Conference Proceedings

Performance of a new driven battered micropiles system in sand

A Mehdizadeh, M Miri Disfani, GA NArsilio, CF Tsang, R Evans, E Gad

Deep Foundations Institute | Published : 2018


A new concrete-free driven micropile footing system that consists of a steel pile cap and a number of inclined small diameter steel micropiles has been tested. This new footing system is light enough to be manually handled and can be installed in a short time-frame using small jackhammers. There is minimal soil disturbance and no need for any excavation making it a smart solution for supporting light structures. This paper presents the performance of this new footing system in a medium dense sand formation under vertical compressive and tensile pull-out forces. Two different combinations (with different embedment depths) were tested. Ultimate bearing and pullout capacities were determined us..

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Awarded by Australian Research Council

Funding Acknowledgements

This research was funded by the Australian Research Council Linkage scheme (project ID LP160100828). In addition, the authors acknowledge the financial and in-kind support provided by Surefoot Pandoe Pty Ltd. Camilo Pineda, senior structural engineer at Surefoot is acknowledged for his contribution to this research.