Numerical Methods in Geotechnical Engineering IX Proceedings of the 9th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE 2018), June 25-27, 2018, Porto, Portugal

Numerical Methods in Geotechnical Engineering IX contains 204 technical and scientific papers presented at the 9th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE2018, Porto, Portugal, 25—27 June 2018). The papers cover a wide range of topics in the field of computational geotechnics, providing an overview of recent developments on scientific achievements, innovations and engineering applications related to or employing numerical methods. They deal with subjects from emerging research to engineering practice, and are grouped under the following themes: Constitutive modelling and numerical implementation Finite element, discrete element and other numerical methods. Coupling of diverse methods Reliability and probability analysis Large deformation – large strain analysis Artificial intelligence and neural networks Ground flow, thermal and coupled analysis Earthquake engineering, soil dynamics and soil-structure interactions Rock mechanics Application of numerical methods in the context of the Eurocodes Shallow and deep foundations Slopes and cuts Supported excavations and retaining walls Embankments and dams Tunnels and caverns (and pipelines) Ground improvement and reinforcement Offshore geotechnical engineering Propagation of vibrations Following the objectives of previous eight thematic conferences, (1986 Stuttgart, Germany; 1990 Santander, Spain; 1994 Manchester, United Kingdom; 1998 Udine, Italy; 2002 Paris, France; 2006 Graz, Austria; 2010 Trondheim, Norway; 2014 Delft, The Netherlands), Numerical Methods in Geotechnical Engineering IX updates the state-of-the-art regarding the application of numerical methods in geotechnics, both in a scientific perspective and in what concerns its application for solving practical boundary value problems. The book will be much of interest to engineers, academics and professionals involved or interested in Geotechnical Engineering.

