SELI signed a contract with JV Salini Costruttori Spa, Tecnimont Spa and Icop Spa for excavation of a new section between Conca d'Oro and Jonio stations, on line B1. This includes excavation of a 950 m-long tunnel, crossing of the 150 m-long Jonio station, and supply and placement of 40 cm-thick precast concrete segments. The Herrenknecht EPB TBM, which has a diameter of 9.79 m and a total length of 80 m, will be driven from the Conca D'Oro station box. The alignment is through river deposits consisting of gravel in silty sand matrix characterized by poor geotechnical properties, with the groundwater table 17 m above the tunnel crown. The tunnel will be internally lined with precast concrete segments, 40 cm-thick and 1.4 m-long, in a 7+1 configuration. It will have an internal diameter of 8.65 m and an external diameter of 9.45 m. Excavation will begin in April, 2010. For more visit tunnelbuilder archive it/31 and here. Visit www.selitunnel.com and www.herrenknecht.com. 04/10.

The 15.62 m-diameter, 4,500 t, 12,000 kW Herrenknecht EPB is under assembly at site for a July, 2011 start on the 2.5 km-long Sparvo tunnel first drive north. The machine is the largest ever built, and features a 1.6 m-diameter screw conveyor to handle muck from its 16-channel intake. The 70 cm-thick concrete segments weigh up to 16 t apiece. The conveyor system is from H+E Logistiks, VMT supplied the navigation system, and Euroform supplied the segment formwork. For 10-year project history visit tunnelbuilder archive it/21. More from www.herrenknecht.com/news/press-section/gigantic-tbm-for-italy.html. 22/11.

Two 800m x 8m-diameter tunnels to be driven by EPB and one 300m by conventional methods for Italferr. December 1998.   $40 million. Joint venture of Alpine Bau, Coopsette and CCC to construct 1.9 km x 38.5 m2 segmentally-lined tunnel between Roma Trastevere and Roma St Peter stations on Viterbo line using EPB. Single bore of 7 m i.d. Quattro Venti underground station at halfway position included in the contract. August 1999.  Construction of $29 million, 2.2 km-long Quattro Venti single bore, twin-track tunnel awarded to Astaldi/Impregilo for July, 2001 start. Herrenknecht 7.9 m-diameter EPB will install precast segmental lining on drive from Trastevere to San Pietro in tuff, silt-clay alluvials, and gravel with 2-6 m cover and up to 3.5 bar water pressure. Visit www.rocksoil.com and www.herrenknecht.com 17/01.

  Greenline (Lebanon) and Kuwaiti Brueckner Construction using numerous Herrenknecht AVN machines from 500 mm to 1,200 mm to drive up to 1 km/month on different projects. Contact through www.herrenknecht.com April 2000.

CMC (Ravenna), engineering consultants for the Theun Hinboun project, have awarded the precast segment mould contract to Euroform Srl, a subsidiary of Herrenknecht located in Gessate, Milan. Euroform will supply in June, 2009 four sets of wheeled vibrated moulds and a segment production carousel. Each precast concrete ring comprises six segments, with the invert segment incorporating the housing for the TBM back-up rails. Each ring is 1.6 m-wide with 6.9 m ID and 7.46 m OD. The carousel will produce 4-5 segments/hour.Visit www.cmc.coop, www.euroformsrl.it and www.herrenknecht.com 13/09.

