The aim of the research project is to study the assessment of the critical level associated with large rock landslides. This project is funded by MIUR and involves three Research Units: RU1 (University of Florence), RU2 (University of Bologna) and RU3 (Politecnico di Torino).
The Politecnico di Torino research unit (RU3) will particularly focus on the GBInSAR data evaluation and interpretation (WP1), recorded at 3 reference sites (Torgiovannetto di Assisi (Pg) - pilot area; Stromboli (Me) and Beauregard (Ao) - experimental sites) and on the development of reasonable scenarios by means of numerical modelling (WP5).
The radar interferometry technique will be validated by comparison with data obtained by traditional monitoring methods at the trial sites. Acquisition and interpretation of interferometric data will allow one to produce a 3D survey of the slope topography to be used as input data for numerical simulations and, most of all, to determine the displacements along the slope to validate the numerical simulations and the back analyses.
The use of the IBIS-L (Image By Interferometric Survey) apparatus, purchased in 2008 by RU3, will be of vital importance. The IBIS-L apparatus takes advantage of the radar interferometry technique to measure the displacements of the area enlightened by the electromagnetic waves which are emitted at regular intervals during the duration of monitoring. Concerning the research project, the apparatus will be used to monitor the three landslides aforementioned (WP1).
Data belonging to the interferometric campaigns will be interpreted using a specific software; in particular, innovative techniques for reducing atmospheric errors in ground-based radar measurements will be identified. Corner reflectors will be positioned on the slopes to help identifying well-known point where atmospheric stations will be installed to record air pressure, humidity and temperature. By matching these parameters with those obtained by radar interferometry and traditional measurements, the evaluation of the atmospheric error will be optimized and effectively removed from the interferometric data.
In-situ measurements will be the essential base for numerical models; the purpose of this part of the research project is the improvement of the modelling techniques which allows one to reproduce likely scenarios for large rock landslides evolution. The activity will be done with reference to the initialization phase of the numerical model (mesh generation and geometry) and with reference to interpretation which leads to build reasonable scenarios. Commercial softwares at RU3 disposal will be used, both with continuum (FEM and FDM) and discontinuum (DEM) models. Attention will be particularly focused on innovative numerical technique such as particle-element model and the so called FEM/DEM (or FDEM, Finite Discrete Element Method) modelling.
As far as the input phase is concerned, the in-situ measurements (interferometric and traditional) will directly support the modelling activity, in particular in setting up the model geometry. Model generation will be aided by introducing automatic tools so that 3D-models will become more competitive. This goal will be pursued by using commercial softwares commonly used in geotechnical engineering, as well as by developing and testing open-source softwares.
As far as the analysis and the build up of scenarios are concerned, data from the monitoring system will allow for comparison with numerical results on a number of significant points on the slopes; an automatic comparing technique will be set for this purpose on a single georeferenced map with GIS applications. Monitoring data will also be essential for back analyses validation. Validated models will be used to produce run out scenarios and to estimate the critical levels (WP5). Numerical modelling will help the development of alerting procedures by defining threshold values for the different scenarios simulated, which will lead, in collaboration with RU1, to define pre-operating alerting procedures, also with reference to national regulations.
Antolini, Francesco; Barla, Marco; Giovanni, Gigli; Andrea, Giorgetti; Emanuele, Intrieri; Nicola, Casagli
INTERNATIONAL JOURNAL OF GEOMECHANICS
ASCE
pp.16 ISSN:1532-3641 DOI:10.1061/(ASCE)GM.1943-5622.0000646
Barla, Marco; Antolini, Francesco
In: 7th International conference on structural health monitoring of intelligent infrastructures
DISEG - Politecnico di Torino (ITALIA)
7th International conference on structural health monitoring of intelligent infrastructures (Torino) 1-3 July 2015
pp.10
C., Atzeni; Barla, Marco; M., Pieraccini; Antolini, Francesco
ROCK MECHANICS AND ROCK ENGINEERING
Springer
Vol.48 pp.12 (pp.235-246) ISSN:0723-2632 DOI:10.1007/s00603-014-0554-4
Barla, Giovanni Battista; Antolini, Francesco; Barla, Marco; Perino, Andrea
In: Failure predictions in geotechnics - Extended abstracts
OEGG (AUSTRIA)
Workshops 2013 - Failure predictions in geotechnics (Salzburg, Austria) 9/10/2013
pp.4 (pp.15-18)
Antolini, Francesco; Barla, Marco
In: Atti IARG Perugia 2013
Università degli Studi di Perugia (ITALIA)
IARG 2013 - Incontro Annuale dei Ricercatori di Geotecnica (Perugia) 16-18 settembre 2013
pp.6
Piovano, Giovanna; Antolini, Francesco; Barla, Marco; Barla, Giovanni Battista
In: DEM 6 6th International Conference on Discrete Element Methods and Related Techniques
Colorado School of Mines (STATI UNITI D'AMERICA)
6th International Conference on Discrete Element Method (Golden, USA) 5-6 Agosto 2013
pp.6 (pp.295-300)
Barla, Giovanni Battista; Antolini, Francesco; Barla, Marco
LANDSLIDES
Springer Verlag
Vol.10 pp.13 (pp.343-355) ISSN:1612-510X DOI:10.1007/s10346-013-0396-2
Barla, Marco; Piovano, Giovanna; G., Grasselli
INTERNATIONAL JOURNAL OF GEOMECHANICS
ASCE
Vol.12 pp.11 (pp.711-721) ISSN:1532-3641 DOI:10.1061/(ASCE)GM.1943-5622.0000204
Barla, Marco; Antolini, Francesco
NUOVI METODI DI INDAGINE, MONITORAGGIO E MODELLAZIONE DEGLI AMASSI ROCCIOSI
CELID (ITALIA)
pp.20 (pp.211-230) ISBN:9788876619854
Antolini, Francesco; Barla, Marco
In: IARG 2012
Grafiche Turato Edizioni (ITALIA)
IARG 2012 (Padova) 2-4 Luglio 2012
pp.6 ISBN:9788889524671
Barla, Giovanni Battista; Antolini, Francesco; Barla, Marco; Mensi, Elena; Piovano, Giovanna
In: Titolo volume non avvalorato
8th International Symposium on Field Measurements in GeoMechanics 2011 (Berlino) 12-16 Settembre 2011
pp.20
Piovano, Giovanna; Barla, Marco; Barla, Giovanni Battista
In: Computer methods for Geomechanics: frontiers and new applications
Centre for Infrastructure Engineering and Safety (AUSTRALIA)
13th International conference of Iacmag (Melbourne) 9-11 Maggio 2011
Vol.2 pp.6 (pp.1135-1140) ISBN:9780980824421
Barla, G; Antolini, Francesco; Barla, Marco; Mensi, E; Piovano, G.
ENGINEERING GEOLOGY
Vol.116 pp.18 (pp.218-235) ISSN:0013-7952 DOI:10.1016/j.enggeo.2010.09.004
Total: 13