Location
New York, New York
Date
15 Apr 2004, 1:00pm - 2:45pm
Abstract
The hills rising in the urban area of Napoli (Italy ) are the products of eruptive activity in the volcanic areas of Campi Flegrei and Somma Vesuvio. The unsaturated pyroclastic cover, weathered and interbedded with paleosols , is frequently affected by instabilityphenomena that have slight thickness and extension. The observed landslides can be classified as complex phenomena: the movements start as a translational or rotational sliding or as a rock-fall and evolve as the debris flows. 90% of the cases occur during or after severe rainfalls. As is well known , the stability of slopes is affected by climatic conditions, such as rainfall and evapotranspiration, which affect the matric suction near the ground surface. A slope analysis requires that an in situ matric suction profile be measured or predicted. A monitoring system was therefore developed to collect data on suction profiles in pyroclastic soils. Four slopes, chosen as representative of morphological, geological and geotechnical triggering conditions in the studied area, were outfitted with rain gauges, vacuum tensiometers, psychrometers, tiltmeters and TDR gauges.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Evangelista, Aldo and di Santolo, Anna Scotto, "Analysis and Field Monitoring of Slope Stability in Unsaturated Pyroclastic Soil Slopes in Napoli, Italy" (2004). International Conference on Case Histories in Geotechnical Engineering. 18.
https://scholarsmine.mst.edu/icchge/5icchge/session02/18
Analysis and Field Monitoring of Slope Stability in Unsaturated Pyroclastic Soil Slopes in Napoli, Italy
New York, New York
The hills rising in the urban area of Napoli (Italy ) are the products of eruptive activity in the volcanic areas of Campi Flegrei and Somma Vesuvio. The unsaturated pyroclastic cover, weathered and interbedded with paleosols , is frequently affected by instabilityphenomena that have slight thickness and extension. The observed landslides can be classified as complex phenomena: the movements start as a translational or rotational sliding or as a rock-fall and evolve as the debris flows. 90% of the cases occur during or after severe rainfalls. As is well known , the stability of slopes is affected by climatic conditions, such as rainfall and evapotranspiration, which affect the matric suction near the ground surface. A slope analysis requires that an in situ matric suction profile be measured or predicted. A monitoring system was therefore developed to collect data on suction profiles in pyroclastic soils. Four slopes, chosen as representative of morphological, geological and geotechnical triggering conditions in the studied area, were outfitted with rain gauges, vacuum tensiometers, psychrometers, tiltmeters and TDR gauges.
