A degradação das vias-férreas é um aspeto intrínseco do seu comportamento. Para proceder à reabilitação estrutural da via, de forma a garantir o nível de desempenho exigido, por vezes recorre-se a técnicas de melhoramento ...

The rehabilitation and construction works for the reinforcement of old railway track platforms is a complex, time-consuming and costly process that often causes significant disturbances to normal train operation (Selig & ...

In the transport infrastructures context, the support layers have a fundamental role in the degradation of the track condition, both in structural aspects and in terms of fouling of the materials that comprise them. ...

The railway track system is a crucial infrastructure for the transportation of people and goods in modern societies. With the increase in railway traffic, the availability of the track for monitoring and maintenance purposes ...

Transition zones to bridges and other structures are critical locations in railway tracks that frequently evidence poor long-term performance. Under sleeper pads (USPs) are reported to reduce ballast degradation and ...

The maintenance of railway tracks is one of the aspects of the railway infrastructure management activity that most influences the technical and economic performance of this transportation system. It is common practice to ...

Considering the high costs involved in laboratory analysis of rail ballast geomechanical behaviour, several researchers have been discussing the possibility of using reduced scale samples. This paper presents a method for ...

It is known that locations in the track denoting sudden structural changes induce dynamic amplifications in the train-track interaction, thus leading to higher impact loads from trains, which in turn promote a faster ...

No âmbito de um projeto de investigação conjunto entre o LNEC e a FEUP houve a necessidade de caracterizar a resposta dinâmica da via-férrea em zonas de transição e de calibrar os respetivos modelos ...

A qualidade geométrica das vias-férreas é um parâmetro fundamental no âmbito da avaliação do desempenho destas infraestruturas. Essa qualidade evolui no tempo, essencialmente em função do tráfego e das condições atmosféricas, ...