Performance analysis of multiple trenches in train-induced wave mitigation

Abstract

The trains passing on the railway tracks produce excessive vibrations normally propagating in the form of Rayleigh waves. Application of multiple trenches in train-induced ground vibration mitigation is studied in this paper. Ground is modeled employing the finite element method (FEM) and the train loading is simulated by series of successive moving loads. Validity of the FE model is then verified using the available experimental data in the literature. A comprehensive parametric study is then carried out and dynamic performance of the trenches is evaluated in range of high-speed operations. Effects of different parameters including the train speed and trench configurations and locations, on the vibration mitigation levels(VML) are investigated.