Construction of Paramithia tunnels, Egnatia motorway, Greece

Lefas, ID; Dallas, A; Power, N; Georgiannou, VN

dc.contributor.author	Lefas, ID	en
dc.contributor.author	Dallas, A	en
dc.contributor.author	Power, N	en
dc.contributor.author	Georgiannou, VN	en
dc.date.accessioned	2014-03-01T02:43:11Z
dc.date.available	2014-03-01T02:43:11Z
dc.date.issued	2005	en
dc.identifier.issn	1353-2618	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31280
dc.subject	Grouting	en
dc.subject	Roads and highways	en
dc.subject	Tunnels and tunnelling	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Excavation	en
dc.subject.other	Grouting	en
dc.subject.other	Interlocking signals	en
dc.subject.other	Masonry construction	en
dc.subject.other	Road construction	en
dc.subject.other	Roads and streets	en
dc.subject.other	Road and highways	en
dc.subject.other	Tunnel and tunnelling	en
dc.subject.other	Vehicular tunnels	en
dc.subject.other	grouting	en
dc.subject.other	road construction	en
dc.subject.other	tunneling	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	Construction of Paramithia tunnels, Egnatia motorway, Greece	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1680/geng.2005.158.4.197	en
heal.identifier.secondary	http://dx.doi.org/10.1680/geng.2005.158.4.197	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	The paper describes in detail the construction process followed for site set-up, portal formation, tunnel excavation and primary lining of two tunnels in the presence of heavily fragmented cataclastic material. Excavation techniques used to secure the crown of the tunnel and to avoid extensive collapses included, inter alia, grouted forepoles of various types and density, down the hole drilling, the use of self-drilling anchors and fibre-reinforced shotcrete. The optimum set of measures was selected according to block size, interlocking of blocks and cohesion of each unit at the tunnel crown and sides. Attention is paid to the observational method applied, the treatment of special cases with novel techniques such as horizontal cement piles and the treatment of localised ground collapses, and to the production rates achieved during construction. A procedure applicable when mixed conditions at the tunnel face are encountered during excavation in tunnelling projects is proposed.	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.2005.158.4.197	en
dc.identifier.isi	ISI:000233181100003	en
dc.identifier.volume	158	en
dc.identifier.issue	4	en
dc.identifier.spage	197	en
dc.identifier.epage	206	en