Floating slab track re-engineering: Experience drawn from a completely renovated FST damaged by major flooding in Sao Paulo metro

Floating Slabtrack Systems have become a common mitigation technique for high vibration isolation performance in urban underground track. Although the engineering concept is rather simple and straightforward, i.e. a sufficient inertial mass supported by a resilient layer with a pre-defined dynamic stiffness, the actual practical execution often is complex...