Geosynthetic Encased Column: comparison between numerical and experimental results

Autor:	Nima Rostami Alkhorshid, Gregório Luis Silva Araújo, Ennio M. Palmeira
Rok vydání:	2021
Předmět:	Soft soil Laboratory test Finite element method Materials science Geosynthetic Granular column Geotechnical engineering Geotechnical Engineering and Engineering Geology Column (database) Embankment
Zdroj:	Soils and Rocks, Volume: 44, Issue: 4, Article number: e2021073121, Published: 03 DEC 2021
ISSN:	2675-5475 1980-9743
DOI:	10.28927/sr.2021.073121
Popis:	The use of granular column is one of the ground improvement methods used for soft soils. This method improves the foundation soils mechanical properties by displacing the soft soil with the compacted granular columns. The columns have high permeability that can accelerate the excess pore water pressure produced in soft soils and increase the undrained shear strength. When it comes to very soft soils, the use of granular columns is not of interest since these soils present no significant confinement to the columns. Here comes the encased columns that receive the confinement from the encasement materials. In this study, the influence of the column installation method on the surrounding soil and the encasement effect on the granular column performance were investigated using numerical analyses and experimental tests. The results show that numerical simulations can reasonably predict the behavior of both the encased column and the surrounding soil.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1ab90de4c861cbb8fd55e45cea8e748 https://doi.org/10.28927/sr.2021.073121 Zobrazit plný text záznamu