Problems of Engineering Seismology: article

Microseismic record quality dependence on the velocimeters installation conditions
M.N. Voskresenskiy
Bulashevich Institute of Geophysics, Ural Branch of the Russian Academy of Sciences
Journal: Problems of Engineering Seismology
Tome: 51
Number: 4
Year: 2024
Pages: 118-131
UDK: 550.348.422
DOI: 10.21455/VIS2024.4-9
Keywords: microtremor, spectral ratios, HVSR, microseism recording method, velocimeters installation conditions
Аnnotation: The use of microseismic vibration records to solve engineering problems is primarily associated with the simplicity of the method of recording primary data and their subsequent processing. It is used to study the resonance characteristics of the soil base, delineate areas of loosening, determine the increment of seismic intensity (according to S.V. Medvedev), etc. Instrumental measurements are carried out using several sets of equipment. In the presented study, each device is checked for identity of operation, as well as several experiments aimed at studying the effect of the conditions of installing velocimeters on the quality of the data obtained. The evaluation criterion is the comparison of the curves of spectral ratios or HVSR characteristics (HVSR – horizontal to vertical spectral ratio).