Modelagem e análise numérica do comportamento de um pavimento ferroviário com o emprego de asfalto

Abstract

Currently, the participation of rail transportation in the Brazilian cargo transport matrix is 14.9%, whereas in countries with continental dimensions, this share is composed, on average, 48%, that is, three times bigger what it is the Brazilian (BNDS, 2018). A large and interconnected rail network benefits the entire production process and the flow of national exports. Therefore, it is of great importance to study Brazilian logistical bottlenecks and to present proposals for improvements. In this sense, this work deals with the Cerrado Railway, a tracking proposal sent by the NELT (Center for Logistics and Transport Studies) of Universidade Federal do Mato Grosso, on the stretch from Alto Araguaia (MT) to Uberlândia (MG), which aims to interconnected the logistic void between the states of Mato Grosso, Goiás and Minas Gerais, provinding the flow of agricultural bulk production through the ports of Vitória, Açu, Santos and Paranaguá. For this, the present work is composed of two steps, the first one is a manual sizing of the trackbed and the second, an analysis of the stress variation in the railway pavement through the Kentrack software, considering the bituminous layer as an alternative to the traditional material used in railways. Thus, an analysis consists of verifying the behavior of the railway layers when varying parameters of the asphalt layer, such as the layer thickness, the type of asphalt binder and the binder content.