The Effect of Geotextile and Grading on the Bearing Ratio of Granular Soils

Geotextiles have been successfully used for reinforcement of soils to improve the bearing capacity. In this paper the geotextile as a tensional material have been used for reinforcement of granular soils. Laboratory California bearing ratio (CBR) tests were performed to investigate the load-penetration behavior of reinforced granular soils with geotextile. Samples of granular soil with different grading are selected and tested without reinforcement. Then by placing geotextile at certain depth within sample height in one and two layers, the effects of the number of geotextile on the increase in bearing capacity of reinforced granular soils and grading on performance of geotextile is discussed. The result of these tests shows that, bearing ratio of reinforced granular soils with geotextile increases