Change search
ReferencesLink to record
Permanent link

Direct link
Understanding coupled stress, flow and transport processes in fractured rocks
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
2013 (English)In: Geosystem Engineering, ISSN 1226-9328, Vol. 16, no 1, 2-25 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a review of a systematic research program for understanding the scale and stress effects on the transport behaviors of fractured crystalline rocks, using a hybrid discrete element and particle tracking approach. The motivation is the importance of understanding the stress effects on the behaviors of contaminant transport in fractured crystalline rocks, which is an important issue of rock mechanics for environmental safety assessments of many rock engineering projects. The study is divided into three steps: the first step is a basic study that established the mathematical platform for deriving the conditions, criteria, basic approaches, and test case results for investigating the stress and scale effects on the hydraulic behavior of the fractured rock concerned. At the second step, based on outstanding issues drawn from the first step, the study was extended to consider the effects of the correlation between the fracture aperture and size (represented by trace length) on the permeability of the fractured rock and uncertainties in deriving equivalent continuum properties of fractured rocks. The third step added the particle/solute transport processes to the mathematical platform, including different retardation mechanisms, so that the impact of stress on safety can be directly evaluated, even though it can only be done conceptually. The obtained results show that stress, scale, and inter-parameter correlations of the fracture system geometry are dominant issues for the understanding and characterization of coupled hydro-mechanical processes of fractured rocks and play a significant role for understanding the mass transport behavior in them, with direct impact on geo-environmental safety.

Place, publisher, year, edition, pages
2013. Vol. 16, no 1, 2-25 p.
Keyword [en]
coupled process, discrete fracture network, equivalent continuum, equivalent property, fractured rock, representative elementary volume
National Category
Geotechnical Engineering
URN: urn:nbn:se:kth:diva-127179DOI: 10.1080/12269328.2013.780709ScopusID: 2-s2.0-84880958538OAI: diva2:643806

QC 20130828

Available from: 2013-08-28 Created: 2013-08-28 Last updated: 2013-08-28Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Jing, Lanru
By organisation
Sustainable development, Environmental science and Engineering
Geotechnical Engineering

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

Altmetric score

Total: 27 hits
ReferencesLink to record
Permanent link

Direct link