**Computational study of the performance of a genetic algorithms based software** |

*R.N. Azeiteiro, P.A.L.F Coelho, D. Taborda, A. Pedro & D. Antunes* |

**Anisotropic visco-hypoplasticity** |

*A. Niemunis, C. E. Grandas Tavera & L. F. Prada Sarmiento* |

**A simplified second gradient model for geomaterials** |

*R. Fernandes, C. Chavant, R. Chambon* |

**Numerical determination of the minimum size of RVE for random composite materials: two-point probability approach** |

*A. Rozanski, D. Lydzba & J. F. Shao* |

**A time-dependent multi-scale damage model for rocks based on sub-critical growth of micro-cracks** |

*B. Francois, C. Dascalu & B. Operchalska* |

**A constitutive model for the behaviour of shotcrete** |

*R. Schutz, D. M. Potts & L. Zdravkovic* |

**On mechanical behaviour of inherently anisotropic sand formations** |

*S. Pietruszczak, A. Azami & P. Guo* |

**A generalised fully coupled mechanical-water retention model for unsaturated soils** |

*M. Lloret, M. Sanchez, M. Karstunen & S. Wheeler* |

**A model for destructured and water sensitive chalk** |

*E. Papamichos, R. Flatebo, & J. Stenebraten* |

**Hyperelastic and hyperviscoelastic constitutive modelling of road materials** |

*C. Rabaiotti, M. Caprez , C. Ozan & A. Puzrin* |

**Implications of thermal sensitivity of the static internal friction angle** |

*T. Hueckel, L. Laloui & B. Francois* |

**Mechanical modelling of eroded granular materials** |

*P. Y. Hicher & C. S. Chang* |

**A constitutive model for structured anisotropic soils** |

*M. P. Cordao-Neto, M. Sanchez & M. Karstunen* |

**On the conditions at failure in schistose rocks** |

*Y.K. Lee, S. Pietruszczak & S. Jeon* |

**A viscoplastic model including damage for argillaceous rocks** |

*M. Souley, K. Su, G. Armand & M. Ghoreychi* |

**A unified framework for failure in geomaterials?** |

*F. Nicot & F. Darve* |

**Analysis of failure in geostructures via the second order work** |

*R. Wan & M. Pinheiro* |

**Diffuse failure: 3D phenomenological analysis and DEM simulations** |

*F. Darve, F. Prunier, L. Sibille & F. Nicot* |

**Discrete element modelling of damage mechanisms and acoustic emission in rock under triaxial compression** |

*H. D. V. Khoa, E. Aker, F. Cuisiat & L. Andresen* |

**Effect of grain crushing on shear localization using micro-polar hypoplasticity** |

*J. Tejchman & I. Einav* |

**Material stability analysis based on the local and global elasto-plastic tangent operators** |

*F. Prunier, F. Laouafa & F. Darve* |

**Modelling the onset of instability in oedometric tests on unsaturated bonded soils** |

*G. Buscarnera & R. Nova* |

**Strain localisation in sand under triaxial loading: characterisation by x-ray micro tomography and 3D digital image correlation,** |

