Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-ecology of the North Caucasus” (CIGGG 2018)

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Influence of Soils on Impact Parameters of Seismic Effect

Authors
C.S. Kharebov, V.B. Zaalishvili, T.V. Zaks, A.N. Baskaev, I.G Archireeva, R.R Gogichev, M.V. Maysuradze, M.I. Chitishvili
Corresponding Author
C.S. Kharebov
Available Online March 2019.
DOI
10.2991/ciggg-18.2019.31How to use a DOI?
Keywords
strong motions database; earthquake; epicentral distance; P-wave velocity; S-wave velocity; intensity; peak vertical acceleration; peak horizontal acceleration
Abstract

The aim of the article is to study the influence of the propagation velocity of longitudinal Vp and transverse Vs waves, as well as the density ? of soil, on the real seismic effects parameters: intensity, peak acceleration, frequency. To achieve this goal, the Geophysical Institute of the VSC RAS developed a database containing 63478 three-dimensional records of earthquakes from 11/05/1996 through 31/12/2017, including all KNET records with epicentral distance up to 50 km and intensity above 0.5 JMA. The records were amiably provided for non-commercial use by the KNET system. In the database Vp, Vs, ? are contained in the form of tables and graphs of the stations soils down to depth of 20 m. We considered the intervals of epicentral distances of 0-10, 5-15, 10-20, 15-25, 20-30, 35-45, 40-50 km and determined the mean values of Vp, Vs, ? and seismic parameters for different magnitudes in these intervals: M>6, 5244 m/s and another Vs<244 m/s, the PHA is 5-10 gal above on soils with high Vs ceteris paribus, while p<0.05. The study of PVA showed that Vs does not affect peak vertical acceleration with p<0.05. For soils with different Vp values, the intensity on soils with high Vp values is significantly lower than on soils with low Vp values. Note that this effect does not occur for events with high magnitudes greater than 6, where confidence intervals overlap due to a small number of recorded events. The results showed that for soils with high and low Vp values, the difference between the average PHA and PVA values between soils with different Vp values is not reliable (p>0.05) for all magnitude ranges and for epicentral distances not exceeding 50 km.

Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-ecology of the North Caucasus” (CIGGG 2018)
Series
Advances in Engineering Research
Publication Date
March 2019
ISBN
978-94-6252-690-7
ISSN
2352-5401
DOI
10.2991/ciggg-18.2019.31How to use a DOI?
Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - C.S. Kharebov
AU  - V.B. Zaalishvili
AU  - T.V. Zaks
AU  - A.N. Baskaev
AU  - I.G Archireeva
AU  - R.R Gogichev
AU  - M.V. Maysuradze
AU  - M.I. Chitishvili
PY  - 2019/03
DA  - 2019/03
TI  - Influence of Soils on Impact Parameters of Seismic Effect
BT  - Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-ecology of the North Caucasus” (CIGGG 2018)
PB  - Atlantis Press
SP  - 164
EP  - 168
SN  - 2352-5401
UR  - https://doi.org/10.2991/ciggg-18.2019.31
DO  - 10.2991/ciggg-18.2019.31
ID  - Kharebov2019/03
ER  -