Bearing capacity of strip foundation on granular soil reinforced with geogrid

Articles in Press

Document Type : Original Article

Authors

1 Malayer university

2 Master's student, Faculty of Civil Engineering and Architecture, Malayer University, Iran

10.22034/road.2023.360048.2083

Abstract

Various methods are used to improve, increase carrying capacity and reduce settlement. Geogrids are used as suitable reinforcements. Because they have high tensile strength and a significant ability to be locked with the surrounding environment, geogrids, another group of geosynthetics, are composed of high-density polypropylene and polyethylene injection or very hard polyester fiber weave. This article investigates the effect of granular soil reinforcement on the bearing capacity of a strip foundation that has been modeled using the standard settlement method for up to four layers of geogrid. In addition to investigating the multi-layered model, geogrids' distance and length have been considered variables in the other two models.According to the samples modeled in the finite element software (Plaxis) and the effect of using geogrid in the improvement of granular soils, it can be found that by using four layers of geogrid with a distance of 0.5 from one another, the maximum bearing capacity can be obtained. It was concluded that increasing the length of geogrids does not have much effect on increasing the distance in carrying capacity. Also, increasing the distance of geogrids causes a decrease in carrying capacity. By using more layers of geogrid, the carrying capacity increases.

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