*S. A. Hall, N. Lenoir, G. Viggiani, J. Desrues & P. Besuelle* |

**Application of ALE-formulation to investigations of evolution of shear zones during granular flow in silos** |

*M. Wojcik & J. Tejchman* |

**Effects of fines on compressibility and static liquefaction of granular materials** |

*P. V. Lade, J. A. Yamamuro & C. D. Liggio* |

**Calibration of an advanced soil constitutive model for use in probabilistic numerical analysis** |

*R. Suchomel & D. Masin* |

**Soil parameter identification for the design of spread footings** |

*A. Papon, Y. Riou,, J. Heyman, Ch. Dano & P-Y. Hicher* |

**Effect of grain shape on the behaviour of granular materials in biaxial compression** |

*M. Chaze* |

**Numerical simulations of the behavior of granular bodies using DEM** |

*L. Widulinski, J. Kozicki & J. Tejchman* |

**Numerical modelling of laboratory tests on desiccation cracking** |

*A. L. Amarasiri, J. K. Kodikara & S. Costa* |

**The use of meshless methods in geotechnics** |

*C. Augarde & C. Heaney* |

**Stabilized finite elements in geomechanical applications** |

*S. Commend, Th. Zimmermann & A. Truty* |

**Extended finite element formulation for frictional crack with finite deformation** |

*R. I. Borja & F. Liu* |

**A hypoplastic macroelement for shallow foundations on sands** |

*D. Salciarini & C. Tamagnini* |

**A micro-macro (DEM-FEM) model of the behaviour of granular solids** |

*M. Nitka, G. Bilbie, G. Combe, C. Dascalu & J. Desrues* |

**Efficient multilevel preconditioners for large size geomechanical simulations** |

*C. Janna, M. Ferronato & G. Gambolati* |

**Seismic design of pile-reinforced foundations using a multiphase approach** |

*Q. Thai Son, G. Hassen & P. de Buhan* |

**Limit analysis, convex optimization and decomposition: new bounds to the height limit of a Tresca vertical slope** |

*Z. Kammoun, F. Pastor, J. Pastor, H. Smaoui & E. Loute* |

**Stability of anchored walls embedded in cohesive soils by variational method** |

*O. Pula, W.Pula & M. Oslawska* |

**On the development of a THM model to include higher temperature effects** |

*H. R. Thomas, S. C. Seetharam, S. Siddiqua & P. J. Vardon* |

**Boundary heating of a fluid-saturated geomaterial** |

*A. P. S. Selvadurai & A. Suvorov* |

**Behaviour of an engineered clay barrier involved in a prospective nuclear waste isolation system** |

*B. Francois & L. Laloui* |

**Interactions between unsaturated soil phases involving linear momentum** |

*F. Molenkamp* |

**A coupled Material Point/Finite Difference scheme for model-based simulation of fluid-saturated porous media** |

*Y. Higo, Y. Goto, S. Kimoto, F. Oka & Z.Chen* |

**A two-scale numerical approach for hydro-mechanical damage** |

*J. Frey, C. Dascalu & R. Chambon* |

**Mechanics of an embedded caprock layer during pressurization of a CO2 storage reservoir** |

*A. P. S. Selvadurai* |

**Boundary integral equations of unsaturated poroelastic media under heating in frequency domain** |

*P. Maghoul, B. Gatmiri & D. Duhamel* |

**Fully coupled hydro-mechanical analysis of unsaturated soils** |

*V. Galavi, R.B.J. Brinkgreve, P.G. Bonnier & N. A. Gonzalez* |

**Hydro-mechanical coupled model for hydration swelling rocks** |

*X. Chen & M. A. Hicks* |

**Hydro-mechanical modeling of damage due to underground excavation in hardened clay** |

*S. Levasseur, F. Collin, B. Frieg & R. Charlier* |

**Numerical modeling of gas hydrate formation in the ground** |

*S. Kimoto, Y. Miki & F. Oka* |

**Numerical modelling of interfacial soil erosion** |

*D. Lachouette, S. Bonelli, F. Golay & P. Seppecher* |

**Numerical modeling of swelling and the osmotic consolidation of bentonite** |

*F. Oka, H. Feng, S. Kimoto , A. J. Tinet & Y. Higo* |

**An investigation of the re-saturation characteristics of the prototype repository** |

*P. J. Vardon, H. R. Thomas & P. J. Cleall* |

**Parametric study on the performance of a THM damage model for unsaturated porous media** |

*C. Arson & B. Gatmiri* |

**Reactive transport in granular media: modeling the erosion and filtration** |

*N. Sayouri, X. Liu, T. Khalil & B. Muresan* |

**Stochastic finite element modeling of contaminant transport** |

*M. M. Nezhad, A. A. Javadi & M. Rezania* |

**Three-dimensional elasto-plastic thermo-mechanical analysis of underground nuclear repository** |

*S. K. Patel & K. G. Sharma* |

**Understanding the thermo-mechanical response of heat exchanger piles** |

*C. Silvani, M. Nuth, L. Laloui & H. Peron* |

**The weathering of the foundation of the Tholos of Asklepios at Epidaurus: experiments and modelling** |

*E. Gerolymatou, R. Castellanza, R. Nova & I. Vardoulakis* |

**3D coupled geomechanical modeling in reservoir management** |

*N. Koutsabeloulis & X. Zhang* |

**Prediction of the spacing and patterns of drying cracks in soils** |

*H. Peron, L. Laloui, L.B. Hu & T. Hueckel* |

**Numerical modelling of desiccation processes in clayey soils** |

*H. U. Levatti, P. C. Prat & A. Ledesma* |

**New developments in the simulation of problems in underground construction** |

*G. Beer, Ch. Duenser, K. Riederer, R. Terkovics & K. Thoeni* |

**Numerical analysis of a shallow NATM tunnel with advancing face support by horizontal glass fibre anchors** |

*X.T. Wang, W. Wu & J. Bauer* |

**3D back analysis studies of Termino de Odivelas tunnel in Lisbon** |

*G. D. Vieira & J. A. Sousa* |

**The effect of advance-drainage on the short-term behaviour of squeezing rocks in tunneling** |

*G. Anagnostou* |

**Finite element analysis of the Meuse Haute-Marne underground research laboratory** |

*F. Laouafa, G. Armand, J.B. Kazmierczak & T. Maison* |

**Limit analysis of anisotropic soils** |

*R. L. Michalowski* |

**Limit analysis of bearing capacity of eccentrically loaded strip footing on clay with tension cut-off interface conditions** |

