On the selection of joint constitutive models for geomechanics simulation of fractured rocks
OPEN ACCESS
Loading...
Author / Producer
Date
2022-05
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
OPEN ACCESS
Data
Abstract
Fractures such as faults and joints often dominate the mechanical strength and deformation of rock masses. It is thus of central importance to adopt an appropriate joint constitutive model in geomechanics simulations so that the behaviour of fractures can be realistically represented. Over the past decades, various joint constitutive models have been proposed from theoretical/experimental perspectives and implemented into different geomechanics solvers. However, numerical modelling researchers are often confronted and even confused with the question about which joint model to use in their simulations, especially when a compromise needs to be reached between the realism (or complexity) of the selected constitutive model and the difficulty in the numerical implementation. In this Short Communication, we review some of the popular joint constitutive laws that have been used for geomechanics simulations and present a discussion on their suitability and limitations, aiming to provide a guidance for the joint constitutive model selection for computer simulations. We also point out a few unrealistic features of some widely used joint constitutive models with corresponding corrections recommended.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
145
Pages / Article No.
104707
Publisher
Elsevier
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Fractures; Constitutive relationship; Numerical modelling
Organisational unit
02704 - Geologisches Institut / Geological Institute
Notes
Funding
189882 - Future evolution of meta-stable rock slopes in hydropower systems of China: Implications for long-term safety (SNF)