2024

• Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Degago, Samson Abate; Houlsby, G. T.. (2024) Modified cam clay bounding surface hyper-viscoplastic model. Géotechnique
  Academic article
• Tran, Quoc Anh; Sørlie, Erik Ravik; Grimstad, Gustav; Eiksund, Gudmund Reidar; Takahashi, Hidenori; Sassa, Shinji. (2024) Influence of sediment permeability in seismic-induced submarine landslide mechanism: CFD-MPM validation with centrifuge tests and analysis. Computers and geotechnics
  Academic article
• Sukuvara, Dan Sergei; Vaslestad, Jan; Scibilia, Elena; Baardvik, Gunvor; Grimstad, Gustav. (2024) A Critical Review of Methods for Backfill Soil Modulus in Design of Flexible Culverts. Transportation Research Record
  Academic article

2023

• Hov, Sølve; Paniagua Lopez, Ana Priscilla; Grimstad, Gustav; Pan, Yutao. (2023) Kan forsterkning av bløt grunn bli bærekraftig?. Byggeindustrien
  Feature article
• Tran, Quoc Anh; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2023) MPMICE: A hybrid MPM-CFD model for simulating coupled problems in porous media. Application to earthquake-induced submarine landslides. International Journal for Numerical Methods in Engineering
  Academic article
• Hov, Sølve; Paniagua Lopez, Ana Priscilla; Grimstad, Gustav; Pan, Yutao. (2023) Kan forsterkning av bløt grunn bli bærekraftig?. Forskersonen.no
  Feature article
• Attari, Yeganeh; Jostad, Hans Petter; Grimstad, Gustav; Eiksund, Gudmund Reidar. (2023) Evaluation of Pile Driving Effects on Slope Stability in Clay. Geotechnical and Geological Engineering
  Academic article
• Rødvand, Laura Anne; Jostad, Hans Petter; Grimstad, Gustav; Andresen, Lars. (2023) Modelling mesh independent failure loads of a soft strain-softening clay using a rate dependent model. Computers and geotechnics
  Academic article
• Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Nordal, Steinar. (2023) A set of hyper-viscoplastic critical state models with different friction mobilisation criteria. International Journal of Solids and Structures
  Academic article
• Long, Michael; Paniagua Lopez, Ana Priscilla; Grimstad, Gustav; Sponås, Egil Berg Antoniazzi; Bjertness, Endre; Ritter, Stefan. (2023) Behaviour of 60-year-old trial embankments on peat. Engineering Geology
  Academic article

2022

• Long, Michael; Grimstad, Gustav; Trafford, Andrew. (2022) Prediction of embankment settlement on Swedish peat using the soft soil creep model. Proceedings of the Institution of Civil Engineers : Geotechnical Engineering
  Academic article
• Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2022) On the isotache viscous modelling of clay behaviour using the hyperplasticity approach. Géotechnique
  Academic article
• Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Lubbad, Raed Khalil. (2022) Report on calibrated and validated numerical models to estimate site specific stability of coastal infrastructure in a changing climate with thawing permafrost. NUNATARYUK project
  Report
• Long, Mike; Paniagua Lopez, Ana Priscilla; Grimstad, Gustav; Trafford, Andrew; Degago, Samson Abate; L Heureux, Jean-Sebastien. (2022) Engineering properties of Norwegian peat for calculation of settlements. Engineering Geology
  Academic article
• Rødvand, Laura Anne; Jostad, Hans Petter; Grimstad, Gustav; Andresen, Lars. (2022) Strain localisation in sensitive clays: can rate dependency provide mesh independent results?. Computers and geotechnics
  Academic article
• Gao, Hao; Ghoreishian Amiri, Seyed Ali; Kjelstrup, Signe; Grimstad, Gustav; Loranger, Benoit; Scibilia, Elena. (2022) Formation and growth of multiple, distinct ice lenses in frost heave. International journal for numerical and analytical methods in geomechanics (Print)
  Academic article
• Tran, Quoc Anh; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2022) MPMICE: A hybrid MPM-CFD model for simulating coupled problems in porous media. Application to earthquake-induced submarine landslides. arXiv.org
  Academic article
• Dadrasajirlou, Davood; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali. (2022) Hyper-Viscoplastic Modelling of Clay Behaviour. Norges teknisk-naturvitenskapelige universitet Doctoral theses at NTNU (1)
  Doctoral dissertation
• Grimstad, Gustav; Nordal, Steinar; Solberg, Inger-Lise; Ottesen, Hanne Bratlie. (2022) Om kvikkleire og skredet den 30. desember 2020 i Gjerdrum. Naturen
  Academic article

