Time response of a landslide to meteorological events (Articolo in rivista)

  • Time response of a landslide to meteorological events (Articolo in rivista) (literal)
  • 2006-01-01T00:00:00+01:00 (literal)
  • 10.5194/nhess-6-179-2006 (literal)
Alternative label
  • Lollino G., Arattano M., Allasia P., Giordan D. (2006)
    Time response of a landslide to meteorological events
    in Natural hazards and earth system sciences (Print); European Geosciences Union (EGU), "Katlenburg-Lindau ; Munich" (Germania)
  • Lollino G., Arattano M., Allasia P., Giordan D. (literal)
Pagina inizio
  • 179 (literal)
Pagina fine
  • 184 (literal)
  • http://www.nat-hazards-earth-syst-sci.net/6/179/2006/nhess-6-179-2006.html (literal)
  • 6 (literal)
  • European Geosciences Union 2006. (literal)
  • 6 (literal)
  • ISI Web of Science (WOS) (literal)
  • CNR IRPI Strada delle Cacce, 73 - 10135 Torino - Tel.:011 3977 834 - Fax.: 011 3977 821 WEB ADDRESS: http://www.irpi.to.cnr.it (literal)
  • Time response of a landslide to meteorological events (literal)
  • A landslide affecting two small villages located on the Northwestern Italian Apennines has been investigated since the year 2000 through the use of different equipment. A complex monitoring system has been installed in the area. The system includes several inclinometers, piezometers and a raingauge. An Automatic Inclinometric System (AIS) has been also installed that automatically performs measurements, twice a day, along the entire length of a pipe that is 45m deep. This monitoring system has been set up to identify a methodology that allowed to deal with landslides, trying to predict their behaviour beforehand for warning purposes. Previous researches carried out in the same area for a period of about 7 months, in the year 2000, have allowed to identify a correlation between deep slope movements and rainfalls. In particular, it has been possible to determine the time lag needed for a rainfall peak to produce a corresponding peak of the landslide movements; this time lag was of 9 days. This result was possible because the AIS allows toobtain, as mentioned, daily inclinometric measurements that can be correlated with the recorded rainfalls. In the present report we have extended the analysis of the correlation between deep slope movements and rainfalls to a greater period of observation (2 years) to verify over this period the consistency of the time lag mentioned above. The time lag previously found has been confirmed. We have also examined the possibility to extend to the entire landslide body the correlation that has been found locally, analyzing the results of the remaining inclinometric tubes with traditional reading installed on the landslide and comparing them with the results of the AIS. The output of the tubes equipped with piezometric cells has also been analyzed. The relations existing among rainfalls, ground water level oscillations and the related slope movements have been explored. (literal)
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