Issue 63

G. Antonovskaya et alii, Frattura ed Integrità Strutturale, 63 (2023) 46-60; DOI: 10.3221/IGF-ESIS.63.05

  /

K V V

/ .

(8)

The observed value  / is about 10 -9 , i.e., sounding the medium with the help of such small deformations we obtain information about the variations in the rock deformation    5 6 10 10 .

Figure 11: Seismic monitoring of the stone-earth dam abutment contacts of the Nurek HPP using mechanical vibrations produced by HPP turbine: temporal variations in amplitudes: a – smooth (As), b – fast component of the main frequency 3.(3) Hz (  ) s A A ; c – time derivatives of amplitude (dAs/dt)s and tidal deformation d ε /dt; d – seismicity of Nurek district; e – seismicity of Central Asia; f – map of the epicenters of events of Nurek district, the dotted square shows the Nurek reservoir area. Icons, numbers and letters

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