Fracture-Fracture Interaction during Grouting
2010 (English)In: Tunnelling and Underground Space Technology, ISSN 0886-7798, Vol. 25, 199-204 p.Article in journal (Refereed) Published
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.
Grouting; Fracture mechanics; Jacking; Non-linear fracture stiffness
IdentifiersURN: urn:nbn:se:kth:diva-9789DOI: 10.1016/j.tust.2009.11.003ISI: 000276288400001ScopusID: 2-s2.0-77949540285OAI: oai:DiVA.org:kth-9789DiVA: diva2:132526
QC 201007142008-12-192008-12-192011-01-12Bibliographically approved