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New possibilities of combining calculations and in-situ seismic data in railway embankment state survey
1 N. Laverov Federal Center for Integrated Arctic Research, Ural Branch, Russian Academy of Sciences
2 Russian University of Transport MIIT
3 Schmidt Institute of Physics of the Earth, Russian Academy of Sciences
Journal: Problems of Engineering Seismology
Tome: 51
Number: 2
Year: 2024
Pages: 59–73
UDK: 550.34, 624.44
DOI: 10.21455/VIS2024.2-4
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Antonovskaya
E.S G.N. New possibilities of combining calculations and in-situ seismic data in railway embankment state survey // . 2024. Т. 51. № 2. С. 59–73. DOI: 10.21455/VIS2024.2-4
@article{Antonovskaya
E.SNew2024,
author = "Antonovskaya
E.S, G. N.",
title = "New possibilities of combining calculations and in-situ seismic data in railway embankment state survey",
journal = "Problems of Engineering Seismology",
year = 2024,
volume = "51",
number = "2",
pages = "59–73",
doi = "10.21455/VIS2024.2-4",
language = "English"
}
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Keywords: railway embankment, broadband seismometer, amplitude, shear modulus, thermal engineering design
Аnnotation: New possibilities of seismic technology for inspection of railway embankment soils using the impact of a moving train on the medium are considered. Records of vibrations made by a broadband velocimeter installed in the lower part of the embankment are analyzed. It is shown that the main information is contained in the amplitude value of the first vibration maximum on the vertical component Az after filtering in the 0.01–1.25 Hz band. The value of Az is determined by the shear modulus of the embankment soil. The results of long-term soil condition monitoring of stable and unstable embankments are compared. A significant difference in the time course of shear modulus changes for different embankments during seasonal thawing of the soil is shown. The possibility of predicting the soil condition using thermal engineering calculation of the thawing process is discussed, with the recommendation to use monitoring data to obtain a more reliable result.
