文章基本信息

标题：Modelling of Railway Track Temperature Regime with Real Heat-Technical Values for Different Climatic Characteristics
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作者：Stanislav Hodás ; Alžbeta Pultznerová
期刊名称：Civil and Environmental Engineering
电子版ISSN：1336-5835
出版年度：2017
卷号：13
期号：2
页码：134-142
DOI：10.1515/cee-2017-0018
语种：English
出版社：Walter de Gruyter GmbH
摘要：High quality of railway track construction is a major priority. One of the quality elements is the resistance to load of railway formation with individual structural layers caused by negative temperatures during the critical freezing period of winter. Numerical modelling allows obtaining more control outputs at different climatic loads. The presented paper shows the load of railway track model with different variants of climate and shows the importance in the designing of the non-transport load under negative temperatures, i.e. observation of transition of the zero isotherm through the layers of railway subgrade. If the subgrade layers of the railway formation are built with high quality and durability then the axis of the track will keep its geometric spatial position during the long-time operation.
关键词：Railway engineering ; Layers of railway subgrade ; Numerical modelling of temperature regime ; Heat-technical values ; Zero isotherm