dams -- Safety measures., Tailings dams -- South Africa -- Data processing.