Effect of soil moisture content on the bearing capacity of small bored piles in the unsaturated soil of Maringá, Paraná, BrazilVerônica Ricken Marques, Antonio Belincanta, Mary-Antonette Beroya-Eitner, Jorge Luis Almada Augusto, Ewerton Guelssi and Hauke ZachertMATEC Web Conf., 337 (2021) 03006DOI: https://doi.org/10.1051/matecconf/202133703006