ALERT Workshop 2013
30^st September – 2^nd October 2013, Aussois, France

DAY 1, MONDAY, SEPTEMBER 30
Geomechanics in slopes
Coordinators: C. di Prisco and L. Cascini

• From phenomenological to a geomechanical approach to landslide risk analysis and management (F. Cotecchia)
• Hydromechanical hillslope processes triggering landslides (R. Borja)
• Back-analysis of flowside events in underwater sandy slopes: a methodology based on stability criteria for fluid-saturated soils (G. Buscarnera, C. Mihalanche, A. Whittle)
• Interpretation of landslide mechanisms based on numerical modelling: two case histories (P. Lollino, F. Cotecchia)
• Multi-physics modelling of the initiation of shallow landslides based on Porous Media Mechanics (L. Sanavia, R. Ngaradoumbe Nanhornguè, B.A. Schrefler, G. Sorbino, L. Cascini)
• Landslide mechanisms and structural damage assessment: geotechnical perspectives (C. Vitone, F. Palmisano, F. Cotecchia, F. Santaloia)
• Multiscale approach for predicting slope instability (F. Nicot, F. Darve)
• Evaluation of displacement patterns during an excavation using different constitutive models (K. Nitzsche, I. Herle)
• A new approach for mudflow global simulation (N. Prime, F. Dufour, F. Darve)
• DEM modelling of the impact forces against fixed vertical obstacles due to fast-moving landslides (F. Calvetti, E. Vitolo, L.Cascini, S. Ferlisi, C. di Prisco, E. Vairaktaris)
• New advances for modelling debris flows and debris avalanches (S. Cuomo, L. Cascini, M. Pastor, G.C. Castorino, L. Piciullo)
• Discrete Element Method combined with a Lattice-Boltzmann Fluid model for the simulation of debris flowseady (A. Leonardi, F.K. Wittel, M. Mendoza, H.J. Herrmann)

DAY 2, Tuesday, OCTOBER 1
Contact problems in geomechanics
Coordinators: E. Papamichos and J. Sulem

• Experimental study of sand/steel interface with application to friction law (A. Corfdir, J. Schmittbuhl)
• Experimental and numerical study of nail-rock interaction by pullout tests (A.N. Berntsen E. Papamichos)
• Micro-indentation of an argillaceous limestone with a heterogeneous fabric (A.P.S. Selvadurai)
• Inconsistencies of contact force models and impossible elasticity of 3D granular materials (B. Chareyre)
• Role of interfaces in the analysis for aggregate size effects on mechanical strength of cement-based materials (C.F. Jin, Q.C. He, Q.Z. Zhu, J.F. Shao)

DAY 3, Wednesday, OCTOBER 2
Degradation in geomaterials
Coordinators: E. Bauer and A. Daouadji

• Particle crushing, scale effects and delayed behaviour of rockfill. A DEM investigation (E. Alonso)
• Numerical computations of chemo-mechanical coupling for CO2 geological storage (K. Wojtacki, J. Lewandowska, P. Gouze, A. Lipkowski)
• Chemo-mechanical weathering of calcarenites: an experimental, theoretical and numerical study (M.O. Cianta, R. Castellanza, C. di Prisco, T. Hueckel, J. Fernandez)
• The solid hardness – a key parameter for modelling the time dependent process of degradation of the grain stiffness of weathered and moisture sensitive coarse-grained soils and rockfills (E. Bauer)
• Grain crushing in polydisperse granular media: focus on the cushionning effect (C. Voivret)
• Soil-pile interface constitutive model for granular materials considering grain breakage in finite deformations (L. Berenguer-Todo-Bom, A. Modaressi)
• Cosserat continuum approach to granular media & Plane couette shear (W. Huang)
• Failure of brittle materials: discrete element and finite element approaches (G. Koval, B.D. Le, C. Chazallon, A. Daouadji)
• Pressure dependent hyperelasticity coupled with damage: effect of damage modelling assumptions on elastic moduli degradation and plastic behaviour (S. Le Pense, A. Pouya, B. Gatmiri)
• Coupling between damage and swelling in the callovo-oxfordian claystone (P. Delage, M. Mohajerani, H. Menaceur, N. Conil)
• Failure of quasi-brittle materials modelled at the mesoscale: experimental and numerical analysis of the correlation during the damage process (V. Lefort, G. Pijaudier-Cabot, D. Grégoire, P. Grassi, L. Rojas Solanol)
• Modelling rock permeability and retention properties during crack opening and closure (J.-M. Pereira, C. Arson)
• Cohesive granular materials with non convex particles: application to O2 powder compaction (B. Saint-Cyr, F. Radjai, J.Y. Delenne, P. Sornay, E. Azema)
• Specific surface energy in crushable granular material (C. Dano, C. Ovalle, P.-Y. Hicher)
• Characterization of the strain localization in a porous rock in plane strain condition using true-triaxial apparatus (P. Lanata, P. Bésuelle)
• Identification of enriched constitutive models for geomaterials in teh presence of strain localization (K. El Moustapha, P. Bésuelle, Y. Sieffert, R. Chambon)
• Sensitivity analysis for constitutive parameters of S-clay1S model for soft clays (A.A. Lavasan, S. Miro, T. Schanz)