Geohydromechanical Processes in the Excavation Damaged Zone in Crystalline Rock, Rock Salt, and Indurated and Plastic Clays

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Geohydromechanical Processes in the Excavation Damaged Zone in Crystalline Rock, Rock Salt, and Indurated and Plastic Clays. / Bernier, Frédéric; Tsang, Chin-Fu; Davies, Christophe; Bastiaens, Wim (Peer reviewer).

In: International Journal of Rock Mechanics & Mining Sciences, Vol. 42, No. 01, 01.2005, p. 109-125.

Research output: Contribution to journalArticle

Harvard

Bernier, F, Tsang, C-F, Davies, C & Bastiaens, W 2005, 'Geohydromechanical Processes in the Excavation Damaged Zone in Crystalline Rock, Rock Salt, and Indurated and Plastic Clays', International Journal of Rock Mechanics & Mining Sciences, vol. 42, no. 01, pp. 109-125.

APA

Bernier, F., Tsang, C-F., Davies, C., & Bastiaens, W. (2005). Geohydromechanical Processes in the Excavation Damaged Zone in Crystalline Rock, Rock Salt, and Indurated and Plastic Clays. International Journal of Rock Mechanics & Mining Sciences, 42(01), 109-125.

Vancouver

Bernier F, Tsang C-F, Davies C, Bastiaens W. Geohydromechanical Processes in the Excavation Damaged Zone in Crystalline Rock, Rock Salt, and Indurated and Plastic Clays. International Journal of Rock Mechanics & Mining Sciences. 2005 Jan;42(01):109-125.

Author

Bernier, Frédéric ; Tsang, Chin-Fu ; Davies, Christophe ; Bastiaens, Wim. / Geohydromechanical Processes in the Excavation Damaged Zone in Crystalline Rock, Rock Salt, and Indurated and Plastic Clays. In: International Journal of Rock Mechanics & Mining Sciences. 2005 ; Vol. 42, No. 01. pp. 109-125.

Bibtex - Download

@article{ca6ea55356914aef9a2cdc1a939df4e5,
title = "Geohydromechanical Processes in the Excavation Damaged Zone in Crystalline Rock, Rock Salt, and Indurated and Plastic Clays",
abstract = "The creation of an excavation disturbed zone or excavation damaged zone is expected around all man-made openings in geologic formations. Macro- and micro-fracturing, and in general a redistribution of in situ stresses and rearrangement of rock structures, will occur in this zone, resulting in drastic changes of permeability to flow, mainly through the fractures and cracks induced by excavation. Such an EDZ may have significant implications for the operation and long-term performance of an underground nuclear waste repository. Various issues of concern need to be evaluated, such as processes creating fractures in the excavation damaged zone, the degree of permeability increase, and the potential for sealing or healing (with permeability reduction) in the zone. In recent years, efforts along these lines have been made for a potential repository in four rock types—crystalline rock, salt, indurated clay, and plastic clay—and these efforts have involved field, laboratory, and theoretical studies. The present work involves a synthesis of the ideas and issues that emerged from presentations and discussions on EDZ in these four rock types at a CLUSTER Conference and Workshop held in Luxembourg in November, 2003. First, definitions of excavation disturbed and excavation damaged zones are proposed. Then, an approach is suggested for the synthesis and intercomparison of geohydromechanical processes in the EDZ for the four rock types (crystalline rock, salt, indurated clay, and plastic clay). Comparison tables of relevant processes, associated factors, and modeling and testing techniques are developed. A discussion of the general state-of-the-art and outstanding issues are also presented. A substantial bibliography of relevant papers on the subject is supplied at the end of the paper..",
keywords = "excavation damaged zone clay salt crystalline radioactive waste",
author = "Fr{\'e}d{\'e}ric Bernier and Chin-Fu Tsang and Christophe Davies and Wim Bastiaens",
note = "Score = 10",
year = "2005",
month = "1",
language = "English",
volume = "42",
pages = "109--125",
journal = "International Journal of Rock Mechanics & Mining Sciences",
issn = "1365-1609",
publisher = "Elsevier",
number = "01",

