http://www.cnr.it/ontology/cnr/individuo/prodotto/ID259726
Influence of infiltration on the periodic re-activation of slow movements in an overconsolidated clay slope (Articolo in rivista)
- Type
- Label
- Influence of infiltration on the periodic re-activation of slow movements in an overconsolidated clay slope (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1139/cgj-2012-0121 (literal)
- Alternative label
Paolo Tommasi, Daniela Boldini, Giada Caldarini, Niccolò Coli (2013)
Influence of infiltration on the periodic re-activation of slow movements in an overconsolidated clay slope
in Canadian geotechnical journal (Print); National Research Council Of Canada-Nrc Research Press, Ottawa (Canada)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Paolo Tommasi, Daniela Boldini, Giada Caldarini, Niccolò Coli (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- CNR-IGAG, Rome
Department of Civil, Chemical, Environmental and Material Engineering, University of Bologna
Department of Civil, Chemical, Environmental and Material Engineering, University of Bologna
Libero Professionista Latzfons-Chiusa, Italy (literal)
- Titolo
- Influence of infiltration on the periodic re-activation of slow movements in an overconsolidated clay slope (literal)
- Abstract
- In Orvieto (central Italy), overconsolidated clay slopes are affected by intermittent slow movements at the top of the clay
formation and within the landslide debris cover. Monthly data from inclinometers, Casagrande piezometers, and rainfall gauges show
that velocity, pore pressure, and rainfall are closely related. A relationship is suggested to predict slope re-activation using rainfall
history alone, once a pore pressure threshold has been reached and response of pore pressures to rainfall is understood. Pore pressures
have been continuously monitored through vibrating wire cells. The threshold for shallow movements, critical for infrastructures and
buildings, was identified by comparing displacement histories of a shallow movement, representative of many other ones recognized
over the slope, and pore pressure, both measured at the centre of the sliding mass. The impact of infiltrated rainfall on groundwater
flow was investigated through transient seepage analyses. Seepage analyses performed using hydraulic properties from laboratory
and in situ tests do not fully depict the observed pore pressures because field data miss some structural characters and lithologic
variations. The hydraulic properties of the shallower model layers were refined, based on field observations and interpretation of
monitoring data, to have a good match between computed and measured pore pressures. Once the model is tested at different
locations along a slope, it could be used to predict movement re-activation using only rainfall data. (literal)
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