Agence Nationale de la Recherche (ANR)

SLAMS :

“Séchilienne Land movement : Multidisciplinary Studies from Hazard assessment to associated risk and consequences” (2010-2012)

Collective risks involve several scientific disciplines and several actors whose articulation is complex because of the diversity of approaches and how to manage uncertainties. The ambition and the novelty of this project were to provide a strategy adapted to this context with an interdisciplinary approach. In addition, the project also aimed at breaking down the barriers that block understanding of huge landslides, characterized by high complexity and heterogeneities in both space and time, and influence the risk management and political governance. This multidisciplinary approach is based on multi-parameter observation, in-situ and laboratory measurements and thermo-hydro- mechanical numerical modeling. This project required specific developments in terms of acquisition, monitoring, signal processing and / or numerical modeling, which has been an important challenge in the context of this iconic gravitational instability that has posed issues for 30 years for risk management. This project is characterized by a strong presence of social sciences studying the evolution of supply risk management and policy making.

Final Report

Rapport scientifique final (2014) (pdf)

Deliverables (in French)

Communication

Scientific publications and communications

PUBLICATIONS MULTI-PARTENAIRES

Cappa, F., Y. Gugliemi, S. Viseur, and S. Garambois, Deep fluids can facilitate rupture of slow- moving giant landslides as a result of stress transfer and frictional weakening, Geophysical Research Letters, VOL. 41, 1–6, doi:10.1002/2013GL058566, 201.

Leroux O., Jongmans D., Kasperski J., SchwartzS., Potherat P, Lebrouc V., Lagabrielle R and Meric O., 2011, Deep geophysical investigation of the large Séchilienne landslide (Western Alps, France) and calibration with geological data, Engineering Geology, 120, 18-31.

PUBLICATIONS MONO-PARTENAIRE

Decrop G., 2014, L’expertise en question dans la gestion des risques naturels, le cas des Ruines de Séchilienne, Nature Sciences Sociétés, accepté.

Derode, B., F. Cappa, Y. Guglielmi, and J. Rutqvist (2013), Coupled seismo-hydromechanical monitoring of inelastic effects on injection-induced fracture permeability, Int. J. Rock Mech. Min. Sci., 61, 266-274, doi:10.1016/j.ijrmms.2013.03.008.

Helmstetter, A. and S. Garambois, 2010, Seismic monitoring of Séchilienne Rockslide (French Alps): analysis of seismic signals and their correlation with rainfalls, J. Geophys. Res., 115, F03016, doi:10.1029/2009JF001532.

Kasperski J., Delacourt C., Allemand P., Pothérat P., Jaud M., Varrel E. (2010) – Application of a Terrestrial Laser Scanner (TLS) to the Study of the Séchilienne Landslide (Isère, France), Remote Sens. 2010, 2, 2785-2802; doi:10.3390/rs122785.

Lacroix, P. and A. Helmstetter (2011), Localisation of seismic signals associated with micro- earthquakes and rockfalls on the Séchilienne landslide, French Alps, Bull. Seism. Soc. Am. 101(1), 341-353, doi: 10.1785/0120100110.

Lebrouc V., S. Schwartz, L. Baillet, D. Jongmans, J.F. Gamond, 2013, Modeling permafrost extension in a rock slope since the Last Glacial Maximum: Application to the large Séchilienne landslide (French Alps), Geomorphology, 198, 189-2000.

Tatard L. & Grasso J.-R., 2012, Controls of earthquake faulting style on near field landslide triggering: the role of coseismic slip amplitude and orientation, Journal of Geophysical Research Solid Earth, VOL. 118, 2953–2964, doi:10.1002/jgrb.50215, 2013.

Vallet, A., C. Bertrand, et J. Mudry, (2013), Effective rainfall: a significant parameter to improve understanding of deep-seated rainfall triggering landslide – a simple computation temperature based method applied to Séchilienne unstable slope (French Alps), Hydrology and Earth System Sciences Discussions 10 (7) (juillet 10): 8945‑8991. doi:10.5194/hessd-10-8945-2013.

PUBLICATIONS EN FINALISATION

Garambois S, Voisin C., Massey C. & P. Guéguen, Assessment of site effects on landslides, a comparitive study, 2014, to be submitted to Natural Hazard and Earth Systems.

