Jet grouting applications in soft rocks: The Athens Metro case

Mihalis, IK; Tsiambaos, G; Anagnostopoulos, A

dc.contributor.author	Mihalis, IK	en
dc.contributor.author	Tsiambaos, G	en
dc.contributor.author	Anagnostopoulos, A	en
dc.date.accessioned	2014-03-01T01:20:42Z
dc.date.available	2014-03-01T01:20:42Z
dc.date.issued	2004	en
dc.identifier.issn	1353-2618	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16015
dc.subject	Geology	en
dc.subject	Grouting	en
dc.subject	Tunnels & tunnelling	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Acceleration	en
dc.subject.other	Construction	en
dc.subject.other	Geotechnical engineering	en
dc.subject.other	Grouting	en
dc.subject.other	Jet grouting	en
dc.subject.other	Rock tunnelling	en
dc.subject.other	Soft rocks	en
dc.subject.other	Rocks	en
dc.subject.other	construction	en
dc.subject.other	design	en
dc.subject.other	grouting	en
dc.subject.other	soft rock	en
dc.subject.other	tunneling	en
dc.subject.other	Athens [Attica]	en
dc.subject.other	Attica	en
dc.subject.other	Eastern Hemisphere	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Greece	en
dc.subject.other	Southern Europe	en
dc.subject.other	World	en
dc.title	Jet grouting applications in soft rocks: The Athens Metro case	en
heal.type	journalArticle	en
heal.identifier.primary	10.1680/geng.157.4.219.51831	en
heal.identifier.secondary	http://dx.doi.org/10.1680/geng.157.4.219.51831	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The Athens Metro is which is an underground project, which is constructed mainly in soft rock conditions (the Athenian schist formation), and has provided extensive experience for all stages of soft rock tunnelling: the geotechnical investigation, the design and the construction. The present work gives an overview of the geological and geotechnical aspects, which are related to the design of the Athens Metro, and places emphasis on the application of jet grouting techniques for the needs of the project. Features and limitations of the applied jet grouting techniques are examined with the aid of executed full-scale trial tests in two sites of the project, where anticipated extreme surface subsidence and severe over-break incidents needed to be adequately confronted. The results from these tests are appropriately evaluated, and conclusions that can be applied to similar geological and geotechnical conditions are derived. Finally, the efficiency of the applied jet grouting techniques, relative to the acceleration of TBM tunnelling operations and to the minimisation of surface settlements, is addressed, with reference to the detailed work progress records and to the settlement measurements obtained by a comprehensive monitoring programme.	en
heal.publisher	THOMAS TELFORD PUBLISHING	en
heal.journalName	Proceedings of the Institution of Civil Engineers: Geotechnical Engineering	en
dc.identifier.doi	10.1680/geng.157.4.219.51831	en
dc.identifier.isi	ISI:000225812200007	en
dc.identifier.volume	157	en
dc.identifier.issue	4	en
dc.identifier.spage	219	en
dc.identifier.epage	228	en