*A. Lyamin, K. Krabbenhoft & S. W. Sloan* |

**Upper bound solutions for bearing capacity of nonhomogeneous and anisotropic clay foundations** |

*M. Huang, Y. Liu, H. Qin & W. Wang* |

**A FE procedure for calculation of displacements and capacity of foundations subjected to cyclic loading** |

*H. P. Jostad & L. Andresen* |

**Lumped-parameter model of a bucket foundation** |

*L. Andersen , L. B. Ibsen & M. A. Liingaard* |

**Numerical study of simplified piled raft foundations employing an embedded pile formulation** |

*F. Tschuchnigg & H. F. Schweiger* |

**Numerical simulation of pile installation in sand** |

*J. Dijkstra, K. E. Anaraki, W. Broere & F. van Tol* |

**Behavior of piles subjected to inclined loads** |

*M. Achmus, K. Abdel-Rahman & K. Thieken* |

**Numerical analysis of expansion anchors** |

*M. M. El Sharnouby,& M.H. El Naggar* |

**Evaluation of load-carrying capacity of suction anchors in clay by 3D finite element analysis** |

*L. Edgers, L. Andresen & H. P. Jostad* |

**Limit equilibrium assessment of drystone retaining structures** |

*C. Mundell & P. M. McCombie* |

**Geomechanical modelling of a natural slope affected by multiple slip surface failure mechanism** |

*A. Ferrari, L. Laloui & C. Bonnard* |

**Material-Point-Method analysis of collapsing slopes** |

*S. M. Andersen & L. Andersen* |

**The behaviour of stone column supported embankment constructed on soft soil** |

*D. Kamrat-Pietraszewska &, M. Karstunen* |

**Load carrying capacity of masonry bridges: numerical evaluation of the influence of fill and spandrels** |

*A. Cavicchi1 & L. Gambarotta* |

**Seismic analysis of brick masonry structures of the Paugan powerhouse** |

*S. Pietruszczak & V. Gocevski* |

**FE-modelling of strain localization in concrete under mixed mode conditions using different approaches** |

*J. Bobinski & J. Tejchman* |

**The effect of soil-structure interaction on a reinforced concrete bridge** |

*S. Grange, L. Botrugno, P. Kotronis & C. Tamagnini* |

**Application of different coupled elasto-plastic-damage models with non-local softening to concrete cyclic behaviour** |

*I. Marzec & J. Tejchman* |

**Critical failure surface location using simple genetic algorithm and multiple wedge slope stability** |

*P. McCombie* |

**Extraction of dynamic pore water pressure generation behavior via inverse analysis in seismic site response modeling** |

*D. R. Groholski & Y. M. A. Hashash* |

**Design of optimal flood protection embankments: combining different forms of Artificial Intelligence** |

*R. van der Meij* |

**Genetic programming for predicting axial capacity of driven piles** |

*I. Alkroosh, M. Shahin & H. Nikraz* |

**Neural network based hazard assessment for tunnel collapse** |

*H. S. Shin, Y. C. Kwon, Y. S. Jung & G. J. Bae* |

**Application of cyclic nonlinear elastic models to site response analysis** |

*D. Taborda, S. Kontoe, L. Zdravkovic & D. M. Potts* |

**Asymptotics in soil-wheel interaction** |

*J. P. Hambleton & A. Drescher* |

**Numerical modelling of wave propagation tests for the detection of underground heterogeneities** |

*P. Alfonsi, E. Bourgeois, L. Lenti, M. Froumentin & E. Evain* |

**Statistical design of rockfall protective structures using a stochastic trajectory analysis model** |

*F. Bourrier, F. Nicot & F. Darve* |

**Vertical stresses due to linearly distributed pressures over polygonal domains** |

*M.G. DUrso & F. Marmo* |

**Development of hybrid simulation system for geotechnical engineering problems** |

*Y. C. Kwon, H. S. Shin & M. Kazama* |

**Book of Abstract**
ABSTRACTS OF PAPERS PRESENTED AT THE FIRST INTERNATIONAL SYMPOSIUM ON
COMPUTATIONAL GEOMECHANICS (COMGEO I),
Juan lesPins,
France, 29 Apr il 1
May, 2009 |