2021

• Kjelstrup, Signe; Ghoreishian Amiri, Seyed Ali; Loranger, Benoit; Gao, Hao; Grimstad, Gustav. (2021) Transport coefficients and pressure conditions for growth of ice lens in frozen soil. Acta Geotechnica
  Academic article
• Lyu, Chuangxin; Grimstad, Gustav; Nishimura, Satoshi. (2021) Pore pressure coefficient in frozen soils. Géotechnique
  Academic article
• Aamodt, Magnus Træland; Grimstad, Gustav; Nordal, Steinar. (2021) Effect of Strength Anisotropy on the Stability of Natural Slopes . IOP Conference Series: Earth and Environmental Science (EES)
  Academic article
• Lyu, Chuangxin; Nishimura, Satoshi; Ghoreishian Amiri, Seyed Ali; Zhu, Feng; Eiksund, Gudmund Reidar; Grimstad, Gustav. (2021) Pore-water pressure development in a frozen saline clay under isotropic loading and undrained shearing. Acta Geotechnica
  Academic article
• Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Gao, Hao; Kjelstrup, Signe. (2021) Numerical modelling of distinct ice lenses in frost heave. IOP Conference Series: Earth and Environmental Science (EES)
  Academic article
• Grimstad, Gustav; Long, Michael; Dadrasajirlou, Davood; Ghoreishian Amiri, Seyed Ali. (2021) Investigation of Development of the Earth Pressure Coefficient at Rest in Clay During Creep in the Framework of Hyper-Viscoplasticity. International Journal of Geomechanics
  Academic article

2020

• Hoogstraten, Sara C. van; Hermans, Sebastiaan J.; Versteijlen, Willem G.; Page, Ana M. ; Grimstad, Gustav; Pisanò, Federico. (2020) The Macro-Element Method for Offshore Wind Turbines Exposed to Extreme Loads in the Asia-Pacific Region. Deep Foundations Institute (DFI)
  Academic chapter/article/Conference paper
• Tistel, Joar; Grimstad, Gustav; Eiksund, Gudmund Reidar. (2020) A macro model for shallow foundations on granular soils describing non-linear foundation behavior. Computers & structures
  Academic article
• Grimstad, Gustav; Paniagua Lopez, Ana Priscilla; De Weerdt, Klaartje. (2020) På vegen mot karbonnegativ stabil grunn. Byggeindustrien
  Popular scientific article
• Grimstad, Gustav; Dadrasajirlou, Davood; Ghoreishian Amiri, Seyed Ali. (2020) Modelling creep in clay using the framework of hyper-viscoplasticity. Géotechnique Letters
  Academic article
• Lyu, Chuangxin; Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Høyland, Knut Vilhelm; Ingeman-Nielsen, Thomas. (2020) Comparison of Geoacoustic Models for Unfrozen Water Content Estimation. Journal of Geophysical Research (JGR): Solid Earth
  Academic article

2019

• Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Nordal, Steinar. (2019) Relations and links between soil mechanics, porous media physics, physiochemical theory, and effective medium theory. Frontiers in Physics
  Academic literature review
• Page, Ana M. ; Grimstad, Gustav; Eiksund, Gudmund Reidar; Jostad, Hans Petter. (2019) A macro-element model for multidirectional cyclic lateral loading of monopiles in clay. Computers and geotechnics
  Academic article
• Lyu, Chuangxin; Ghoreishian Amiri, Seyed Ali; Gao, Hao; Ingeman-Nielsen, Thomas; Grimstad, Gustav. (2019) Joint Acoustic and Electrical Measurements for Unfrozen Water Saturation Estimate—A Review. American Society of Civil Engineers (ASCE)
  Academic chapter/article/Conference paper
• Rødvand, Laura Anne; Andresen, Lars; Grimstad, Gustav. (2019) Case study of a road bridge hit by a landslide in highly sensitive clay.
  Chapter

