Tunnelbuilder Promoting the world's tunnelling industry to a huge qualified audience

View the Spanish Tunnelbuilder website View the Italian Tunnelbuilder website

Archive Search


France, - fr/19

Auvergne - Road

Auvergne - fr/19 Road Geological investigation by core drilling prior to invitations to tender for construction. More information from Service des Infrastructures Routieres, fax +33 471 455320. Sept 1999. Proposal for $75 million bi-directional Lioran road tunnel to be driven alongside and parallel to existing 1.4 km-long, 5.3 m-wide, 150 year-old tube connecting Aurillac and Clermont Ferrand. Old tunnel will provide service and escape route for new tunnel. Elevation 1,100 m. Award pending of contract for geological investigation. Visit http://ted.eur-op.eu.int June 2000. Coreis and Foraco carrying out geological survey of existing 1.4 km-long, 153 year-old tube to establish alignment of proposed $65 million second tube. Visit www.foraco.fr 30/01. Preinformation notice for construction of the new Lioran tunnel, a two-way dual-lane 1,515 m-long 9 m-wide carriageway plus two 1 m-wide pavements. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=026634-2003, OJ S 32, or contact DDE du Cantal, Aurillac, fax +33 471455304 or 96. E-mail Tunnel-du-Lioran.srt.dde-Cantal@equipement.gouv.fr. Read E-News Weekly # 45. 08/03. Restricted procedure, deadline 4th April, 2003 for construction of the new Lioran tunnel on trunk road RN 122, a single bidirectional tube, length 1,455 m, width 9 m with two lanes and clearance 4.55 m. Two full-section drives (100 sq m) using drill/blast. Umbrella vaults at portals, fiber-reinforced shotcrete and rockbolts, HEB steel arches with sheet plates and concrete or with shotcrete. Final formwork concrete lining. Also drilling of four cross connections to the existing tunnel. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=043308-2003, OJ S 50, or contact DDE du Cantal, Aurillac, fax +33 471455304. 12/03. Preinformation notice for construction of the new 1,515 m-long Lioran tunnel, two-way dual-lane 9 m-wide carriageway plus two one m-wide pavements. This is a re-tender. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=113796-2003, OJ S 127, or contact DDE du Cantal, Aurillac, fax +33 471455304. E-mail Tunnel-du-Lioran.srt.dde-Cantal@equipement.gouv.fr. Read E-News Weekly 45/2002. 29/03.Open call for bids, deadline 1st September, 2003 for construction of a 1,515 m-long tunnel, two-way dual-lane 9 m-wide carriageway. Cross section 100 sq m. Drill/blast from two drives, fibre-reinforced shotcreting, rockbolting, HEB steel arches, concrete formwork. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=124750-2003, OJ S 138, or contact DDE du Cantal, Aurillac, fax +33 471455304. E-mail Tunnel-du-Lioran.srt.dde-Cantal@equipement.gouv.fr. Read E-News Weekly 45/2002. 31/03.Preparatory work is under way at the Lioran Pass on road RN 122 prior to starting excavation of a 1,455 m 11 m-wide single-tube tunnel. The portals are built by Forézienne d'Entreprises et de Terrassement. The one on the Aurillac side (contract M1) is completed while building of the second one on the Murat side (contract M2) is just beginning. The tunnel (contract M3) will be bored by a JV between Spie Batignolles TPCI, Campenon Bernard and Chantiers Modernes for EUR41.2 million. Two drives, the second to start six months after the first one awaiting completion of the second portal. Civil engineering to take two years, whereof 14 months for excavation. With the two underground ventilation stations, the tunnel will be 1,515 m in length. Minimum height: 4.5 m. Gradient: 3.6%. Contract also includes four 2.5 m-wide x 2.85 m-high cross passages (560 m in total) to the existing tunnel.Excavation of top heading first under a canopy of steel pipes at both ends, with steel arches as support. Then full-face excavation using drill/blast. Cross section comprised between 90 and 100 sq m depending on geology and the support to be implemented. Two fully computerized three-boom jumbos will be used, to be chosen in the fleet of the contractors.Support with 4 m-long resine rebars in the areas with water ingress or cement grouted rebars and Atlas Copco Super Swellex Mn 16 rock bolts as well as 10-15 cm shotcrete layer. Formwork concrete for final lining, 50 cm-thick at the walls and 40 cm-thick at the crown. Visit www.swellex.comVolcanic geology composed of trachytes, trachyandesites and highly heterogeneous pyroplastic layers with compressive strength varying from 0 to 120 MPa. Visit www.sb-tpci.fr, www.cbconstruction.fr and www.cantal.equipement.gouv.fr 11/04.Open call for bids, deadline 20th September, 2005 for transversal ventilation equipment for the 1.5 km Lioran tunnel on road RN 122. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=154725-2005, OJ S 155, or contact DDE du Cantal, Aurillac, fax +33 471455396 or 565591841. E-mail dde-cantal@equipement.gouv.fr 36/05.Open call for bids, deadline 31st October, 2005 for electrical equipment for the 1.5 km Lioran tunnel on road RN 122. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=177071-2005, OJ S 179, or contact DDE du Cantal, Aurillac, fax +33 471455386 or 565591841. E-mail dde-cantal@equipement.gouv.fr 38/05.SEITHA secured a contract worth EUR1.5 million (VAT not included) to install equipment in the 1.5 km Lioran tunnel. This includes transversal ventilation equipment and locks, atmosphere control, safety of the niches and anti-fire gates and bulkheads. Work to begin immediately for end in early 2007. Visit www.seitha.fr and www.cantal.equipement.gouv.fr 52/05-01/06.Open invitation to tender, deadline 13.03.2009, for installation of steel gantries at the portals of the new 1.5 km-long Lioran tunnel on highway Rn 122 in the communities of Saint-Jacques des Blats and Laveissiere (15). Work to be completed by September, 2009. For construction history of this project, visit tunnelbuilder archive fr/19. Specs and docs from Gerard Taureau at DRE Auvergne, tel +33 473431-587, fax -909, visit www.marches-publics.gouv.fr. http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=029730-2009 06/09.