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Peculiarities of seismic microzoning on permafrost
1 Sergeev Institute of Environmental Geosciences, Russian Academy of Sciences
2 Schmidt Institute of Physics of the Earth, Russian Academy of Sciences
Journal: Problems of Engineering Seismology
Tome: 50
Number: 4
Year: 2023
Pages: 106-114
UDK: 550.34.016
DOI: 10.21455/VIS2023.4-7
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Trifonov
S.Yu B.A. Peculiarities of seismic microzoning on permafrost // . 2023. Т. 50. № 4. С. 106-114. DOI: 10.21455/VIS2023.4-7
@article{Trifonov
S.YuPeculiarities2023,
author = "Trifonov
S.Yu, B. A.",
title = "Peculiarities of seismic microzoning on permafrost",
journal = "Problems of Engineering Seismology",
year = 2023,
volume = "50",
number = "4",
pages = "106-114",
doi = "10.21455/VIS2023.4-7",
language = "English"
}
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Keywords: permafrost, seismic properties of frozen rocky soils, magnitude increments, seismic stiffness method
Аnnotation: The article considers peculiarities of seismic microzoning on permafrost. Due to the complexity of taking into account all changes in seismic properties of dispersed soils under the influence of climatic and anthropogenic factors, it is proposed to take frozen rocky soils as the reference soils of the permafrost zone, in relation to which the calculations are carried out by seismic stiffness method. When constructing a generalized model of rocky soil, its seismic properties, lithology, geocryological state, and fracturing of the rock mass should be taken into account. It is shown how the calculated values of seismic intensity increments change when the state of the rocky soil changes from frozen to thawed water-saturated and air-dry.