2018

• Grimstad, Gustav; Rønningen, Jon Abusland; Nordal, Steinar. (2018) Application of a generalized continuous Mohr–Coulomb criterion. CRC Press
  Academic chapter/article/Conference paper
• Bjerre, Jesper; Rønningen, Jon Abusland; Grimstad, Gustav; Nordal, Steinar. (2018) Effective Stress based Model for Natural Soft Clays incorporating Restructuration. CRC Press
  Academic chapter/article/Conference paper
• Nordal, Steinar; Grimstad, Gustav; Jordbakke, Tormod; Rabstad, Kristoffer; Isachsen, Marit. (2018) On modelling of anisotropic undrained strength for non-horizontal terrain. CRC Press
  Academic chapter/article/Conference paper
• Page, Ana M. ; Grimstad, Gustav; Eiksund, Gudmund Reidar; Jostad, Hans Petter. (2018) A macro-element pile foundation model for integrated analyses of monopile-based offshore wind turbines. Ocean Engineering
  Academic article
• Rønningen, Jon Abusland; Grimstad, Gustav; Nordal, Steinar. (2018) On the convexity of yield and potential surfaces in rotational hardening critical state models. CRC Press
  Academic chapter/article/Conference paper
• Skau, Kristoffer Skjolden; Grimstad, Gustav; Page, Ana M. ; Eiksund, Gudmund Reidar; Jostad, Hans Petter. (2018) A macro-element for integrated time domain analyses representing bucket foundations for offshore wind turbines. Marine Structures
  Academic article
• Cicchetti, Lorenzo; Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Ingeman-Nielsen, Thomas. (2018) Thermo-Hydro-Mechanical simulations of Artificial Ground Freezing. Danmarks Tekniske Universitet, DTU
  Academic chapter/article/Conference paper
• Grimstad, Gustav; Ghoreishian Amiri, Seyed Ali; Watn, Arnstein; Hoff, Inge. (2018) Frost protection in roads using insulation materials. Danmarks Tekniske Universitet, DTU
  Academic chapter/article/Conference paper

2017

• Rostami, Hooman; Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav. (2017) Back analysis of Caen’s test by the recently developed frozen/unfrozen soil. Plaxis Bulletin
  Popular scientific article
• Ervik, Åse; Høyland, Knut Vilhelm; Grimstad, Gustav; Nord, Torodd Skjerve. (2017) A continuum model of large deformation continuous ductile ice crushing. Proceedings - International Conference on Port and Ocean Engineering under Arctic Conditions
  Academic article
• Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav. (2017) Constitutive Model for Long-Term Behavior of Saturated Frozen Soil. American Society of Civil Engineers (ASCE)
  Academic chapter/article/Conference paper
• Grimstad, Gustav; Karstunen, Minna; Jostad, Hans Petter; Sivasithamparam, Nallathamby; Mehli, Magne; Zwanenburg, Cor. (2017) Creep of geomaterials – some finding from the EU project CREEP. European Journal of Environmental and Civil Engineering (EJECE)
  Academic article
• Tistel, Joar; Grimstad, Gustav; Eiksund, Gudmund Reidar. (2017) Testing and modeling of cyclically loaded rock anchors. Journal of Rock Mechanics and Geotechnical Engineering
  Academic article

