TY - JOUR ID - 20517 TI - Mitigating the uneven settlement of nearby strip footings on loose saturated sand using concrete pedestals: A model test study JO - Scientia Iranica JA - SCI LA - en SN - 1026-3098 AU - Salamatpoor, S. AU - Jafarian, Y. AU - Hajiannia, A. AD - Department of Civil Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Isfahan, Iran AD - Geotechnical Engineering Research Center, International Institute of Earthquake Engineering and Seismology, Tehran, Iran. AD - Department of Civil Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Isfahan, Iran. Y1 - 2020 PY - 2020 VL - 27 IS - 3 SP - 1162 EP - 1175 KW - Strip footing KW - Sand KW - Pedestal KW - Settlement KW - Tilt KW - Bearing capacity KW - Model test DO - 10.24200/sci.2018.50450.1698 N2 - Abstract: Adjacency and interfering of footings are a matter of importance in geotechnical engineering. The researchers have focused on the adjacency of the footings by several approaches, but the mechanism of nearby footings under unequal and non-simultaneous surcharges have not been explored to date. In this study, two series tests were conducted using small scale 1g models to investigate the behavior of the two adjacent footings under reinforced and unreinforced soil conditions. The footings were installed with different spacing and rested on loose saturate sand. The ultimate bearing capacity, settlement, and tilting of footings were evaluated when the footings are rested on unreinforced sand as well as the sand bed reinforced by concrete pedestals. The results indicate that reinforcing the new footing by three concrete pedestals in the spacing to footing's width ratio (S/B) of 0 (i.e., two coherent footings) results in 67% increase of the bearing capacity of the new footing compared to that of the unreinforced condition. Also, the settlement and tilting of the old footing adjacent to the new footing decrease respectively up to 250% and 600% in comparison to those of the unreinforced condition. UR - https://scientiairanica.sharif.edu/article_20517.html L1 - https://scientiairanica.sharif.edu/article_20517_dcca0dca96b16dcafd6d00af9645dc21.pdf ER -