Articles | Volume 3, issue 6
Nat. Hazards Earth Syst. Sci., 3, 515–521, 2003
https://doi.org/10.5194/nhess-3-515-2003

Special issue: Monitoring, modeling and mapping of mass movements

Nat. Hazards Earth Syst. Sci., 3, 515–521, 2003
https://doi.org/10.5194/nhess-3-515-2003

  31 Dec 2003

31 Dec 2003

Slope stability monitoring from microseismic field using polarization methodology

Yu. I. Kolesnikov, M. M. Nemirovich-Danchenko, S. V. Goldin, and V. S. Seleznev Yu. I. Kolesnikov et al.
  • Institute of Geophysics SB RAS, 3 Pr. Akademika Koptyuga, 630090 Novosibirsk, Russia

Abstract. Numerical simulation of seismoacoustic emission (SAE) associated with fracturing in zones of shear stress concentration shows that SAE signals are polarized along the stress direction. The proposed polarization methodology for monitoring of slope stability makes use of three-component recording of the microseismic field on a slope in order to pick the signals of slope processes by filtering and polarization analysis. Slope activity is indicated by rather strong roughly horizontal polarization of the respective portion of the field in the direction of slope dip. The methodology was tested in microseismic observations on a landslide slope in the Northern Tien-Shan (Kyrgyzstan).

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