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

Numerical modelling of coupled thermo-hydro-mechanical problems: Challenges and pitfalls
D.M. Potts, W. Cui, K.A. Gawecka, D.M.G. Taborda & L. Zdravković

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. Vukićević & S. Jocković

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. Taşan

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

Conditional random field simulation for analysis of deep excavations in soft soils
C.J. Sainea-Vargas, M.C. Torres-Suarez & G. Auvinet

Stability assessment of the unsaturated slope under rainfall condition considering random rainfall patterns
G. Tang, J. Huang, D. Sheng & S. Sloan

Numerical evaluation of fragility curves for earthquake liquefaction induced settlements of a levee using Gaussian Processes
F. Lopez-Caballero

Reliability analysis of constant total stress foundations subjected to water table fluctuations
J.A. Alonso-Pollan, L.M. Munoz & R. Jimenez

A practical case study of slope stability analysis using the random finite element method
T. de Gast, A.P. van den Eijnden, P.J. Vardon & M.A. Hicks

Modes of improbable slope failure in spatially variable cohesive soils
A.P. van den Eijnden & M.A. Hicks

3D slope stability analysis with spatially variable and cross-correlated shear strength parameters
D. Varkey, M.A. Hicks & P.J. Vardon

Variability in offshore soils and effects on probabilistic bearing capacity
E.A. Oguz, N. Huvaj & C.E. Uyeturk

Stochastic study of stability of unsaturated heterogeneous slopes destabilised by rainfall
T.M.H. Le

Large deformation—large strain analysis

Optimizing the MPM model of a reduced scale granular flow by inverse analysis
M. Calvello, P. Ghasemi, S. Cuomo & M. Martinelli

Modelling rockfall dynamics using (convex) non-smooth mechanics
G. Lu, A. Caviezel, M. Christen, Y. Buhler & P. Bartelt

On the use of the material point method to model problems involving large rotational deformation
L. Wang, W.M. Coombs, C.E. Augarde, M. Brown, J. Knappett, A. Brennan, C. Davidson, D. Richards & A. Blake

Issues with the material point method for geotechnical modelling, and how to address them
C.E. Augarde, Y. Bing, T.J. Charlton, W.M. Coombs, M. Cortis, M.J.Z. Brown, A. Brennan & S. Robinson

LDFEM analysis of FDP auger installation in cohesive soil
J. Konkol, L. Bałachowski & J. Linowiecki

Large deformation finite element analyses for the assessment of CPT behaviour at shallow depths in NC and OC sands
H.K. Engin, H.D.V. Khoa, H.P. Jostad, D.A. Kort, R. Bogelund Pedersen & L. Krogh

Pipe-seabed interaction under lateral motion
H. Sabetamal, J.P. Carter & S.W. Sloan

Validation of Coupled Eulerian-Lagrangian (CEL) method by means of large scale foundation testing
D. Heinrich, T. Quiroz & A. Schenk

A coupled constitutive model for modelling small strain behaviour of soils
S. Seyedan & W.T. Sołowski

Three-dimensional analysis of penetration problems using G-PFEM
L. Monforte, M. Arroyo, A. Gens & J.M. Carbonell

The use of MPM to estimate the behaviour of rigid structures during landslides
L. Gonzalez Acosta, I. Pantev, P.J. Vardon & M.A. Hicks

Assessment of dike safety within the framework of large deformation analysis with the material point method
B. Zuada Coelho, A. Rohe, A. Aboufirass, J.D. Nuttall & M. Bolognin

Numerical simulation of pile installation in saturated soil using CPDI
C. Moormann, S. Gowda & S. Giridharan

Multi-material arbitrary Lagrangian-Eulerian and coupled Eulerian-Lagrangian methods for large deformation geotechnical problems
M. Bakroon, R. Daryaei, D. Aubram & F. Rackwitz

Artificial intelligence and neural networks

Use of artificial neural networks to analyse tunnelling-induced ground movements obtained from geotechnical centrifuge testing
A. Franza, P.G. Benardos & A.M. Marshall

Construction of bedrock topography from airborne-EM data by artificial neural network
A.K. Lysdahl, L. Andresen & M. Voge

