Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloLithological variability of the Mortisa landslide body: assessing geomorphological evolution and numerical modelling through a stochastic approach
Anno di pubblicazione2015
Autore/iBossi G., Borgatti L., Mantovani M., Marcato G., Gottardi G., Pasuto A.
Affiliazioni autoriDepartment of Civil, Chemical, Environmental and Materials Engineering DICAM, Alma Mater Studiorium Università di Bologna, Bologna, Italy. E-mail: CNR-IRPI - National Research Council of Italy, Research Institute for Geo-Hydrological Protection, Padua, Italy.
Autori CNR e affiliazioni
  • inglese
AbstractThe Mortisa landslide is located in the urban area of Cortina d'Ampezzo, north-east Italy. The landslide unit consists of three mudslides; the affected area is 3500 m long, stretching from 1750 to 1300 m a.s.l. The landslide has been investigated since 1998 as its track crosses a national route and some buildings have been severely damaged by the movements. Through radiocarbon dating it was possible to reconstruct the dynamic of the events that led to the formation of the present-day Mortisa slope. The landslide body is composed by interdigitated layers of gravel in a silty clay matrix originated from subsequent earth and debris flows events since the Lateglacial. To assess the stability conditions of the Mortisa landslide via numerical modelling it is crucial to consider the mechanical influence of the gravel lenses in the dynamic of the whole landslide body. However, their position is almost unknown inside the clay matrix with just some certain positions, where stratigraphic data are available. Therefore, in order to calibrate the model on the monitoring data through back analysis, a new procedure has been implemented. A new code permits to generate stochastically several soil configurations which are automatically elaborated by the commercial software FLAC. The results are organized and filtered based on the monitoring data, hence it is possible to select the model that fits the data best. In this way it it possible to obtain a sound back-analysis model of the Mortisa landslide, to be used in order to design countermeasure works and mitigate the risk associated with the phenomenon.
Lingua abstractinglese
Altro abstract-
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Pagine da54
Pagine a57
Pagine totali-
RivistaRendiconti online Società Geologica Italiana
Attiva dal 2008
Editore: Società Geologica Italiana - Roma
Paese di pubblicazione: Italia
Lingua: multilingue
ISSN: 2035-8008
Titolo chiave: Rendiconti online Società Geologica Italiana
Titolo proprio: Rendiconti online Società Geologica Italiana.
Titolo abbreviato: Rendiconti online Soc. Geol. Ital.
Titoli alternativi:
  • Rendiconti online SGI
  • Rendiconti online SGI, note brevi
  • Rendiconti online della Società Geologica Italiana
Numero volume della rivista30
Fascicolo della rivista-
Verificato da refereeSì: Nazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)-
Parole chiaveLandslide modelling; Lateglacial; Stochastic method; Temporal occurrence of landslides
Link (URL, URI)
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Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IRPI — Istituto di ricerca per la protezione idrogeologica
Moduli/Attività/Sottoprogetti CNR
  • TA.P05.005.002 : Frane e altri movimenti in massa: cause, dinamiche ed effetti sull’ambiente
  • TA.P07.015.004 : Analisi geotecnica dei fenomeni di instabilità in pendii naturali e artificiali
Progetti Europei-