2016

• Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Kadivar, Mehdi; Nordal, Steinar. (2016) Constitutive model for rate-independent behavior of saturated frozen soils. Canadian geotechnical journal (Print)
  Academic article
• Tistel, Joar; Grimstad, Gustav. (2016) A macro model description of the non-linear anchor block foundation behavior. CRC Press
  Academic chapter/article/Conference paper
• Ghoreishian Amiri, Seyed Ali; Grimstad, Gustav; Kadivar, Mehdi. (2016) An elastic-viscoplastic model for saturated frozen soils. European Journal of Environmental and Civil Engineering (EJECE)
  Academic article
• Rønningen, Jon A.; Grimstad, Gustav; Nordal, Steinar. (2016) Modelling soft Scandinavian clay behavior using the asymptotic state.
  Academic chapter/article/Conference paper
• Grimstad, Gustav; Haji Ashrafi, Mohammad Ali; Degago, Samson Abate; Nordal, Steinar; Emdal, Arnfinn. (2016) Discussion of ‘Soil creep effects on ground lateral deformation and pore water pressure under embankments’. Geomechanics and Geoengineering
  Academic article
• Ghoreishian Amiri, Seyed Ali; Kadivar, Mehdi; Grimstad, Gustav. (2016) Enhanced permafrost creep model– user manual and documentation. PIAG_GA_2011‐286397‐R6
  Report

2015

• Grimstad, Gustav; Degago, Samson Abate; Boumezerane, Djamalddine. (2015) Discussion of “Viscous behaviour of clays in one-dimensional compression”. Canadian geotechnical journal (Print)
  Short communication
• Degago, Samson Abate; Grimstad, Gustav. (2015) Discussion of “Experimental investigation on the creep behavior of an unsaturated clay”. Canadian geotechnical journal (Print)
  Short communication
• Boumezerane, Djamalddine; Grimstad, Gustav. (2015) A Rheological Model for Peat That Accounts for Creep. IOS Press
  Academic chapter/article/Conference paper
• Grimstad, Gustav; Mehli, Magne; Degago, Samson Abate. (2015) Creep in Clay During the First Few Years After Construction. IOS Press
  Academic chapter/article/Conference paper
• Ghoreishian Amiri, Seyed Ali; Kadivar, Mehdi; Grimstad, Gustav. (2015) A Thermo-Hydro-Mechanical Constitutive Model for Saturated Frozen Soil. IOS Press
  Academic chapter/article/Conference paper
• Grimstad, Gustav; Haji Ashrafi, Mohammad Ali; Kadivar, Mehdi. (2015) PROFILE: Creep of geomaterials. PAN european networks science and technology
  Popular scientific article
• Grimstad, Gustav. (2015) Bjørvika synker. Byggeindustrien
  Popular scientific article
• Haji Ashrafi, Mohammad Ali; Grimstad, Gustav. (2015) Implementation of a critical state soft soil creep model with shear stiffness.
  Academic chapter/article/Conference paper
• Boumezerane, Djamalddine; Grimstad, Gustav; Makdisi, Andrew. (2015) A framework for peat behaviour based on hyperplasticity principles.
  Academic chapter/article/Conference paper
• Grimstad, Gustav; Mehli, Magne; Degago, Samson Abate. (2015) Is creep analysis creeping into practice?.
  Academic chapter/article/Conference paper
• Ghoreishian Amiri, Seyed Ali; Kadivar, Mehdi; Grimstad, Gustav. (2015) A new concept in developing a constitutive model for frozen soils.
  Academic chapter/article/Conference paper
• Jostad, Hans Petter; Grimstad, Gustav; Andersen, Knut H; Sivasithamparam, Nallathamby. (2015) A FE procedure for calculation of cyclic behaviour of offshore foundations under partly drained conditions. CRC Press
  Academic chapter/article/Conference paper

