The main scientific goal is to study seismic effects generated by blasting operations and/or other manifestations of technical seismicity, which are occurring in proximity during driving of shallow underground constructions (e.g. manifestation in urban areas in/above driven construction or suburban tunnel). The project completes current information about seismic effects, especially in the nearest distances. Mathematical modeling (e.g. system CESAR) will be used for evaluation of kinematics (spreading of waves, attenuation) and dynamics (maximum amplitudes, spectra of vibrations). Results from parametric models of seismic response will be compared with results from experimental measurements that will be performed both inside underground construction (prospective bottom of tunnel or underground construction) and outside in small distances from the source of vibrations (first meters up to tens of meters). Special attention will be dedicated to the methodology of measurements (e.g. anchoring of sensors) to obtain a reliable record of vibrations in both time and frequency domains. (en)
Cílem projektu je studium seizmických účinků trhacích prací, a případně účinků další technické seizmicity, které vznikají při ražbě mělkých podzemních děl v malých vzdálenostech od zdroje vibrací. K tomu bude použito matematické modelování dynamické odezvy a experimentální měření.