 |
| Titel |
Time response of a landslide to meteorological events |
| VerfasserIn |
G. Lollino, M. Arattano, P. Allasia, D. Giordan |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 6, no. 2 ; Nr. 6, no. 2 (2006-03-15), S.179-184 |
| Datensatznummer |
250003396
|
| Publikation (Nr.) |
 copernicus.org/nhess-6-179-2006.pdf |
|
|
|
|
|
| Zusammenfassung |
| 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 45 m 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 to obtain, 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 |
| |
|
| Teil von |
|
|
|
|
|
|
|
|