Investigational studies on beneficial effect of geosynthetic reinforcement at an interface of two layered system

Abstract

The phenomenon of inclusion of geosynthetic reinforcement on California bearing ratio values of two-layered systems along with various[H/4,2H/4,3H/4,5H/4,H/4&2H/4,H/4&3H/4,2H/4&5H/4] thickness configuration and different geosynthetic(geogrid&geotextile)was studied in the laboratory. The thickness of expansive clayey subgrade pavement over a two-layer system of various thickness configuration was computation for unreinforced and reinforced soil layer system. In this investigation thickness configuration of expansive clay soil has been observed. Expansive soils originate in several components of the planet such kind of soil usually comprises of active clay minerals. Geotechnical engineers face several issues while planning groundwork owing to clayey soil due to poor bearing capacity and excessive settlement. Expansive soils are sometimes wet when they are in saturation and these soils rephrase their rigid as they become dry. Expansive clayey are accompanied by less compressive strength and more excessive settlement. This decrease of strength due to moisture results in severe damages to building foundations and roads other vital structures. The utility and efficacy of geosynthetics as a replacement for the sub-grade course for pavements, as a cost-effective approach. Various experiments were conducted on expansive soil with an increase of strength geosynthetics at diverse heights. The foremost aim of this research is to investigate the utilization of Geosynthetics in soil reinforcement applications and to raise the effects of geosynthetic on the strength property of unsaturated soil by carried out the compressive test on the soil samples. The outcomes attained are compared for two treated soil and untreated soil. Without reinforcement the CBR value of clay soil was 2.90. The CBR value is tested by palcing geogrid and geotextile at various heights and it was identified that one layer geogrid palced at H/4 and two layer geotextle was palced at H/4 &2H/4 the distance from the top the CBR test was shows greater values of 2.38 & 2.03 times more than the soil alone.