Showing papers by "Sanjay Kumar Shukla published in 2008"
TL;DR: In this paper, the authors derived an expression for the factor of safety with respect to the overall slope stability of a prestressed geosynthetic-reinforced embankment resting on soft ground.
Abstract: This Technical Note presents the derivation of an expression for the factor of safety with respect to the overall slope stability of a prestressed geosynthetic-reinforced embankment resting on soft ground. A detailed parametric study is carried out to observe the effect on the factor of safety of prestressing the geosynthetic reinforcement. It is found that prestressing the geosynthetic reinforcement is more beneficial for soft ground than stiff ground when the foundation soil is much more shallow than the height of the embankment. If the mobilised tensile force is lower than the required value for overall slope stability, which is typical at the end of embankment construction, prestressing the geosynthetic proves to be effective in providing overall slope stability. Relatively steep side slopes of embankments can be provided by prestressing the geosynthetic reinforcement. The beneficial effect of prestressing is more significant for cohesionless embankment soil than for cohesive soil.
17 citations
TL;DR: In this article, an analytical derivation of a time-dependent expression for the modulus of subgrade reaction of the saturated cohesive foundation soil considering the primary consolidation aspect is presented, which involves parameters that can be determined by conducting one-dimensional laboratory consolidation test on the undisturbed soil specimens.
Abstract: This paper presents an analytical derivation of a time-dependent expression for the modulus of subgrade reaction of the saturated cohesive foundation soil considering the primary consolidation aspect. The newly developed expression involves parameters that can be determined by conducting one-dimensional laboratory consolidation test on the undisturbed soil specimens. An experimental verification of the analytical expression is presented to observe its accuracy. A parametric study is also presented to point out the care required while selecting the parameters used in the expression.