Review on the Application of Geosynthetic for Ground Improvement

Abstract

Soil is a natural resource which is sometimes used as a construction material. In few cases, soils show poor performance because of its inadequate engineering properties. Due to rapid growth in urbanization, the availability of component land is decreasing. It is forcing the construction work to be done on all types of soil including weak soils. But the poor physical and engineering properties of weak soil do not make it suitable for construction work, and as a result, it requires improvement. By using ground improvement techniques, these weak soils can be converted into competent soil. A planar or three-dimensional synthetic material has been used in this field to improve ground qualities is being termed as Geosynthetic. Geosynthetic ground reinforcement techniques are used to improve the physical and mechanical properties of weak soils and reduce the amount of immediate settlement and slope failure and also widely used for strengthening of in-situ soil, mechanical improvement of pavement layers from the sub-base up to the asphalt wearing course using different type of geosynthetics, from geotextile to geogrids and geocomposite. Geosynthetic clay liners (GCLs) are also used for landfills due to its low permeability and self-healing properties. Within this manuscript, a study has been done about the effects of geogrid, geocell, or geotextile on the bearing capacity of the soil. It is observed that there is fair amount of increment in the load carrying capacity of soil and reduced the amount of displacement in the footing. Geosynthetic reinforcement is also used for railway track construction and embankment construction.KeywordsBearing capacitySoil reinforcementGeogridGeotextileGeocellGeosynthetic clay liners