VOLUME 1 Keynote lectures Numerical modelling of coupled thermo-hydro-mechanical problems: Challenges and pitfalls D.M. Potts, W. Cui, K.A. Gawecka, D.M.G. Taborda & L. Zdravkovic Rock failure analysis with discrete elements J.V. Lemos Constitutive modelling and numerical implementation The dilatancy conditions at critical state and its implications on constitutive modelling E.J. Fern & K. Soga An innovative FE approach using soil hyperbolic model for predicting the response of monopiles supporting OWTs in sands Dj. Amar Bouzid Numerical modeling of the creep behavior of a stabilized soft soil P.J. Venda Oliveira, A.A.S. Correia & L.J.L. Lemos On the use of NURBS plasticity for geomaterials W.M. Coombs & Y. Ghaffari Motlagh Numerical simulation of the behavior of collapsible loess R. Schiava The influence of non-coaxial plasticity in numerical modelling of soil-pipe interaction H.E. Mallikarachchi & K. Soga Hypoplastic model and inverse analysis for simulation of triaxial tests S. Cuomo, P. Ghasemi, M. Calvello & V. Hosseinezhad Application of a generalized continuous Mohr–Coulomb criterion G. Grimstad, J.A. Ronningen & S. Nordal Enhanced plasticity modelling of high-cyclic ratcheting and pore pressure accumulation in sands H.Y. Liu, F. Zygounas, A. Diambra & F. Pisano A generalized plasticity model adapted for shearing interface problems B. Kullolli, H.H. Stutz, P. Cuellar, M. Baesler & F. Rackwitz Comparative investigation of constitutive models for shotcrete based on numerical simulations of deep tunnel advance M. Neuner, M. Schreter & G. Hofstetter On modelling of anisotropic undrained strength for non-horizontal terrain S. Nordal, G. Grimstad, T. Jordbakke, K. Rabstad & M. Isachsen Elastic and plastic anisotropy in soft clays: A constitutive model J. Castro, J. Justo & N. Sivasithamparam Fe-analysis of anchor pull out tests using advanced constitutive models C. Fabris, H.F. Schweiger & F. Tschuchnigg On the convexity of yield and potential surfaces in rotational hardening critical state models J.A. Ronningen, G. Grimstad & S. Nordal On constitutive modelling of anisotropic viscous and non-viscous soft soils M. Tafili & Th. Triantafyllidis Measurement and analysis of ground contacts during rockfall events W. Gerber & A. Caviezel The role of evolutionary algorithms in soil constitutive models C. Pereira & J.R. Maranha Estimation and calibration of input parameters for Lake Texcoco Clays, Mexico City N. O’Riordan, S. Kumar, F. Ciruela-Ochoa & A. Canavate-Grimal A comparison of the series and parallel Masing-Iwan model in 2D W.J.A.P. Beuckelaers, G.T. Houlsby & H.J. Burd Effective stress based model for natural soft clays incorporating restructuration J. Bjerre, J.A. Ronningen, G. Grimstad & S. Nordal Interpretation of the cyclic behaviour of a saturated dense sand within an elasto-plastic framework B.M. Dahl, M.S. Loyland & H.P. Jostad Numerical implementation of hardening soil model L.J. Cocco & M.E. Ruiz A hypoplastic model for soft clays incorporating strength anisotropy J. Jerman & D. Mašin A modified bounding surface plasticity model for sand A. Amorosi, F. Rollo & D. Boldini Evaluating the effects of noise on full field displacement data used for the identification of soil stress-strain response J.A. Charles, C.C. Smith & J.A. Black Analysis of the bearing capacity of strip footing on crushable soil V.P. Quang Nguyen, M. Kikumoto & K. Nakamura Numerical simulations of the dynamic soil behaviour in true triaxial conditions C. Ferreira, A.R. Silva & J. Rio The role of soil fabric anisotropy for reaching and maintaining critical state A.I. Theocharis, E. Vairaktaris, Y.F. Dafalias & A.G. Papadimitriou A method to consider the electrical/chemical interaction of clay crystal in general constitutive model H. Kyokawa, S. Ohno & I. Kobayashi Extended bounding surface model for general stress paths in practical applications K. Bergholz A time dependent constitutive model for soft clay based on nonstationary flow surface theory M. Rezania, M. Mousavi Nezhad & H. Nguyen Simple constitutive models to represent the effect of mechanical damage and abrasion on the short-term load-strain response of geosynthetics A.M. Paula & M. Pinho-Lopes Modelling the small strain behaviour of a cemented silty sand with bounding plasticity F. Panico, A. Viana da Fonseca & J. Vaunat Incorporation of creep into an elasto-plastic soil model for time-dependent analysis of a high rockfill dam P. Pramthawee & P. Jongpradist Numerical simulation of a SHTB system for a constant-resistance large-deformation bolt H. Manchao, G. Weili, L. Chen & L.R. Sousa SHANSEP approach for slope stability assessments of river dikes in The Netherlands T.D.Y.F. Simanjuntak, D.G. Goeman, M. de Koning & J.K. Haasnoot Incorporating the state parameter into a simple constitutive model for sand D.M.G. Taborda, D.M. Potts, L. Zdravkovic & A.M.G. Pedro Governing parameter method for numerical integration of constitutive models for clays M. Vukicevic & S. Jockovic Finite element, discrete element and other numerical methods. Coupling of diverse methods DEM simulation of the mechanism of particle dissolution on the behavior of collapsible soils H. Bayesteh, T. Ghasempour & M.R. Nabizadeh Shahrbabak Modelling soil-water interaction with the material point method. Evaluation of single-point and double-point formulations F. Ceccato, A. Yerro & M. Martinelli Non-Euclidian discrete geometric modeling of granular soils Y. Larom & S. Pinkert Numerical investigations on the liquid-solid transition of a soil bed with coupled CFD-DEM M. Kanitz, E. Denecke & J. Grabe Free vibration analysis of piled raft foundation by FE-BE coupling method J. Jyoti Mandal & S. Ganguly An iterative sequential Monte Carlo filter for Bayesian calibration of DEM models H. Cheng, S. Luding, V. Magnanimo, T. Shuku, K. Thoeni & P. Tempone Particle-based modelling of cortical meshes for soil retaining applications F. Gabrieli, A. Pol, K. Thoeni & N. Mazzon Usability of piezocone test for finite element modelling of long-term deformations in soft soils M. D’Ignazio, N. Sivasithamparam & H.P. Jostad Study of the validity of a rectangular strip track/soil coupling in railway semi-analytical prediction models D. Ghangale, J. Romeu, R. Arcos, B. Noori, A. Clot & J. Cayero DEM modelling of dynamic penetration in granular material N. Zhang, M. Arroyo, A. Gens & M. Ciantia A methodology for the 3D analysis of foundations for marine structures P. Mira, J.A. Fernandez-Merodo, M. Pastor, D. Manzanal, M.M. Stickle, A. Yague, I. Rodriguez, J.D. Lopez, A. Tomas, G. Barajas & J. Lopez-Lara Axisymmetric formulation of the material point method for geotechnical engineering applications V. Galavi, F.S. Tehrani, M. Martinelli, A.S. Elkadi & D. Luger Finite element modeling of innovative energy geo-structure behaviour F. Ronchi, D. Salciarini & C. Tamagnini Effects of sandy soils permeability variation on the pore pressure accumulation due to cyclic and dynamic loading H. Bayraktaroglu & H.E. Tasan Numerical study of pile setup for displacement piles in cohesive soils Y.X. Lim, S.A. Tan & K.K. Phoon A relook into numerical simulations of the pressuremeter test for the calibration of advanced soil models Q.J. Ong & S.A. Tan Direct infinite element for soil structure interaction in time domain Y. Bakhtaoui & A. Chelghoum A robust numerical technique for analysis of coupled problems in elasto-plastic porous media O. Ghaffaripour & A. Khoshghalb Soil-structure interaction in coupled models B. Martinez-Bacas, D. Simic, M. Perez-Escacho, C.J. Bajo-Pavia Reliability and probability analysis Impact of considering oriented rock variability on tunnel excavation D. Ferreira, A.M.G. Pedro, P.A.L.F. Coelho, J. Almeida e Sousa & D.M.G. Taborda Condition

António S. Cardoso, José L. Borges, Pedro A. Costa, António T. Gomes, José C. Marques & Castorina S. Vieira work at the Faculty of Engineering, University of Porto, Porto, Portugal.