IJMTES – LOAD-SETTLEMENT CHARACTERSTISC OF GEOTEXTILE REINFORCED STONE COLUMN INFUSED IN SUBMERGED MUNCIPAL SOLID WASTE

Journal Title : International Journal of Modern Trends in Engineering and Science

Paper Title : LOAD-SETTLEMENT CHARACTERSTICS OF GEO TEXTILE REINFORCED STONE COLUMN INFUSED IN SUBMERGED MUNICIPAL SOLID WASTE

Author’s Name : Parmeshwar Prasadunnamed

Volume 04 Issue 04 2017

ISSN no :  2348-3121

Page no: 139-142

Abstract – MSW (Municipal Solid Waste) mainly contains 70-80% soil content and can be used as an engineering fill material in many infrastructural projects. It has high OMC and shows considerable amount of settlement when loaded. Stone column is used to improve strength of compressible soil. Geotextile reinforced stone column further increase the strength of soil-stone column system. The objective of the present research work is to determine load -settlement characteristics of surface submerged MSW by infusing stone column with L/D ratio 3.75 and 2.5 and position of lateral geotextile circular disc at a distance of L/2, L/3 and L/4 respectively from the top. From the results and analysis, it is observed that stone column is the most effective and practical solution to improve strength and reduce compressibility of MSW and also provide drainage path for infused water to expel out. It is found that load carrying capacity of MSW is increased to 146% by stone column insertion. Also, the load carrying capacity of MSW with reinforced stone column (lateral circular discs) with varying spacing between geotextile disc at L/2, L/3 and L/4 is found to be increased to 201%, 254% and 278% for L/D of 3.75 and 109%, 132% and 168% for L/D of 2.5 in comparison with virgin MSW.

Key Words – stone column, geotextile circular discs, MSW, settlement reduction factor, stress concentration ratio

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