Performance of geosynthetic reinforced/stabilized paved roads built over soft soil under cyclic plate loads

Performance of Geosynthetics Reinforced Subgrade Subjected to Repeated Vehicle Loads: Experimental and Numerical Studies

“…The load amplitude value was supported by previous studies. Most of the researchers used single wheel load between 108 kPa to 800 kPa with frequency ranging from 0.33 Hz to 2 Hz to simulate traffic loading (Faragher et al, 2000;Tafreshi and Khalaj, 2008;Tafreshi and Dawson, 2010;Cao et al, 2016;Abu-Farsakh et al, 2016;Khalaj et al, 2017;Wang et al, 2018). To apply the load uniformly, the ballsocket arrangement was used.…”

“…Repetitive load application causes large settlements in substructure, which ultimately causes failure in the structure. Reinforcing weak soils with geosynthetics and metallic strips are very much acceptable in current construction practices (Gabr and Han, 2005;El Sawwaf and Nazir, 2010;Chen and Abu-Farsakh, 2015;Abu-Farsakh et al, 2016;Sahu et al, 2018). Planar geotextiles (woven and non-woven), geogrids, and three-dimensional geocell reinforcements are used to strengthen the weak subgrades.…”

“…This deformation of subgrade layer generally caused due to the wheel load. Many researchers have highlighted the beneficial effects of geosynthetic reinforcements in foundation applications under static and dynamic loadings (Tafreshi and Dawson, 2010;Asakereh et al, 2013;Hegde and Sitharam, 2013;Abu-Farsakh et al, 2013;Elsaied et al, 2015;Chen and Abu-Farsakh, 2015;Saride et al, 2015;Abu-Farsakh et al, 2016;Hegde and Sitharam, 2016;Suku et al, 2016;Elleboudy et al, 2017;Sahu et al, 2018). However, the behavior of reinforced pavement sections under repeated wheel loads was studied by very few researchers.…”

“…However, the behavior of reinforced pavement sections under repeated wheel loads was studied by very few researchers. The dynamic loadings with varying amplitudes and frequency cause permanent deformations in subgrades (Leng and Gabr, 2002;Saride et al, 2015;Abu-Farsakh et al, 2016;Suku et al, 2016;Elleboudy et al, 2017). Thus, the subgrade soils should be tested under cyclic loads before construction of pavement.…”

“…The use of geocell mattress as a reinforcement decreased the accumulation of plastic strain in subgrade. Abu-Farsakh et al (2016) conducted model tests on reinforced pavement sections using triaxial geogrid and woven geotextile under repeated loading. The study showed that the use of geosynthetic at base-subgrade interface increased the traffic benefit ratio (TBR) beyond 1.5.…”