Artificial neural networks in the analysis of compressibility of marine clays of Grande Vitória, ES, Brazil
A.G. Oliveira Filho, K.V. Bicalho, W.H. Hisatugu & C. Romanel

Rock and soil cutting slopes stability condition identification based on soft computing algorithms
J. Tinoco, A. Gomes Correia, P. Cortez & D. Toll

Estimating spatial correlations from CPT data using neural networks and random fields
J.D. Nuttall

Human-driven machine-automation of engineering research
M.D.L. Millen, A. Viana Da Fonseca & X. Romao

Ground flow, thermal and coupled analysis

Heat transfer process in a thermo-active diaphragm wall from monitoring data and numerical modelling
D. Sterpi, A. Angelotti, O. Habibzadeh Bigdarvish & D. Jalili

Stress dependency of the thermal conductivity of a regular arrangement of spheres in a vacuum
J.R. Maranha & A. Vieira

Factors affecting the thermo-mechanical response of a retaining wall under non-isothermal conditions
E. Sailer, D.M.G. Taborda, L. Zdravković & D.M. Potts

Energy efficiency evaluation in thermoactive geostuctures: A case study
J. Sequeira, A. Vieira & R. Cardoso

Hydro-mechanical modelling of an unsaturated seal structure
D.F. Ruiz, J. Vaunat, A. Gens & M.A. Manica

Finite element modelling of excess pore fluid pressure around a heat source buried in saturated soils
W. Cui, A. Tsiampousi, D.M. Potts, K.A. Gawecka, L. Zdravković & D.M.G. Taborda

Numerical investigation of the effects of thermal loading on the mechanical behaviour of energy piles in sand
I. Kamas, E. Comodromos, D. Skordas & K. Georgiadis

Finite-element modelling of thermo-mechanical soil-structure interaction in a thermo-active cement column buried in London Clay
Y. Ouyang, L. Pelecanos & K. Soga

Earthquake engineering, soil dynamics and soil-structure interaction

Numerical noise effects and filtering in liquefiable site response analyses
Y.Z. Tsiapas & G.D. Bouckovalas

Influence of water table fluctuation on soil-structure interaction
M.P. Santisi d’Avila, L. Lenti & S. Martino

Numerical simulation on the ground response in saturated sand
M. Morigi, G.M.B. Viggiani, R. Conti & C. Tamagnini

Simulating the seismic response of laterally spreading ground after its passive stabilization against liquefaction
A.G. Papadimitriou, Y.K. Chaloulos, G.I. Agapoulaki, K.I. Andrianopoulos & Y.F. Dafalias

Artificial neural networks for the evaluation of impedance functions of inclined pile groups
A. Franza, M.J. DeJong, M. Morici, S. Carbonari & F. Dezi

3-D source-to-site numerical investigation on the earthquake ground motion coherency in heterogeneous soil deposits
F. Gatti, S. Touhami, F. Lopez-Caballero & D. Pitilakis

Analysis of observed liquefaction during the 2016 Kumamoto earthquake
B. Ismael & D. Lombardi

Potential mechanism for recurrent mid-span failure of pile supported river bridges in liquefied soil
P. Mohanty & S. Bhattacharya

Effect of earthquake characteristics on permanent displacement of a cantilever retaining wall
J. Bakr & S. Mohd Ahmad

Rock mechanics

Arching of granular flow under loading in silos
P. To & N. Sivakugan

Boundary stress distribution in silos filled with granular material
P. To & N. Sivakugan

Numerical simulation of the advance of a deep tunnel using a damage plasticity model for rock mass
M. Schreter, M. Neuner & G. Hofstetter

Experimental validation of numerical rockfall trajectory models
A. Caviezel, Y. Bühler, G. Lu, M. Christen & P. Bartelt

Providing perfect numerical simulations of flexible rockfall protection systems
A. Volkwein

Time-lapse crosshole seismic tomography for characterisation and treatment evaluation of the Ribeiradio dam rock mass foundation
M.J. Coelho, R. Mota, A. Morgado & J. Neves

Opening effect on mechanical behaviour of rock brick
Y.L. Gui

VOLUME 2

Ultimate limit state design of retaining wall using finite element method and advanced soil models
H.C. Yeow

Numerical analysis of a foundation of a cooling tower in difficult geotechnical conditions
W. Bogusz & M. Kociniak

