Modeling roughness effect of joint using rough-joint model

Chia Chi Chiu, Meng-Chia Weng*, Tsan Hwei Huang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


This study proposed a rough-joint model to simulate the strength and deformability of rock joint under various loadings. The proposed model adopted the Barton model to consider the roughness effect of joint. To implement the rough-joint model in DEM software, three calculation modifications are performed. Afterward, the proposed model was verified by comparing to theoretical model. The comparisons showed that the proposed model is versatile in simulating the shear displacement and shear dilation of joint. Moreover, this study investigated the influence of particle size on the applicability of rough-joint model, and the results indicate that particle sizes have no significant influence on shear behavior, which indicates the rough-joint model is suitable for different scale simulations.

Original languageEnglish
Title of host publicationProceedings of the 7th International Conference on Discrete Element Methods
EditorsXikui Li, Yuntian Feng, Graham Mustoe
PublisherSpringer Science and Business Media, LLC
Number of pages12
ISBN (Print)9789811019258
StatePublished - 1 Jan 2017
Event7th International Conference on Discrete Element Methods, DEM7 2016 - Dalian, China
Duration: 1 Aug 20164 Aug 2016

Publication series

NameSpringer Proceedings in Physics
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941


Conference7th International Conference on Discrete Element Methods, DEM7 2016

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