2014

• Grimstad, Gustav; Rønningen, Jon A.; Nøst, Hilde Aas. (2014) Use of IWAN models for modelling anisotropic and cyclic behavior of clays. CRC Press
  Academic chapter/article/Conference paper
• Degago, Samson; Grimstad, Gustav. (2014) Significance of sample quality in settlement analysis of field cases. CRC Press
  Academic chapter/article/Conference paper
• Bonadies, F.; Nordal, Steinar; Gylland, Anders Samstad; Grimstad, Gustav; Jostad, Hans Petter; Cuomo, S.. (2014) Numerical methods for simulation of downward progressive landslides. CRC Press
  Academic chapter/article/Conference paper
• Jostad, Hans Petter; Grimstad, Gustav; Andersen, Knut H; Saue, Morten; Shin, Yunsup; You, D. (2014) A FE Procedure for Foundation Design of Offshore Structures - Applied to Study a Potential OWT Monopile Foundation in the Korean Western Sea. Geotechnical Engineering
  Academic article
• Grimstad, Gustav; Mehli, Magne; Jostad, Hans Petter. (2014) Forskningstemaet: krypoppførsel av geomaterialer og innlemmelse i geoteknisk prosjektering.Hvordan best utføre krypmodellering?.
  Academic chapter/article/Conference paper
• Rønningen, Jon A.; Gavel-Solberg, Vegard; Grimstad, Gustav. (2014) Effective stress model for soft Scandinavian clays. Universitat Politècnica de Catalunya
  Academic chapter/article/Conference paper
• Cai, Fang; Eiksund, Gudmund Reidar; Grimstad, Gustav; Jostad, Hans Petter. (2014) An anisotropic shear strength model for cyclic accumulated plastic strain of overconsolidated clay. Electronic Journal of Geotechnical Engineering
  Academic article
• Grimstad, Gustav; Jostad, Hans Petter. (2014) Effekt av progressiv bruddutvikling for utbygging i områder med kvikkleire: Numerisk metode for beregning av udrenert brudd i sensitive materialer. Norges vassdrags‐ og energidirektorat i et samarbeid med Statens vegvesen og
  Report
• Fornes, Petter; Grimstad, Gustav; Jostad, Hans Petter. (2014) Effekt av progressiv bruddutvikling for utbygging i områder med kvikkleire: Tilbakeregning av Vestfossenskredet. Norges vassdrags‐ og energidirektorat i et samarbeid med Statens vegvesen og
  Report

2013

• Grimstad, Gustav; Rønningen, Jon A.. (2013) Creep database.
  Database
• Grimstad, Gustav; Rønningen, Jon A.; Benz, Thomas; Jostad, Hans Petter; Den Haan, Evert; Qi, Jilin. (2013) User manual for the creep database. NTNU
  Report
• Grimstad, Gustav. (2013) Creep of geomaterials webpage.
  Website (informational material)
• Grimstad, Gustav; Melhus, Ole; Degago, Samson Abate; Ebeltoft, Roger Guldvik. (2013) Modeling of rock fall impact using discrete element method (DEM. CRC Press
  Academic chapter/article/Conference paper
• Degago, Samson; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar. (2013) Misconceptions about experimental substantiation of creep hypothesis A. Presses des Ponts
  Academic chapter/article/Conference paper
• Degago, Samson; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar. (2013) Misconceptions about experimental substantion of creep hypotheis A. Presses des Ponts
  Academic chapter/article/Conference paper
• Degago, Samson Abate; Grimstad, Gustav. (2013) Evaluation of creep hypotheses A and B based on relevant laboratory tests. IOS Press
  Academic chapter/article/Conference paper
• Skau, Kristoffer Skjolden; Andresen, Lars; Jostad, Hans Petter; Fornes, Petter; Grimstad, Gustav; Page, Ana. (2013) Stability and deformations of Zelazny Most dam - One of the world's largest deponies for copper tailings.
  Academic chapter/article/Conference paper

2012

• Grimstad, Gustav; Andresen, Lars; Jostad, Hans Petter. (2012) NGI-ADP: Anisotropic shear strength model for clay. International journal for numerical and analytical methods in geomechanics (Print)
  Academic article
• Bujulu, Pancras Mugishagwe Syldion; Grimstad, Gustav. (2012) Generalized constitutive model for stabilized quick clay. Global Journal of Engineering Research
  Academic article
• Grimstad, Gustav; Jostad, Hans Petter. (2012) Stability analyses of quick clay using FEM and an anisotropic strain softening model with internal length scale.
  Academic chapter/article/Conference paper
• Bujulu, Pancras Mugishagwe Syldion; Grimstad, Gustav. (2012) Constitutive Model for Cemented Quick Clay in Deep-Mix Stabilization. Global Journal of Engineering Research
  Academic article

