STUDY OF BEHAVIOUR OF BALLAST USING GEOSYNTHETICS

摘要

Well-built and maintained highways/railway tracks play major role in the development of any nation.The ballast and its engineering behavior have a key role to govern the stability and the performance of railway tracks. In present study, the effect of geosynthetic reinforcement on the (cumulative) plastic settlement, of point loaded strip footing on a thick layer of granular aggregate overlying different compressible bases has been studied under static loads and cyclic load tests. The prospective use of different types of geosynthetics to improve the performance of fresh and recycled ballast has also been investigated. The results show that inclusion of geosynthetics increases the coefficient of elastic uniform compression by around 38% and significantly increases the ultimate load carrying capacity.