}

RIS - Download

TY - JOUR

T1 - Geohydromechanical Processes in the Excavation Damaged Zone in Crystalline Rock, Rock Salt, and Indurated and Plastic Clays

AU - Bernier, Frédéric

AU - Tsang, Chin-Fu

AU - Davies, Christophe

A2 - Bastiaens, Wim

N1 - Score = 10

PY - 2005/1

Y1 - 2005/1

N2 - The creation of an excavation disturbed zone or excavation damaged zone is expected around all man-made openings in geologic formations. Macro- and micro-fracturing, and in general a redistribution of in situ stresses and rearrangement of rock structures, will occur in this zone, resulting in drastic changes of permeability to flow, mainly through the fractures and cracks induced by excavation. Such an EDZ may have significant implications for the operation and long-term performance of an underground nuclear waste repository. Various issues of concern need to be evaluated, such as processes creating fractures in the excavation damaged zone, the degree of permeability increase, and the potential for sealing or healing (with permeability reduction) in the zone. In recent years, efforts along these lines have been made for a potential repository in four rock types—crystalline rock, salt, indurated clay, and plastic clay—and these efforts have involved field, laboratory, and theoretical studies. The present work involves a synthesis of the ideas and issues that emerged from presentations and discussions on EDZ in these four rock types at a CLUSTER Conference and Workshop held in Luxembourg in November, 2003. First, definitions of excavation disturbed and excavation damaged zones are proposed. Then, an approach is suggested for the synthesis and intercomparison of geohydromechanical processes in the EDZ for the four rock types (crystalline rock, salt, indurated clay, and plastic clay). Comparison tables of relevant processes, associated factors, and modeling and testing techniques are developed. A discussion of the general state-of-the-art and outstanding issues are also presented. A substantial bibliography of relevant papers on the subject is supplied at the end of the paper..

AB - The creation of an excavation disturbed zone or excavation damaged zone is expected around all man-made openings in geologic formations. Macro- and micro-fracturing, and in general a redistribution of in situ stresses and rearrangement of rock structures, will occur in this zone, resulting in drastic changes of permeability to flow, mainly through the fractures and cracks induced by excavation. Such an EDZ may have significant implications for the operation and long-term performance of an underground nuclear waste repository. Various issues of concern need to be evaluated, such as processes creating fractures in the excavation damaged zone, the degree of permeability increase, and the potential for sealing or healing (with permeability reduction) in the zone. In recent years, efforts along these lines have been made for a potential repository in four rock types—crystalline rock, salt, indurated clay, and plastic clay—and these efforts have involved field, laboratory, and theoretical studies. The present work involves a synthesis of the ideas and issues that emerged from presentations and discussions on EDZ in these four rock types at a CLUSTER Conference and Workshop held in Luxembourg in November, 2003. First, definitions of excavation disturbed and excavation damaged zones are proposed. Then, an approach is suggested for the synthesis and intercomparison of geohydromechanical processes in the EDZ for the four rock types (crystalline rock, salt, indurated clay, and plastic clay). Comparison tables of relevant processes, associated factors, and modeling and testing techniques are developed. A discussion of the general state-of-the-art and outstanding issues are also presented. A substantial bibliography of relevant papers on the subject is supplied at the end of the paper..

KW - excavation damaged zone clay salt crystalline radioactive waste

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_27226

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_27226_2

UR - http://knowledgecentre.sckcen.be/so2/bibref/3392

M3 - Article

VL - 42

SP - 109

EP - 125

JO - International Journal of Rock Mechanics & Mining Sciences

JF - International Journal of Rock Mechanics & Mining Sciences

SN - 1365-1609

IS - 01

ER -

ID: 371817