Fracture dilation during grouting
2009 (English)In: Tunnelling and Underground Space Technology, ISSN 0886-7798, Vol. 24, 126-135 p.Article in journal (Refereed) Published
Sealing underground excavations from ingress of water constitutes a large part of both the cost and the risk for many infrastructure projects. In this paper we present a mechanical model for the rock mass response when grouting hard jointed rock. The model predicts a stiff and a non-stiff behaviour and a transition between them that is dependent on the relationship between the grouting pressure and the in situ stress conditions. The predictions are consistent with previously published measurements and explain grouting behaviour that has been difficult to model with previous methods.
Place, publisher, year, edition, pages
2009. Vol. 24, 126-135 p.
Grouting; Contact pressure; Fracture mechanics; Jacking
IdentifiersURN: urn:nbn:se:kth:diva-9788DOI: 10.1016/j.tust.2008.05.004ISI: 000263423700002ScopusID: 2-s2.0-58249094409OAI: oai:DiVA.org:kth-9788DiVA: diva2:132524
QC 201007142008-12-192008-12-192010-12-06Bibliographically approved