Consideration of numerical methods in next generation Eurocode 7 (EN 1997)—current state of the amendment
A.S. Lees & H. Walter

Shallow and deep foundations

Analysis of piled foundations partially embedded in rock
J.R. Garcia, P.J.R. Albuquerque & R.A.A. Melo

The bearing capacity of shallow foundations on slopes
S. Van Baars

The failure mechanism of pile foundations in non-cohesive soils
S. Van Baars

Long-term settlements induced by a large mat foundation
A. Sanzeni, F. Colleselli & V. Cortellini

Design simulation of deformations during short-term loading of soft clay
A. Berglin, A.B. Lundberg & S. Addensten

An elastoplastic 1D Winkler model for suction caisson foundations under combined loading
S.K. Suryasentana, B.W. Byrne, H.J. Burd & A. Shonberg

Analysis of friction piles in consolidating soils
N. O’Riordan, A. Canavate-Grimal, S. Kumar & F. Ciruela-Ochoa

Soil-foundation contact models in finite element analysis of tunnelling-induced building damage
W.N. Yiu, H.J. Burd & C.M. Martin

Finite element modelling of extent of failure zone in c-φ soil at the cutting edge of open caisson
J.T. Chavda & G.R. Dodagoudar

Numerical 3D analysis of masonry arch bridge cracks using jointed rock model
B. Penzes, H.-C. Yeow, P. Harris & C. Heap

Finite element analysis of soft boundary effects on the behaviour of shallow foundations
C.X. Azúa-González, C. Pozo & A. Askarinejad

Development of load-transfer curves for axially-loaded piles using fibre-optic strain data, finite element analysis and optimisation
L. Pelecanos & K. Soga

Numerical analysis of concrete piles driving in saturated dense and loose sand deposits
M. Aghayarzadeh, H. Khabbaz & B. Fatahi

Slopes and cuts

MPM modelling of static liquefaction in reduced-scale slope
P. Ghasemi, M. Martinelli, S. Cuomo & M. Calvello

Thermomechanical modelling of rock avalanches with debris, ice and snow entrainment
P. Bartelt, M. Christen, Y. Buhler & O. Buser

Effect of failure criterion on slope stability analysis
F. Tschuchnigg, H.F. Schweiger & M. Sallinger

2D and 3D rock slope stability analysis in an open-pit mine
J.G. Soto & C. Romanel

Increased efficiency of finite element slope stability analysis by critical failure path detection
R. Farnsworth, A. Arora & D.V. Griffiths

Stabilisation of excavated slopes with piles in soils with distinctly different strain softening behaviour
S. Kontoe, D.M. Potts, F. Summersgill & Y. Lee

Groundwater flow modelling for the design of a dry dock
R. Ramos, L. Caldeira & E. Maranha das Neves

Influence of periodical rainfall on shallow slope failures based on finite element analysis
A. Chinkulkijniwat, S. Horpibulsuk & S. Yubonchit

Slope instabilities triggered by creep induced strength degradation
A. Kalos & M. Kavvadas

Supported excavations and retaining walls

Numerical analyses of a pile wall at the toe of a natural slope
J. Castro, J. Canizal, A. Da Costa, M. Miranda, C. Sagaseta & J. Casanueva

Inverse analysis of horizontal coefficient of subgrade reaction modulus for embedded retaining structures
P. He, W. Wang, Z. Xu, J. Li & Z. Li

Performance based design for propped excavation support systems in Qom, Iran
E. Ghorbani, M. Khodaparast & A. Moezy

Three-dimensional effects of nail arrangement on soil-nailed convex corners
M. Sabermahani, M.R. Nabizadeh Shahrbabak & M. Mohammadi Bagheri

Design of anchored sheet pile walls in cohesionless soil
S. Krabbenhoft & R. Christensen

Back-analysis of Crossrail deep excavations using 3D FE modelling—development of BRICK parameters for London Clay
Y. Chen, G. Biscontin, A.K. Pillai & D.P. Nicholson

Numerical analysis of an unsymmetrical railcar unloading pit and connection trench
G. Pisco, C. Fartaria, R. Tomasio, J. Costa & J. Azevedo

Numerical analysis of a tied-back wall in saturated cohesive soils
K. Ninanya, J.C. Huertas, H. Ninanya & C. Romanel

