-
oa Regional Model Vs30 and Seismic Ground Types for Ukraine
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 17th International Conference Monitoring of Geological Processes and Ecological Condition of the Environment, Nov 2023, Volume 2023, p.1 - 5
Abstract
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 and seismic ground types was determined based on topographical and seismic field data for Ukraine. The proposed research includes constructing the VS 30 scheme using the Wald & Allen method.
Based on the estimated VS30 the amplification coefficients were determined and the regional site classification of Ukraine into soil categories based on Eurocode 8 was carried out. Results could be used in the foreseen update of the national building codes.