Naslov
Nature of friction between geogrids and soil

Autori
Mulabdić, Mensur ; Minažek, Krunoslav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 5th European Geosynthetics Congress. Proceedings Vol 4. Topic 5: Soil improvement and reinforcement / - Valencia, 2012

Skup
5th European Geosynthetics Congress

Mjesto i datum
Valencia, Španjolska, 16.09.2012. - 19.09.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
geosyntetics; pullout; friction

Sažetak
Numerous test results suggest that pullout force is dramatically different for geotextile and geogrids due to presence of grid transversal ribs which create passive resistance during pullout through the soil. In this article pullout tests performed on different grids on non-cohesive soils are analyzed, illustrating influence of geometry of grids, grain size and mechanical properties of grids on pullout resistance and role of friction and bearing capacity of transversal ribs. It is shown that for small grain size soils the same friction formula for grids and geotextiles can be used, but with increase of soil grain size, grid stifness and with proper relation of grid opening geometry and grain size of soil, overall resistance is much higher and friction is related to sliding among particles, while slip surface is above plain of geogrid.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA