Instrumented Static Pile Load Testing of Cast-in-place Concrete Piles in Edmonton
Evan Sau Yue Ma, Michan Condra, Andrew Cushing, Michael Lewis
In the proceedings of: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNCSession: Soil Mechanics and Foundations (Deep Foundations I)
ABSTRACT: Cast-in-place concrete piles were used to support transportation structure foundations for the Valley Line Light Rail Transit project in Edmonton. A series of instrumented conventional static, Osterberg Load Cell (O-Cell) sacrificial pile load tests, and Statnamic (rapid) proof load tests were used to confirm shaft friction and end bearing parameters used in design at three sites along the alignment. This paper evaluates the pile capacities derived from common empirical analysis (α and β-methods) from laboratory and field testing with the results of the sacrificial load tests. Further, the mobilized unit skin friction and end bearing values are compared with established empirical skin-friction settlement (t-z), and end bearing-toe settlement (q-w) curves respectively. Proof load testing is assessed against the static top load and equivalent top load from O-Cell testing plotted with normalized settlement/diameter ratios.
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Ma, Evan Sau Yue, Condra, Michan, Cushing, Andrew, Lewis, Michael (2018) Instrumented Static Pile Load Testing of Cast-in-place Concrete Piles in Edmonton in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Ma_GEO2018_242,
author = {{Ma, Evan Sau Yue}, {Condra, Michan}, {Cushing, Andrew}, {Lewis, Michael}}
title = {Instrumented Static Pile Load Testing of Cast-in-place Concrete Piles in Edmonton }
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {Instrumented Static Pile Load Testing of Cast-in-place Concrete Piles in Edmonton }
booktitle = {Proceedings of the 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC }
year = {2018}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }