Comparative analysis of calculation models of railway subgrade
| Autor: | I. O. Sviatko, D. O. Yampolskiy, V. D. Petrenko |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
geography
Engineering foundation models geography.geographical_feature_category Computer simulation Soil test business.industry mechanical properties of soil deformation lcsh:TA1001-1280 Numerical modeling Shear resistance General Medicine Structural engineering Subgrade subgrade numerical modeling methods Soil water Geotechnical engineering lcsh:Transportation engineering business Levee |
| Zdroj: | Nauka ta progres transportu, Iss 4 (46), Pp 56-62 (2013) |
| ISSN: | 2307-6666 2307-3489 |
| Popis: | Purpose. In transport engineering structures design, the primary task is to determine the parameters of foundation soil and nuances of its work under loads. It is very important to determine the parameters of shear resistance and the parameters, determining the development of deep deformations in foundation soils, while calculating the soil subgrade - upper track structure interaction. Search for generalized numerical modeling methods of embankment foundation soil work that include not only the analysis of the foundation stress state but also of its deformed one. Methodology. The analysis of existing modern and classical methods of numerical simulation of soil samples under static load was made. Findings. According to traditional methods of analysis of ground masses work, limitation and the qualitative estimation of subgrade deformations is possible only indirectly, through the estimation of stress and comparison of received values with the boundary ones. Originality. A new computational model was proposed in which it will be applied not only classical approach analysis of the soil subgrade stress state, but deformed state will be also taken into account. Practical value. The analysis showed that for accurate analysis of ground masses work it is necessary to develop a generalized methodology for analyzing of the rolling stock - railway subgrade interaction, which will use not only the classical approach of analyzing the soil subgrade stress state, but also take into account its deformed one. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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