Effect of Reinforcement In Slope Stabilization of Road Embankment of Dhaka-Feni Express Way

Abstract

Slope stability is the potential of soil covered slopes to withstand and undergo movement. Stability can be determined by the balancing of shear stress and shear strength. A stable slope can be initially affected by preparatory factors, making the slope conditionally unstable. The factors which can trigger a slope failure can be climatic events which can then make the slope unstable, leading to mass movements. Mass movements can be caused by increase in shear stress, such as loading, lateral pressure, and transient forces. This thesis mainly focuses on the effect on reinforcement of a highway road embankment section in order to stabilize the slope. We are mainly considering the impact of water level fluctuation on the stability of slope due to which soil water coupling occurs and also considering the variation in dimension of slopes. In these analyses we have done our numerical analyses with the Finite Element Method computer program FEM-tij 2D and a comparison of the analyzed results. The finite element method needs additional information regarding the potential performance of a slope but just basic parameter information is needed when we using traditional methods. A divergence should be made between drained and undrained strength of cohesive materials. Drained condition refers to the condition where drainage is allowed whereas undrained condition refers to the condition where drainage is restricted.