Funding sought for a huge tunnel project to keep Kuala Lumpur flood-free by chanelling excess river water to the sea off Klang. Proposed project currently in the conceptual stage. Tunnel would start from Jalan Jelatek, bypass the city, head to Petaling Jaya before reaching the sea. Completion targeted for 2004 or 2005. Pipe jacking method to be used. 48/01. Gamuda is about to commence work on the RM2.5 billion Stormwater Management and Road Tunnel (Smart) project aimed at alleviating some of the major floods in the Kuala Lumpur city area.In collaboration with MMC Engineering Group, Gamuda is undertaking the design, engineering, procurement, construction, installation, testing and commissioning of the integrated bypass tunnel and motorway. Visit www.gamuda.com.my 51/02. The SMART (Stormwater and Management Road Tunnel) project is a 9.7 km single-bore tunnel to divert Ampang river waters which cause stormwater overflow during the rain season. The tunnel will head for south of Kuala Lumpur following Jalan U Thant, Jalan Tun Razak, Jalan Chan Sow Lin and the Seremban Highway parallel to the old military airport. Wayss & Freytag and BAM NBM of the Netherlands won a 5.4 km section of it for €83 million from the client, contractors Malaysian Mining Corp. (MMC) and Gamuda. A Herrenknecht Mixshield TBM will be used, cutterhead diameter 13.21 m, inner diameter 11.83 m, concrete segments 500 mm thick. The TBM is under manufacturing at the moment for arrival in Malaysia scheduled for around Christmas. Delivery in Kuala Lumpur is planned for end-January. A three-month pre-assembly period will follow prior to excavation start expected in mid-May 2004. In the central part of the tunnel is a 2.4 km-long stretch with a dual purpose for flood mitigation and road traffic on 2 levels. The third level will accomodate utilities, ventilation, etc. The 5.4 km tunnel section awarded to Wayss & Freytag and BAM NBM includes 700 m of dual function. Visit www.wf-ingbau.de and www.bamnbm.nl The remaining 1.7 km for double function is part of the 4.3 km north tunnel section that will be built by Malaysian Mining Corp. (MMC) and Gamuda using a second Herrenknecht Mixshield TBM, also under construction. Visit www.mmc.com.my and www.gamuda.com.myTwo junction boxes are at either end of the dual-purpose 2.4 km stretch with 2 ventilation shafts in between. Kecom Sdn Bhd, the Malaysian branch of KEC Ltd of Korea, is one of the tenderers negotiating the supply of precast concrete segments worth RM100 million for the project. Visit www.herrenknecht.com 24/03.ACP Industries (ACPI) said its unit Associated Structural Concrete Sdn Bhd has won a RM51.2 million contract from Wayss & Freytag to supply precast concrete segmental lining for the stormwater management and road tunnel (SMART) project. The contract is for about 33 months. 32/03.Tuah, SMART's first 13.21 m-diameter slurry TBM, has begun boring on 4th June. Tuah spans about 70 m in length and weighs a hefty 2,500 tonnes. The Herrenknecht machine will be boring towards the north of the tunnel alignment, ending at the holding basin in Kampung Berembang. The name Tuah was selected through a naming competition launched in March. 95% of the tunnelling will be done using two TBMs with the rest by way of cut-and-cover method. The yet-to-be named second TBM is being assembled in the launch shaft, for boring start in August. The SMART (Stormwater and Management Road Tunnel) project is a 9.7 km single-bore dual-purpose tunnel. Visit www.smarttunnel.com.my and www.herrenknecht.com 27/04.

Herrenknecht Iberica SA from Madrid secured the EUR 296,400 contract, excluding VAT, for the excavation feasibility study for the fixed link across the Gibraltar Strait between Spain and Morocco,. Funded by the European Union - Next Generation EU (Recovery and Resilience Facility -RRF funds). Contact Ineco-Comité de Dirección, Madrid,email ofertas@ineco.com, tel + 34 91 4521200. Visit https://contrataciondelestado.es/. Ref.n. 20240216-00100. 34/24.

  Part of Betuwe line (see nl/11). Tubecon consortium will start construction in April, 2000 using Herrenknecht 10 m-diameter EPB for 2 x 4 km bores in clays and peaty layers. Overall length of tunnel 8 km to include 2 km-long cut-and-cover sections at each end. Slightly heavier segments than elsewhere on Betuwe line, but 8.65 m inside diameter similar to Botlek to accommodate stacked container traffic. Visit www.herrenknecht.com February 2000.  Herrenknecht advises that its 9.785 m-diameter Mixshield S-150 will be equipped with the revolutionary sonic software probing (SSP) system, a seismic forecasting process that uses sensors installed to the cutting wheel to emit soundwaves into the strata ahead of the machine and receive the reflected signals. The sensors are countersunk into the steel of the spokes and are designed to withstand pressures of up to 6 bar. The data is processed onboard by three high-performance PCs which reproduce a 3-D screen image of the ground up to 40 m ahead. The TBM is being assembled at the launch shaft and boring is scheduled to start in May, 2000. The reception shaft at Hendrik-Ido-Ambacht is still under construction. Contact through www.herrenknecht.com March 2000.