Schmidt A., Grasso J.R. & A. Helmstetter, 2014, Rockfalls predictabilty in the Séchilienne corridor (France), in preparation, to be submitted to Natural Hazard and Earth Systems.

Vallet, A., C. Bertrand, D. Varron, & J. Mudry, Hydrogeological threshold using effective rainfall and support vector machine (SVM) applied to a deep seated unstable slope (Séchilienne, French Alps), in preparation, planned to submit January 2014.

Vallet, A., J.-B. Charlier, C. Bertrand, & J. Mudry, Seasonal and long term analysis of precipitation- displacement relationships on a deep seated unstable slope (Séchilienne, French Alps), in preparation, planned to submit February 2014.

COMMUNICATIONS PLURI-PARTENAIRES

Chanut, M.-A. A.Vallet, L.Dubois, J.-P. Duranthon, Mouvement de versant de Séchilienne : relations entre déplacements de surface et précipitations – analyse statistique, Journées Aléas Gravitaires, 17-18 Septembre 2013, Grenoble.

Grasso, J.-R. , S. Garambois, D; Jongmans, A. Helmstetter, T. Lebourg, J.-P. Malet, W. Berolo, R. Béthoux, L. Daras, and P. Ulrich, The OMIV Observatory on landslides – Observing with Multi- parameters the Instability of Versants, EGU Vienna, 2-7 May 2010.

Kasperski, J., Jongmans, D., Lagabrielle, R., Pothérat, P., Méric, O., 2010. Apport des reconnaissances profondes par méthodes géophysiques sur le mouvement de versant de Séchilienne (Isère). Actes du Rock Slope Stability symposium, Paris, 24-25 novembre 2010.

Lebrouc V., S.Schwartz, L. Baillet, D. Jongmans, J.F Gamond, J. Carcaillet, O. Le Roux, D.Bourlès, R.Braucher, 2011, Dynamic characterisation of gravitational movements affecting the southern edge of Belledonne massif(French Alps) : contribution of CRE dating and thermal modeling. , EGU, Vienne (Austria).

Lebrouc V., S.Schwartz, L. Baillet, D. Jongmans, J.F Gamond, J. Carcaillet, O. Le Roux, D.Bourlès, R.Braucher, CRE dating on the scarps of large landslides affecting the Belledonne massif (French Alps), EGU, Vienne (Austria), 2012.

Lebrouc V., S.Schwartz, L. Baillet, D. Jongmans, J.F Gamond, Julien Carcaillet, O. Le Roux, D.Bourles, R.Braucher, 2011, Caractérisation dynamique des mouvements gravitaires affectant la bordure sud du massif de Belledonne : apport des datations cosmogéniques 10Be et de la modèlisation thermique, Journées Aléa Gravitaire, Strasbourg.

Vallet, A., J.-B. Charlier, M.-A. Chanut, C. Bertrand, & J. Mudry (2013), Impact of rainfall and snowmelt on unstable slope destabilisation using wavelet analysis (Séchilienne, French Alps), Poster présenté à European Geosciences Union: general assembly, avril 7, Vienna, Austria.

Vallet, A., J.-B. Charlier, M.-A. Chanut, L. Dubois, & J. Mudry (2013), Analyse saisonnière et long terme des relations précipitation-déplacement d’un mouvement de terrain de grande profondeur (Séchilienne, Alpes françaises), In : Journées Aléa Gravitaire 2013. Grenoble, France.

COMMUNICATIONS MONO-PARTENAIRE

Baudement, C., C. Bertrand, Y. Guglielmi, S. Viseur, A. Vallet, et F. Cappa (2013a), Quantification de la dégradation mécanique et chimique d’un versant instable : approche géologique, hydromécanique et hydrochimique », In : Journées Aléa Gravitaire 2013. Grenoble, France.

Baudement, C., C. Bertrand, Y. Guglielmi, S. Viseur, A. Vallet, et F. Cappa (2013b), Quantification de la dégradation mécanique et chimique d’un versant instable : approche géologique, hydromécanique et hydrochimique. Oral présenté à Journée OSU THETA, octobre 18, Frasnes, France.

Bertrand, C., V. Marc, A. Vallet, J. Mudry, et A.-D. Schmitt (2013), Apport de l’hydrogéochimie pour la caractérisation des mouvements gravitaires. In : Journées Aléa Gravitaire 2013. Grenoble, France.