A parametric study of efficiency of buttress walls in reducing the excavation-induced tunnel movement
K.H. Law

Soil parameter identification for excavations: A falsification approach
W. Ze-Zhou, G. Siang Huat, K. Chan Ghee & I.F.C. Smith

Numerically derived P-Y curves for rigid walls under active conditions
I. El-Chiti, G. Saad, S.S. Najjar & S. Alzoer

Two dimensional upper and lower-bound numerical analysis of the basal stability of deep excavations in clay
T. Santana, M. Vicente da Silva, A.N. Antao & N.G. Guerra

A method to consider the nonlinear behaviour of reinforced concrete in flexible earth-retaining walls: Preliminary results
J. Candido Freitas, M. Matos Fernandes, M.A.C. Ferraz & J.C. Grazina

Embankments and dams

A simplified finite element implementation of the Sellmeijer model for backward erosion piping
B.A. Robbins & D.V. Griffiths

Modelling a sand boil reactivation in the middle-lower portion of the Po river banks
M.F. Garcia Martinez, G. Gottardi, M. Marchi & L. Tonni

Finite element analysis of the monitored long-term settlement behaviour of Kouris earth dam in Cyprus
L. Pelecanos, D. Skarlatos & G. Pantazis

Hydromechanical analysis of gravity dam foundations
N. Monteiro Azevedo, M.L.B. Farinha, G. Mendonca & I. Cismasiu

3D coupled hydromechanical analysis of dam foundations
M.L.B. Farinha, N. Monteiro Azevedo, N.S. Leitao, E. Castilho & R. Camara

An in-house VBA program to model the settlement and consolidation of thickened mine tailings
N. Raposo, R. Bahia & A. Topa Gomes

Deep foundations and ground improvement for the slope stability of the Disueri dam (Italy)
F. Castelli & M. Greco

Discrete element modelling of the failure mechanisms of Foz Tua arch dam foundation
M. Espada, J. Muralha, J.V. Lemos, N. Plasencia, J.N. Figueiredo, D. Silva Matos & J.C. Marques

Tunnels and caverns (and pipelines)

Linear models for the evaluation of the response of beams and frames to tunnelling
A. Franza, S. Acikgoz & M.J. DeJong

Numerical modelling within a risk assessment process for excavations over a brick arch tunnel at Earls Court, London
B. Gilson, F. Mirada, C. Deplanche, M. Devriendt, M. Scotter & H. Jayawardena

Numerical modelling strategy to accurately assess lining stresses in mechanized tunneling
A. de Lillis, V. De Gori & S. Miliziano

Tunnelling induced settlements—finite element predictions, soil model complexity and the empirical inverse Gaussian settlement curve
G. Marketos

Stress redistribution in the central pillar between twin tunnels
A.M.G. Pedro, J.C.D. Grazina & J. Almeida e Sousa

Numerical analysis of interaction behavior of yielding supports in squeezing ground
A.-L. Hammer, R. Hasanpour, C. Hoffmann & M. Thewes

A practical tool for the preliminary estimation of stability of underground quarries excavated in jointed chalk layers of North France
F. Rafeh, H. Mroueh & S. Burlon

Numerical analysis of old masonry vaults of the Paris subway tunnels
E. Bourgeois, O. Moreno Regan, A.S. Colas, P. Chatellier, J.F. Douroux & A. Desbordes

Investigation of the response of bored tunnels to seismic fault movement
K. Tsiripidou & K. Georgiadis

Numerical study on water-jet cutting technique applied in underground coal mines
W.L. Gong, Y.X. Sun, X. Gao, J.L. Feng, Z.H. Li, L.R. Sousa & G.X. Xie

Ground improvement and reinforcement

A new method for finite element modelling of prefabricated vertical drains
A.M. Lester, G.P. Kouretzis & S.W. Sloan

Finite element modelling of reinforced road pavements with geogrids
J. Neves & M. Goncalves

Optimal design of reinforced slopes
J. Gonzalez-Castejon & C. Smith

Simulation of a jet injection into an elastic perfectly-plastic soil using uGIMP
D. Ribeiro, J.R. Maranha & R. Cardoso

Numerical modelling of limit load increase due to shear band enhancement
K.-F. Seitz & J. Grabe

