@article{dada_massad_2021,  title={Interpretation of bi-directional tests on piles with the evaluation of stress relief at the pile toe},  volume={44},  ISSN={2675-5475},  url={https://doi.org/10.28927/SR.2021.062021},  DOI={10.28927/SR.2021.062021},  number={2},  journal={Soils and Rocks},  publisher={Associação Brasileira de Mecânica dos Solos},  author={Dada, Thais Lucouvicz and Massad, Faiçal},  year={2021},  pages={e2021062021} }