Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Post-liquefaction settlement analysis of shallow foundations: numerical modeling and effective parameters
This paper evaluates the seismic performance of shallow foundations located on liquefiable soil during seismic shaking and post-liquefaction using numerical analyses. Numerical simulations are performed using the UBCSAND constitutive model in FLAC software with validation against prior centrifuge tests conducted by the last author. The numerical analyses carried out in this study emphasize the post-seismic-liquefaction settlement of foundations which has not been addressed adequately compared with the co-seismic settlements. The effect of the foundation surcharge type, embedment depth, relative density, compaction depth, and foundation width are studied by a series of numerical parametric studies. The results show that soil densification and embedment depth can significantly affect the post-liquefaction-induced settlement of shallow foundations compared to the other simulated mitigation strategies. The results indicate that simultaneously considering both the relative density and the compaction depth ratio can significantly contribute to reducing post-liquefaction foundation settlement.
Post-liquefaction settlement analysis of shallow foundations: numerical modeling and effective parameters
This paper evaluates the seismic performance of shallow foundations located on liquefiable soil during seismic shaking and post-liquefaction using numerical analyses. Numerical simulations are performed using the UBCSAND constitutive model in FLAC software with validation against prior centrifuge tests conducted by the last author. The numerical analyses carried out in this study emphasize the post-seismic-liquefaction settlement of foundations which has not been addressed adequately compared with the co-seismic settlements. The effect of the foundation surcharge type, embedment depth, relative density, compaction depth, and foundation width are studied by a series of numerical parametric studies. The results show that soil densification and embedment depth can significantly affect the post-liquefaction-induced settlement of shallow foundations compared to the other simulated mitigation strategies. The results indicate that simultaneously considering both the relative density and the compaction depth ratio can significantly contribute to reducing post-liquefaction foundation settlement.
Post-liquefaction settlement analysis of shallow foundations: numerical modeling and effective parameters
Lashgari, Ali (Autor:in) / Nojavan, Nima (Autor:in) / Jafarian, Yaser (Autor:in)
International Journal of Geotechnical Engineering ; 18 ; 609-622
02.07.2024
14 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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