Technical Papers

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

Guotao Meng, Christine Detournay, and Peter Cundall

Abstract

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.

https://doi.org/10.1061/(ASCE)GM.1943-5622.0001646

Received: January 25, 2019

Accepted: September 24, 2019

Published online: March 19, 2020

Latest News
  • Itasca has announced the release of FLAC2D v9 Itasca has announced the release of FLAC2D v9, revolutionizing the way we analyze and predict...
    Read More
  • 6th Itasca Symposium on Applied Numerical Modeling The next Itasca Symposium will take place June 3 - 6, 2024, in Toronto, Canada....
    Read More
  • Itasca International Inc. announces the Selection of its New CEO Itasca International Inc. announces the Selection of its New CEO...
    Read More

Upcoming Events
15 Jul.
EUROCK 2024
The conference will feature two main tracks: the scientific track and the industrial track. There will be short courses and workshops o... Read More
26 Aug.
FLAC3D V9.1 and Griddle V2.0 2024
... Read More