Mechanics of Ballasted Rail Tracks

The strength, deformation and degradation behaviour of ballast and the effectiveness of geosynthetics in stabilising recycled ballast have been described in this book. Relevant experimental procedures and theoretical aspects are discussed, and a new stress-strain constitutive model for ballast is proposed.

In this book, the authors discuss testing of ballast, including the strength, deformation and degradation aspects of fresh and recycled ballast under monotonic and cyclic loading. The effectiveness of geosynthetics in stabilising recycled ballast has also been examined. A new stress-strain constitutive model for ballast incorporating particle breakage is presented. Finally, a new range of particle gradations, balancing the strength and permeability requirements, has been proposed for future rail tracks. This book is intended as a reference text for final year civil engineering students and postgraduates, and for practicing railway engineers with the task of modernizing existing designs.

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