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Fracture-Fracture Interaction during Grouting
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics. (Jord och bergmekanik)
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Soil and Rock Mechanics. (Jord och bergmekanik)
2010 (English)In: Tunnelling and Underground Space Technology, ISSN 0886-7798, E-ISSN 1878-4364, Vol. 25, 199-204 p.Article in journal (Refereed) Published
Abstract [en]

Sealing of self-supporting underground constructions is often done with grouting or pre-grouting, most often with cementitious grouts. In order to achieve sufficient sealing, fine fractures must be penetrated long distances before the grout hardens. This is achieved with high injection pressures that rivals the in situ stress normal to the fractures. In this paper, the interaction of parallel fractures during high pressure grouting is modelled and the influence of the resulting dilation is discussed. Both linear and non-linear fracture stiffness is used in the modelling.

Place, publisher, year, edition, pages
2010. Vol. 25, 199-204 p.
Keyword [en]
Grouting; Fracture mechanics; Jacking; Non-linear fracture stiffness
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:kth:diva-9789DOI: 10.1016/j.tust.2009.11.003ISI: 000276288400001Scopus ID: 2-s2.0-77949540285OAI: oai:DiVA.org:kth-9789DiVA: diva2:132526
Note
QC 20100714Available from: 2008-12-19 Created: 2008-12-19 Last updated: 2017-12-14Bibliographically approved
In thesis
1. Behaviour of Rock Fractures under Grout Pressure Loadings: Basic Mechanisms and Special Cases
Open this publication in new window or tab >>Behaviour of Rock Fractures under Grout Pressure Loadings: Basic Mechanisms and Special Cases
2009 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH, 2009. 102 p.
Series
Trita-JOB PHD, ISSN 1650-9501 ; 1012
Keyword
Fracture mechanics, grouting, jacking
National Category
Building Technologies
Identifiers
urn:nbn:se:kth:diva-9787 (URN)
Public defence
2009-01-22, F3, KTH, Lindstedtsvägen 26, Stockholm, 10:00 (English)
Opponent
Supervisors
Note
QC 20100714Available from: 2008-12-19 Created: 2008-12-17 Last updated: 2010-07-15Bibliographically approved

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