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Abstract

Summary

The near-surface geology influences the amplitudes of seismic waves during earthquakes, which could be strongly amplified and increase the seismic hazard of the area. The near-surface amplification is recently characterized by the average seismic shear-wave velocity in the uppermost 30 m (VS30), which is a key parameter for studying local seismic conditions (amplification coefficients and type of soils according to Eurocode 8).

VS30 was determined based on topographical and seismic field data for the whole Czech Republic. The proposed research includes constructing the VS30 scheme using the Wald & Allen method.

Based on the estimated VS30 the amplification coefficients were determined and the regional site classification of the Czech Republic into soil categories based on Eurocode 8 was carried out. Results could be used in the foreseen update of the national building codes.

EAGE Publications BV © 2022 The Authors © European Association of Geoscientists and Engineers
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2022-11-15
2026-01-16

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References

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/content/papers/10.3997/2214-4609.2022580241
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Near Surface Site Characterization Using VS30 on the Regional Scale in the Czech Republic
Conference Proceedings 2022, 1 (2022); https://doi.org/10.3997/2214-4609.2022580241
/content/papers/10.3997/2214-4609.2022580241
/content/papers/10.3997/2214-4609.2022580241
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