Abstract:
This study aims at experimentally explaining the potential benefits of geogrid reinforcedsoil foundations using large scale field tests. A total of 8 large scale field tests were carriedout to evaluate the effects of replacing natural clay soil with stronger granular fill layer andsingle-multiple layers of geogrid reinforcement placed into granular fill below circularfootings. The large scale field tests were performed using two different sizes of the circularfooting diameters which have 0.30 and 0.90m. The results of testing program are presented interms of subgrade modulus and bearing capacity. Subgrade modulus and bearing capacityvalues were calculated for each test at settlements of 10, 20 and 30mm.It has been seen that based on the test results, the use of granular fill and geogrid forreinforced soil foundations (RSF) have considerable effects on the subgrade modulus andbearing capacity.