Bertrand, C., A. Vallet, & J. Mudry (2013), Approche hydrochimique de la dégradation mécanique du versant instable de Séchilienne. In : Journées Aléa Gravitaire 2013. Grenoble, France.

Bigarré P., Verdel T., Klein E., Gueniffey Y. Cloud monitoring: an innovative approach for the prevention of landslide risks, Proceedings of the Second World Landslide Forum – 3-7 October 2011, Rome.

Chanut M.-A., Barthelet V. & Kasperski J. (2011) Contribution de l’imagerie de face pour l’analyse des mouvements de terrain : application au versant de Séchilienne. Journées aléa gravitaire, 07-08 septembre 2011, Strasbourg, France.

Chanut M.-A., Barthelet V. & Kasperski J. (2012) Corrélation d’images : méthode originale de tri automatique des photographies. Journées Nationales de Géotechnique et Géologie de l’Ingénieur JNGG2012, 04-06 juillet 2012, Bordeaux, France.

Chanut M.-A., Kasperski J., Bièvre G. & Duranthon J.-P. (2012) Analyse cinématique actuelle des ruines de Séchilienne. Journées Nationales de Géotechnique et Géologie de l’Ingénieur JNGG2012, 04-06 juillet 2012, Bordeaux, France.

Derode B., Cappa F., Guglielmi Y., Gaffet S., and Monfret T., 2011. Seismicity and hydromechanical behavior of a fractured porous rock under a high-pressure fluid injection, EDP Sciences, doi: 10.1051/idust/201101003.

Derode B., Cappa F., and Guglielmi Y., 2012. Quantifying the effect of fluids and mechanical weakening of fractures and the implications for the rupture of large landslides. 74th EAGE Conference

Derode B., Cappa F., and Guglielmi Y., 2012, Different seismic signatures of fractures slip and their correlations with fluid pressures in in-situ rupture experiments, EGU2012-4457.

Derode B., Cappa F., and Guglielmi Y., 2012. Seismicity triggered by stress transfer from a fluid injection-induced fracture activation, EGU2012-4473

Derode B., Cappa F., Guglielmi Y., Gaffet S. and Monfret T., 2011. Seismicity and hydromechanical behavior of a fractured porous rock under a high pressure fluid injection. Geophysical Research Abstracts, vol. 13, EGU2011-6448-1, EGU General Assembly 2011, Vienna. (Poster).

Derode B., Cappa F., Guglielmi Y., Gaffer S., and T. Monfret, 2010, Poroelastic waves distortion related to the damage of an unsaturated fractured-porous carbonate rock by high pressure fluid injections, conferences IDUST, June 9-11, Apt, Provence, France. (Oral)

Dünner C., Klein E., Charmoille A., Bigarré P., 2010, Stratégie de surveillance multi- paramètres appliquée aux versants instables : exemple des Ruines de Séchilienne (Isère, 38), Rock Slope Stability Symposium, November 24-25, 2010, Paris.

Dünner C., Klein E., Biggaré P., 2011, Surveillance multi-paramètres appliquée aux versants instables : exemple des Ruines de Séchilienne (Isère, 38). Journées “aléa gravitaire”, jag 2011 – 7 & 8 Septembre 2011, Strasbourg, France, p. 91-97.

Garambois S., Jongmans D. & A. Helmstetter, 2012, Seismic characterization of landslides and the emergence of seismic monitoring, EAGE, 74th Cong of EAGE, Copenhague, juin 2012.

Grasso J.-R. Tatard L., Gorum T. & Van Westen C., 2011, Static versus dynamics triggering of Earthquake-induced Landslides: implication for prediction of triggered landslide locations, International Symposium on Earthquake Induced Landslides and Disaster Mitigation at the 3rd anniversary of the Wenchuan Earthquake, May 12-15, 2011, Chengdu, China.

Grasso J.-R., L. Tatard, T. Gorum, and Cees Van Westen, 2011, Seismically induced landslides and seismic landslide hazard analysis – Are earthquake-induced landslide driven by the permanent deformation of slope?, WLF2-2011- world landslide forum, Roma, Italia, October 2011, L25.

