Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/129563
Author(s): Fernanda Ferreira
Castorina Silva Vieira
Maria de Lurdes Lopes
Title: Pullout Behavior of Different Geosynthetics-Influence of Soil Density and Moisture Content
Issue Date: 2020
Abstract: Geosynthetics have increasingly been used as reinforcement in permanent earth structures, such as road and railway embankments, steep slopes, retaining walls, and bridge abutments. The understanding of soil-geosynthetic interaction is of primary importance for the safe design of geosynthetic-reinforced soil structures, such as those included in transportation infrastructure projects. In this study, the pullout behavior of three different geosynthetics (geogrid, geocomposite reinforcement, and geotextile) embedded in a locally available granite residual soil is assessed through a series of large-scale pullout tests involving different soil moisture and density conditions. Test results show that soil density is a key factor affecting the reinforcement pullout resistance and the failure mode at the interface, regardless of geosynthetic type or soil moisture content. The soil moisture condition may considerably influence the pullout response of the geosynthetics, particularly when the soil is in medium dense state. The geogrid exhibited higher peak pullout resistance than the remaining geosynthetics, which is associated with the significant contribution of the passive resistance mobilized against the geogrid transverse members to the overall pullout capacity of the reinforcement.
URI: https://hdl.handle.net/10216/129563
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/P2020|COMPETE - Projetos em Todos os Domínios Científicos/POCI-01-0145-FEDER-030452/Valorização de Resíduos de Construção e Demolição em aterros reforçados com geossintéticos. Estudo do comportamento a longo prazo/CDW_LongTerm
Document Type: Artigo em Revista Científica Internacional
Rights: openAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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