Impact of surcharge loading on VSD performance in dewatering oil sands tailings
Julian Gan, Moir D Haug, Mohammad Al-Mamun
In the proceedings of: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNCSession: Mining Geotechnics and Hydrogeology I
ABSTRACT: A two and a half year-long laboratory test column study was conducted to evaluate the impact of surcharge loading on increasing the effectiveness of vertical strip drains (VSD’s) in dewatering mature fine tailings (MFT). A 1.5 m long VSD was installed up the center of a 4 m high, 0.52 m diameter test column. The test column was instrumented with pressure transducers and manometers to measure fluid pressures adjacent the VSD and at the edge of the test column. The test column was loaded utilizing a pressurized water cap. A pressure of 40 kPa was applied to the surface of the MFT for approximately 330 days. This pressure was then increased to 60 kPa for the duration of the 1178 day long test. The results of this test program found that the elevated pressure on the surface of the MFT significantly enhanced VSD assisted settlement and increase in solids content.
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Gan, Julian, Haug, Moir D, Al-Mamun, Mohammad (2018) Impact of surcharge loading on VSD performance in dewatering oil sands tailings in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Gan_GEO2018_347,
author = {{Gan, Julian}, {Haug, Moir D}, {Al-Mamun, Mohammad}}
title = {Impact of surcharge loading on VSD performance in dewatering oil sands tailings }
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Impact of surcharge loading on VSD performance in dewatering oil sands tailings }
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }