Abstract

Reinforced soil technology is considered one of the most important methods of soilimprovement due to its simplicity and speed in implementation and saving cost. In this researcha strip footing and geogrid (Tensar SS2) were used to reinforced sandy soil and investigatedthe effect of relative density on bearing pressure and compressibility. The soil was strengthenwith four layers of (geogrid Tensar SS2) and used a five relative densities were (30.7%, 49.7%,56.5%, 64%, and 75.9%) to include cases of loose, medium and dense sand. The results alsoshowed the effect of relative density on the bearing capacity and the settlement as experimentaltests indicated that increasing the relative density from 30.9% to 64% gave an improvement insoil bearing capacity, as well as an effective improvement in carrying capacity when increasingthe relative density from 64%. The results showed that the bearing capacity when using relativedensities of 49.7%, 56.5%, 64%, 75.9% increased by 1.218, 1.287, 1.512, and 2.1799,respectively, of the bearing capacity of reinforced soils with relative density of 30.7%. As forthe effect of relative density on the settlement, it was found that the settlement is generally lessin the case of soil with higher relative density.

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The article was added to IASJ on 2022-11-12

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