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

Abstract

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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Grants

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.