Evaluation of Full-Scale Pile Load Testing Using Osterberg Cell ® in till and Georgian Bay Shale in Southern Toronto

DOI

10.2991/978-94-6463-258-3_45How to use a DOI?

Keywords

Pile Load Test; Osterberg Cell ®; Rock Socket

Abstract

A full scale, axial Pile Load Test (PLT) using an Osterberg Cell ® (O-Cell) assembly installed in a test shaft, and a lateral PLT using the same test shaft and a reaction shaft were carried out to inform caisson (drilled shaft) design for a project in Toronto near Lake Shore Blvd. Under supervision of Golder (now WSP), Loadtest (a division of Fugro USA Land Inc.) performed a bi-directional axial load test on the test shaft installed within a nominal 1676 diameter rock socket in the Georgian Bay shale, and a nominal 1829 mm diameter shaft in the overburden soils. Subsequently to the axial load test, a lateral load test was performed using the same test shaft and a reaction shaft. The results of the axial testing were compared with literature and the results of other PLTs carried out in the Southern part of the Greater Toronto Area (GTA) to assess local relationships/correlations between Uniaxial Compressive Strength (UCS) and the geotechnical resistance of rock sockets installed in Georgian Bay shale. Using RSPile (by Rocscience Inc.), the results of the lateral testing were used to refine the strain ratio (ε₅₀) parameter for the site’s predominantly native silty clay to silty clay till soils, originally estimated from literature, to create a better model of pile/soil response to lateral forces.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Darcy Hansen
AU  - Joe Carvalho
AU  - Paul Dittrich
PY  - 2023
DA  - 2023/11/08
TI  - Evaluation of Full-Scale Pile Load Testing Using Osterberg Cell ® in till and Georgian Bay Shale in Southern Toronto
BT  - Proceedings of the Rocscience International Conference  (RIC 2023)
PB  - Atlantis Press
SP  - 450
EP  - 463
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-258-3_45
DO  - 10.2991/978-94-6463-258-3_45
ID  - Hansen2023
ER  -