Finite element modelling of rigid inclusion ground improvement
K. Lődor & B. Moczar

Stone column-supported embankments on soft soils: Three-dimensional analysis through the finite element method
D.O. Marques & J.L. Borges

Three-dimensional parametric study of stone column-supported embankments on soft soils
D.O. Marques & J.L. Borges

Finite element analysis of performance of bearing reinforcement earth wall
S. Horpibulsuk, P. Witchayaphong, C. Suksiripattanapong, A. Arulrajah & R. Rachan

Numerical studies on the influence of column reinforcements with soil-binders on railway tracks
A. Paixao, A. Francisco, E. Fortunato & J.N. Varandas

Finite element analysis of soil-structure interaction in soil anchor pull-out tests
H.J. Seo & L. Pelecanos

The effect of non-linear soil behavior on mixed traffic railway lines
K. Dong, O. Laghrouche, D.P. Connolly, P.K. Woodward & P. Alves Costa

Offshore geotechnical engineering

The dynamics of an offshore wind turbine using a FE semi-analytical analysis considering the interaction with three soil profiles
Dj. Amar Bouzid, R. Bakhti & S. Bhattacharya

Numerical method for evaluation of excess pore pressure build-up at cyclically loaded offshore foundations
M. Achmus, J.-E. Saathoff & K. Thieken

Stiffness of monopile foundations under un- and reloading conditions
K. Thieken, M. Achmus, J.-E. Saathoff, J. Albiker & M. Terceros

3D FE dynamic modelling of offshore wind turbines in sand: Natural frequency evolution in the pre-to after-storm transition
E. Kementzetzidis, W.G. Versteijlen, A. Nernheim & F. Pisano

Multiscale investigations on the failure mechanism of submarine sand slopes with coupled CFD-DEM
M. Kanitz & J. Grabe

One-dimensional finite element analysis of the soil plug in open-ended piles under axial load
T.M. Joseph, H.J. Burd, G.T. Houlsby & P. Taylor

Spudcan installation and post installation behaviour in soft clay: The press-replace method
W. Ze-Zhou & G.S. Huat

Behaviour of laterally loaded pile
S. Ahayan, B. Cerfontaine, F. Collin & P. Kotronis

Modelling of the lateral loading of bucket foundations in sand using hydro-mechanical interface elements
B. Cerfontaine, R. Charlier & F. Collin

Effect of scour on the behavior of a combined loaded monopile in sand
Q. Li, L.J. Prendergast, A. Askarinejad & K. Gavin

Nonlinear finite-element analysis of soil-pipe interaction for laterally-loaded buried offshore pipelines
H.E.M. Mallikarachchi, L. Pelecanos & K. Soga

Development and validation of a numerically derived scheme to assess the cyclic performance of offshore monopile foundations
J. Albiker & M. Achmus

Propagation of vibrations and mitigation measures

Dynamic soil excitation from railway tunnels
P. Bucinskas & L.V. Andersen

Efficient finite-element analysis of the influence of structural modifications on traffic-induced building vibrations
P. Persson & L.V. Andersen

Assessment of measures to mitigate traffic induced vibrations by means of advanced validated 3D-Finite Element Analyses
T. Meier & F. Walther

Experimental validation of a 3D FEM numerical model for railway vibrations
J. Fernandez Ruiz & P. Alves Costa

Probabilistic assessment of ground-vibration transfer in layered soil
L.V. Andersen, P. Bucinskas & P. Persson

Determining the railway critical speed by using static FEM calculations
J. Estaire & I. Crespo-Chacon

Stress path evolution in the ground due to railway traffic. Comparison between ballasted and ballastless track systems
A. Ramos, A.G. Correia, R. Calcada & P. Alves Costa

Geotechnical challenges in very high speed railway tracks. The numerical modelling of critical speed issues
A. Colaco & P. Alves Costa

Numerical modelling of vibration mitigation due to subway railway traffic
P. Lopes, P. Alves Costa, A. Silva Cardoso, R. Calcada & J. Fernandez

Mitigation of vibration induced by railway traffic through soil buried inclusions: A numerical study
A. Castanheira-Pinto, P. Alves Costa, L. Godinho & P. Amad-Mendes

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.