Research Information System
6th International Eurasian Conference on Science, Engineering and Technology (EurasianSciEnTech 2025), Ankara, Turkey, 25 - 27 June 2025, pp.1344-1351, (Full Text)
To understand the behavior of geocells under tensile stress conditions in geosynthetic reinforced retaining
walls, it is necessary to know the geocell-soil interfacial properties. A series of large-scale direct shear tests
were performed to investigate the effect of soil grain size on the interfacial properties of geocell-reinforced
granular soils. The variable parameters included poorly graded sand samples with different mean particle sizes
(0.21 mm, 0.50 mm, 0.78 mm, 1.25 mm and 3.10 mm) and different normal stresses (55, 110 and 220 kPa).
To compare the reinforced strength of the shear plane, the sliding properties actuated in the slip plane, including
friction angle and apparent cohesion, were evaluated in the unreinforced and geocell-reinforced cases. The
results showed that the shear strength properties of the interface improved due to the presence of the geocell.
The shear strength at the geocell-soil interface was enhanced by increasing the mean particle sizes.