Pullout Behavior of Different Geosynthetics-Influence of Soil Density and Moisture Content

• Type: Article in International Scientific Journal
• Date: 2020

Authors

Fernanda Ferreira (Author) FEUP; Castorina Silva Vieira (Author) FEUP; Maria de Lurdes Lopes (Author) FEUP

Journal

The Journal is awaiting validation by the Administrative Services.

Title: FRONTIERS IN BUILT ENVIRONMENT

Vol. 6

Pages: 1-13

ISSN: 2297-3362

Indexing

ISI Web of Knowledge - 15 Citations

Scopus - 16 Citations

Associated Projects

CDW_LongTerm - Valorização de Resíduos de Construção e Demolição em aterros reforçados com geossintéticos. Estudo do comportamento a longo prazo

Other information

Authenticus ID: P-00R-V2Y

DOI: 10.3389/fbuil.2020.00012

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13