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Journal of Civil Engineering and Architecture 2013年第8期7卷 964-972页

作者： Cassio Eduardo Lima de Paiva Jose Lulz Antunes de Oliveira e Sousa Luiz Carlos de Almeida Paulo RobertoAguiar Luiz Femando de Melo Correia Juliana Silva Watanabe Rodrigo Moreira de Carvalho Creso deFranco Peixoto Denis Palomo Paschoalin Geotecnical and Ttransportation Department & Department of Structure School of Civil Engineering University of CampinasCampinas 13083-852 Brazil Ignatian Educational Foundation S6o Bernardo do Campo 09850-901 Brazil VALE S A. Belo Horizonte 30140-001 Brazil

The EFVM （Vitoria Minas railroad） is one of the main railways in Brazil. It transports freight trains of ore, 220 wagons each. These wagons have 2 boogies of 2 axles each and 32 metric tons on metre gauge. Elastic strains were measured on a special part of this railway due to these trains. The main load to evaluate stresses.and strains was a G 16 Locomotive, a C-C kind from Vale, a Brazilian Company. The measurements were obtained by dynamic deflectometer installed on a main line of this railway, near Ipatinga, a city from Minas Gerais, one of Brazil states. This track was equipped to obtain stresses.under an equal repeated static load A simulation of the stresses.was made under critical strain by Ferrovia 1.0 software. It was also made an evaluation of unequal results from neighbor sleepers taking in comparison two equipped parts of this railway, one with compacted ballast and no compaction to the other. The results were strain limited, avoiding breakage or damage to the studied rails. This work analyses these measurements focusing on the improvement of track quality.

关键词： railway track field strain survey rail stresses.

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