Chapter
Apr 26, 2012
QA/QC for Jet Grouting in Deep Boston Blue Clay: Central Artery/Tunnel Project
Publication: Grouting and Ground Treatment
Abstract
An extensive pre-construction test program was performed to develop installation parameters that would result in overlapping jet grout columns with diameters of at least 1.5m. The columns were to be installed through approximately 40m of fill, organics and clay deposits; and 0.3m into the underlying glacial deposit. This paper describes the technical difficulties encountered during the test program; the different methods adopted to assess the effectiveness of the jet grouting; and the QA/QC criteria eventually adopted for installing and accepting the in situ grout columns.
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Published In
Grouting and Ground Treatment
Pages: 236 - 247
Copyright
© 2003 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Justice J. G. Maswoswe
M.ASCE
Principal Professional Associate, Parsons Brinckerhoff Quade & Douglas, Inc.; Central Artery/Tunnel Project, 185 Kneeland Street, Boston, MA
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