Prohlížení ČVUT - elektronické publikace dle autora "Valehrach, Jan"
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CANT EXCESS AND CANT DEFICIENCY EVALUATION IN RELATION TO TRAIN SPEED
Autor: Valehrach, Jan; Říha, Tomáš; Dušek, Erik
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)The paper deals with the evaluation of measured speeds of the vehicles on the chosen sections of the railway network in the Czech Republic. In connection with the phased implementation of the AVV system (automatic train ... -
Comprehensive verification of the behavior of the continuous welded rail on the bridge
Autor: Vendel, Jiří; Plášek, Otto; Valehrach, Jan; Říha, Tomáš; Mach, Václav
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The aim of this paper is to verify the real behavior of the continuous welded rail on the bridge with a longer expansion length than allowed by Czech national regulations. Special attention is focused on the rate of ... -
MONITORING OF TRACK SECTIONS WITH LONG-PITCH CORRUGATION
Autor: Valehrach, Jan; Šmíd, Jaroslav
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)The focus of this paper lies on monitoring of the track sections with rail corrugations caused by wheel sliding. Short waves on the running surface of the rail head on low rail are typical for this defect. Long-pitch ... -
Recycled materials for sublayers
Autor: Svoboda, Richard; Hubáčková, Dana; Valehrach, Jan
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)The article focuses on the recycled materials used in sleeper substructure. In the introduction, it summarizes the requirements for bearing layers of railway substructure and recycling of waste construction materials. The ... -
The long-pitch corrugation development in small radii curves
Autor: Valehrach, Jan; Říha, Tomáš; Vendel, Jiří; Plášek, Otto
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The paper deals with the phenomenon of long-pitch corrugation in curves of the small radii and also the effects that accelerate or slow down its development. The paper presents data from sections of railway track measured ...