2011

• Grimstad, Gustav; Jostad, Hans Petter. (2011) Effekt av progressive brudd i sensitive leirer.
  Academic chapter/article/Conference paper
• Andresen, Lars; Saygili, Gökhan; Grimstad, Gustav. (2011) Finite element analysis of the Saint-Alban embankment failure with an anisotropic undrained strength model. IOS Press
  Academic chapter/article/Conference paper
• Degago, Samson Abate; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar; Olsson, Mats. (2011) Use and misuse of the isotache concept with respect to creep hypotheses A and B. Géotechnique
  Academic article
• Degago, Samson Abate; Nordal, Steinar; Grimstad, Gustav; Jostad, Hans Petter. (2011) Analyses of Väsby test fill according to creep hypothesis A and B.
  Academic chapter/article/Conference paper
• Jostad, Hans Petter; Grimstad, Gustav. (2011) Comparison of distribution functions for the non-local strain approach.
  Academic chapter/article/Conference paper

2010

• Grimstad, Gustav; Degago, Samson Abate; Nordal, Steinar; Karstunen, Minna. (2010) Modeling creep and rate effects in structured anisotropic soft clays. Acta Geotechnica
  Academic article
• Grimstad, Gustav; Degago, Samson Abate. (2010) A non-associated creep model for structured anisotropic clay (n-SAC). CRC Press
  Academic chapter/article/Conference paper
• Degago, Samson Abate; Jostad, Hans Petter; Olsson, Mats; Grimstad, Gustav; Nordal, Steinar. (2010) Time- and stress-compressibility of clays during primary consolidation. CRC Press
  Academic chapter/article/Conference paper

2009

• Grimstad, Gustav. (2009) Development of effective stress based anisotropic models for soft clays. Doktoravhandlinger ved NTNU (2009:169)
  Doctoral dissertation
• Degago, Samson Abate; Grimstad, Gustav; Jostad, Hans Petter; Nordal, Steinar. (2009) The non-uniqueness of the end-of-primary (EOP) void ratio-effective stress relationship. IOS Press
  Academic chapter/article/Conference paper

2008

• Grimstad, Gustav; Degago, Samson Abate; Nordal, Steinar; Karstunen, Minna. (2008) Modelling creep and rate effects using the time resistance concept in a model for anisotropy and destructuration.
  Academic chapter/article/Conference paper
• Grimstad, Gustav; Bujulu, Pancras Mugishagwe Syldion; Nordal, Steinar. (2008) A generalized constitutive model for stabilized quick clay.
  Academic chapter/article/Conference paper
• Bujulu, Pancras Mugishagwe Syldion; Grimstad, Gustav; Nordal, Steinar; Grande, Lars Olav. (2008) An experimentally-based constitutive model for deep-mix stabilized quick clay. CRC Press
  Academic chapter/article/Conference paper

2007

• Emdal, Arnfinn; Priol, Gregoire; Grimstad, Gustav; Lohren, A.H.. (2007) Numerical analysis of the effect of sleepers on the lateral displacement of railway track. Balkema
  Academic chapter/article/Conference paper

2006

• Thakur, Vikas Kumar Singh; Nordal, Steinar; Grimstad, Gustav. (2006) Phenomenological issues related to strain localization in sensitive clays. Geotechnical and Geological Engineering
  Academic article
• Grimstad, Gustav; Nordal, Steinar; Athanasiu, Corneliu. (2006) A constitutive model for undrained anisotropic behaviour of clays. Balkema
  Academic chapter/article/Conference paper

2005

• Grimstad, Gustav; Thakur, Vikas Kumar Singh; Nordal, Steinar. (2005) Experimental observation on formation and propagation of shear zone in Norwegian quick clay. Balkema
  Academic chapter/article/Conference paper