Change search
ReferencesLink to record
Permanent link

Direct link
Discrete element simulation of fracture surface damage and gouge particle evolution in a rock fracture segment
Stockholm University, Faculty of Science, Department of Geological Sciences.
2013 (English)In: Rock Characterisation, Modelling and Engineering Design Methods / [ed] Xia-Ting Feng, John A. Hudson, Fei Tan, Boca Raton, USA: CRC Press, 2013, 385-390 p.Conference paper (Refereed)
Abstract [en]

The surface damage and evolution of gouge materials in rock fractures or faults undergoing shear can change fracture properties in terms of shear strength and dilation, fluid transmissivity and retardation for contaminants. In order to conceptually understand fracture surface damage and gouge behaviors in fracture voids, the particle mechanics models were used to simulate the process of gouge particle plowed off from fracture asperities and subsequently their evolution in a fracture segment undergoing shear. The results show that significant abrasion and damage occurred by wearing the contact asperities and cracking the fracture surfaces. Gouge particles behave in two different ways under low and high normal stresses, respectively. Under low normal stress, gouge particles mainly roll with the moving fracture walls, with little surface damage. Under high normal stress, gouge particles can be crushed into a few major pieces and a large number of minor comminuted particles, accompanied by more severe damage (abrasion and micro-cracking).

Place, publisher, year, edition, pages
Boca Raton, USA: CRC Press, 2013. 385-390 p.
National Category
URN: urn:nbn:se:su:diva-109027ISI: 000342685900064ISBN: 978-1-138-00057-5OAI: diva2:762062
3rd International-Society-for-Rock-Mechanics (ISRM) SINOROCK Symposium, JUN 18-20, 2013, Shanghai, PEOPLES R CHINA


Available from: 2014-11-10 Created: 2014-11-10 Last updated: 2014-11-10Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Zhao, Zhihong
By organisation
Department of Geological Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 16 hits
ReferencesLink to record
Permanent link

Direct link