Here the experience gained by the author and his co-researchers, in an association with the Indian Railways for over a decade, on the use of structural health monitoring strategies for establishing the current condition of steel railway bridges and an estimation of the remaining life of those bridges, is presented. Even in the case of bridges where the material used is either masonry or concret...

The road and railway infrastructure in Poland has been intensively developed and modernized for the last years. Around 300 new bridges are built annually. Among the new structures, there is a group of modern extradosed bridges. This paper presents examples of short-, medium-, and long-span extradosed bridges designed and built in recent years in Poland. The following structures are described in...

Catering Service of High-Speed Railway (CSHR) starts at suppliers, includes distribution centers and service stations in cities, and ends at cabinets in high-speed trains. In Distribution System Design (DSD) Problem for CSHR, it is critical to evaluate the alternatives of service stations, which is termed as Service Station Evaluation Problem in Catering Service of High-speed Railway (SSEP-CSHR...

A high-speed railway viaduct experienced a sustained heave at high rates after its construction. The pillars of the bridge are founded on an Eocene hard anhydritic-gypsiferous claystone by means of massive foundations. Field investigations identified an active layer below the piles’ tips where expansions occur as a result of gypsum crystal growth in discontinuities from supersaturated aqueous s...

This work employs synthetic aperture radar interferometry (InSAR) technology to investigate infrastructure deformation in which discontinuous and irregular interferometric fringes make phase unwrapping (PhU) challenging. study aimed improve the reliability practicability of PhU through number redundant observations optimize networks. The proposed networks optimization strategy can efficiency ac...

The vibrations produced by trains include two parts which are deterministic and random vibrations. Due to variation of dynamic loads and patterns of load-time, the random vibration of moving train is one of the most important issues in the field of railway engineering. One of the important sources in producing the train vibrations is rail roughness and irregularities. In this paper, responses o...

With the aim of predicting environmental vibrations induced by an elevated high-speed railway, a machine learning method was developed combining random forest algorithm and Bayesian optimization, using dataset from on-site experiments. When it comes to achieving rapid effective prediction vibrations, there is little research on comparisons between verifications different algorithms, none parame...