Shear wave velocity of gold tailings
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Date
Authors
Chang, H.P.N.
Heymann, Gerhard
Journal Title
Journal ISSN
Volume Title
Publisher
South African Institution of Civil Engineering
Abstract
To evaluate the liquefaction potential of tailings impoundments, the in situ void ratio and the effective stresses are required. While stresses can be estimated with relative accuracy,the void ratio of tailings has proved difficult to obtain, especially below the water table. The development of in situ seismic techniques has presented new opportunities to determine the in situ void ratio of geomaterials. In addition, these seismic methods can be used to evaluate the liquefaction potential of gold tailings. However, the method currently relies on the shear wave velocity-void ratio relationships developed for sands, while gold tailings is essentially a silty material. This raises the question of the validity of such relationships for tailings material.
Description
Keywords
Gold tailings, Seismic methods, Static liquefaction, Shear wave velocity, Void ratio, Bender elements
Sustainable Development Goals
Citation
Chang, HPN & Heymann, G 2005, 'Shear wave velocity of gold tailings', Journal of the South African Institution of Civil Engineering, vol. 47, no. 2, pp. 15-20 [http://www.journals.co.za/ej/ejour_civileng.html]