Articles scientifiques

Formulation and Application of a Constitutive Model for Multijointed Material to Rock Mass Engineering

Guotao Meng, Christine Detournay, and Peter Cundall


The behavior of foliated rock masses presents challenging engineering issues. This paper presents the formulation of a constitutive model to simulate the behavior of foliated rock mass. The 3D elastoplastic constitutive model, called Comba, accounts for the presence of arbitrary orientations of weakness in a nonisotropic elastoplastic matrix. The paper presents simulation results for two example applications in rock mass engineering: the stability of a valley in foliated rock involving sliding and toppling mechanisms; and the analysis of the deformation of a dam foundation in columnar basalt. The analyses demonstrate aspects of the modeling capabilities of the Comba model for application to rock masses with tight multijoint sets in general, and with columnar basalt features in particular.

Received: January 25, 2019

Accepted: September 24, 2019

Published online: March 19, 2020

Dernières Nouvelles
  • Itasca France has moved! Itasca France's office is now located at : 29 Avenue Joannes Masset 69009 Lyon -...
    En savoir plus
  • Nous avons déménagé! Nous sommes désormais basés dans le 9ème arrondissement de Lyon, dans le secteur de Gorge...
    En savoir plus
  • Les licences Web sont désormais disponibles! Les licences Web sont particulièrement adaptées pour les structures avec de nombreux utilisateurs localisés à...
    En savoir plus

Évènements à Venir
2 nov.
JNGG 2020 Lyon
The 10th National Days of Geotechnics and Engineering Geology are co-organized by the GeoMaS laboratory of INSA Lyon, ENTPE and Cerema ... En savoir plus
4 nov.
Computational Geomechanics in Reservoir Engineering Using FLAC and UDEC
The main objective of this course is to demonstrate the implementation of numerical modeling and geomechanics simulation in reservoir e... En savoir plus
2 févr.
This hands-on, virtual training course is 16 hours total, spread over four days in a 1.5-week period, and covers the analysis of embank... En savoir plus