Grasso J.-R., 2011, Seismically induced landslides and seismic landslide hazard analysis – Early response to earthquake landslide interactions in mountain area: fast identification of earthquake- induced landslide prone area using early aftershocks, WLF2-2011- world landslide forum, Roma, Italia, October 2011, L25.

Grasso J.-R., Early response to earthquake landslide interactions in mountain area: Fast identification of earthquake-induced landslide prone area using earthquake magnitude, faulting style and early aftershocks, Triggered landslide workshop, ITC, Twente University, Netherlands, 4-5 July 2011.

Helmstetter, A., S. Garambois, J. Kasperski, J-P Duranthon, and P. Pothérat, Seismic monitoring of the Séchilienne Rockslide (French Alps): analysis of seismic signals and their correlation with rainfalls, EGU Vienna, 2-7 May 2010.

Helmstetter A. and S. Garambois, Seismic monitoring of Séchilienne rockslide, ESC, Sept 2010, Poster Presentation, Montpellier.

Helmstetter, A., S. Garambois, and P. Lacroix, Seismic monitoring of Séchilienne Rockslide (French Alps): micro-seismicity, rockfalls, and triggering by rainfall, Congress on physico chemical processes in seismic faults, Padova, Italy, Nov 2010 (conf. Invitée)

Helmstetter, A. Ecoute sismique du mouvement de terrain de Séchilienne. Séminaire INERIS Nancy, 16 Février 2011.

Helmstetter, A. et S. Garambois, Ecoute sismique du mouvement de terrain de Séchilienne. Soumis, Journées “aléa gravitaire”, jag 2011 – 7 & 8 Septembre 2011, Strasbourg, France.

Helmstetter, A., Landslides deformation : scaling and triggering mechanisms, workshop “Materials Deformation : Fluctuations, Scaling, Predictability”, Les Houches, 23-26 Janvier 2012 (conf invitée).

Helmstetter, A., Landslides deformation : scaling and triggering mechanisms, workshop “Materials Deformation : Fluctuations, Scaling, Predictability”, Les Houches, 23-26 Janvier 2012 (pdf) (conf invitée)

Helmstetter, A., Ecoute sismique des mouvements gravitaires, Journées Aléas Gravitaires, 17-18 Septembre 2013, Grenoble. (Résumé)

Kasperski, J., Pothérat, P., Duranthon, J.-P., 2010. Le mouvement de versant de Séchilienne : point sur l’activité du phénomène. Actes du Rock Slope Stability symposium, Paris, 24-25 novembre 2010.

Kasperski, J., Pothérat, P., Duranthon, J.-P., 2010, Le mouvement de versant de Séchilienne : apport de nouvelles techniques à la connaissance cinématique, JNGG, Grenoble, 7-9 Juillet 2010.

Kasperski J. & E. Varrel, 2010, Characterization of the active zone of the Séchilienne landslide using terrestrial laser scanning, 11th International Association for Engineering Geology congress, Auckland, NZ, septembre 2010.

Klein E., Occhiena C., Pirulli M., Dünner C., Bigarré P., Scavia C., Analysis of potential rock mass movement through microseismic monitoring, Proceedings of the Second World Landslide Forum – 3-7 October 2011, Rome.

Lacroix, P. and A. Helmstetter, Location of seismic signals associated with micro-earthquakes and rockfalls on the Séchilienne landslide, French Alps, ESC, Sept 2010, Poster Presentation, Montpellier.

Maiolino, S., 2013. A general criterion for geomechanics: extension to jointed rocks masses. ASEM2013, Jeju, Korea.

Pothérat P. & Duranthon, J.-P., 2010, The monitoring of unstable rock masses applied to risk management, 11th International Association for Engineering Geology congress, Auckland, NZ, septembre 2010.

Schwartz S., D. Jongmans, V. Lebrouc, L. Baillet, J.F. Gamond, Modélisation thermique de l’extension du pergélisol depuis le dernier maximum glaciaire, application au versant de Séchilienne (Alpes Occidentales), Journées Aléa Gravitaire, septembre 2013, Grenoble.

Vallet, Aurélien, Catherine Bertrand, Davit Varron, et Jacques Mudry (2014), Hydrogeological threshold using effective rainfall and support vector machine (SVM) applied to a deep seated unstable slope (Séchilienne, French Alps), In : IAEG XII CONGRESS: Engineering Geology for Society and Territory. Turino, Italia.