Analytical and experimental studies of the evolution of the excess pore water pressure during the deposition of a slurried material
Jian Zheng, Li Li
In the proceedings of: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNCSession: Mining Geotechnics and Hydrogeology I
ABSTRACT: The mining industry is accompanied by the generation of large volume of tailings, which are usually pumped to tailings pond, made of tailings dams. Tailings can also be used as backfill material to return and fill underground mine stopes. Similar practice in civil engineering is the disposal of dredged sludge excavated from river or sea beds in a containment structure. Among these practices, a common point is the disposal of a slurried material in a confining structure. To ensure the stability of this structure, it is important to have a good estimation of the pore water pressure (PWP) during the placement of the slurried material in the confining structure. Recently a truly analytical solution has been developed by the authors based on a model proposed by Gibson. However, the analytical solution has never been validated by experimental results. In this paper, the truly analytical solution is first recalled. A simple laboratory test instrumentation is presented. The measured pressures are compared with the analytical solution. The good agreement between the experimental and analytical results indicates that the analytical solution is validated even though it contains some simplifying assumptions.
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Zheng, Jian, Li, Li (2018) Analytical and experimental studies of the evolution of the excess pore water pressure during the deposition of a slurried material in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Zheng_GEO2018_381,
author = {{Zheng, Jian}, {Li, Li}}
title = {Analytical and experimental studies of the evolution of the excess pore water pressure during the deposition of a slurried material}
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Analytical and experimental studies of the evolution of the excess pore water pressure during the deposition of a slurried material}
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }