DYNAMIC SLOPE STABILITY ANALYSIS OF BLACK COTTON SOIL STABILIZED WITH GGBS AND LIME

Praveen Kumar Kundagol, K V Manjunath, R Prabhakara

Abstract: The engineering properties of Black Cotton Soil (BC Soil) improve when it is stabilized with Ground Granulated Blast Furnace Slag (GGBS) and Lime. Engineering properties such as Maximum Dry Density (MDD), Optimum Moisture Content (OMC), Free swell index and unconfined compression strength were determined using various percentages of lime activated GGBS while stabilizing BC Soil. Static shear strength of stabilized mixes wasmeasured using Unconfined Compressive tests and Dynamic shear modulus (Gmax) was determined using Nondestructive testing technique i.e. passing primary wave though the specimen and measuring its velocity. Using the experimental data, a dam slope with height 15m is modeled in GEOSTUDIO software package and Dam’s dynamic stability is analyzed for various trial mixes.

Keywords: Black Cotton Soil, GGBS, Dynamic analysis of Slopes, GEOSTUDIO, Free swell

DOI: https://doi.org/10.15623/ijret.2016.0526017