  Twin tube 6.6 km-long undersea highway tunnel using two 11.3 m-diameter Herrenknecht Mixshields from an artificial polder at Terneuzen on the south side to 20 m-deep concrete caissons at Ellewoutsdijk on the north side. Face supported by water/bentonite mix and all spoil is pumped to surface separation plant. Much of the tunnel will be in the very dense Boom clay which varies in thickness between eight and 38 m in the middle of the Schelde, but sand above and below this stratum is of variable quality, sometimes containing glauconite. At deepest point tunnel is 65 m below sea level, and machines are designed to work up to 8.5 bar. Two pressure chambers on each TBM allow transfer of divers by transport capsule from a pressurised habitat at surface to the face for continuous operations, saturation diving over long periods if necessary. Interlocking gasketed lining of 7 segments and key. 26 cross-passages planned at 250 m intervals where five-ring special sections are being installed on advance and freezing will be necessary. Service duct installed at floor level and invert backfilled on advance. Rear 160 m of TBM gantry supported by roller brackets installed to sidewall. Two Schoma locos required on each material train to cope with 4.5% gradient at entrance ramp. TBMs have advanced 600 m in east tube and 500 m in west tube. Contracting jv KMW are to design, construct and maintain tunnel for first 10 years of operation. Opening date March, 2003. Visit www.westerscheldetunnel.nl for further information. February 2000.The record-breaking saturation diving operation conducted at 6.5 bar pressure to install 12 larger profile cutters on each of the TBMs has been successful and both machines are boring again. The changeover took six working days for each machine, and 11 days including decompression. See Hall of Fame entry or visit www.herrenknecht.de August 2000.   KMW reports both TBMs 2 km into 6.6 km drives following recent installation of profile cutters by divers when excessive pressure in waterbearing sands caused distortion to shields. Now advancing at 14 rings/day in Boom clay without difficulty. Visit www.westerscheldetunnel.nl and www.herrenknecht.de December 2000.   The two Herrenknecht Mixshields excavating the Westerschelde tunnel are reported to break record after record. 'Sara', the machine boring the east tube, has recorded an advance of 32 metres in just 24 hours. Only 724 metres are still to go to reach Zuid-Beveland. 'Neeltje Suzanna' only has to bore 210 metres and is expected to arrive in Ellewoutsdjik at the end of January, 2002. Visit www.westerscheldetunnel.nl and www.herrenknecht.com 03/02.   'Sara', the second Herrenknecht Mixshield has completed on 12th February the east bore of the Westerschelde tunnel project following 'Suzanna' which reached its final destination on the west tube three weeks before. See Hall of Fame entry or visit www.herrenknecht.com and www.westerscheldetunnel.nl 09/02.  Her Majesty Queen Beatrix of the Netherlands inaugurated the Dutch longest road traffic tunnel on 14th March. The Zeeuwsch Vlaandren province is cut off from the other parts of the Netherlands by the Westerschelde port entrance to Antwerpen. The new link will provide a faster and more economical route for around 27,000 vehicles a day between Ellewoutsdijk in Zuid-Beveland and Zeeuwsch Vlaanderen near Terneuzen. Central Zeeland and Zeeuwsch Vlaanderen will be permanently linked together. The tunnel is a 6.6 km-long undersea highway tunnel consisting of two tubes, each with two 3.5 m-wide lanes, with 26 cross passages every 250 m. The builders are KMW (Kombinatie Middelplaat Westerschelde), a JV of Philipp Holzmann, Wayss & Freytag, Franki, BAM Infrabouw, Heijmans and Voormolen. 'Sara' and 'Suzanna', two Herrenknecht Mixshields, 11.3 m in diameter, started from an artificial polder at Terneuzen and bored through to 20 m-deep concrete caissons at Ellewoutsdijk. The bulk of the tunnel is running at up to 60 m below sea level, making it the deepest ever to be driven. Both tubes have a concrete lining of 53,000 segments. The €726 million tunnel is open to road users since 15th March. Visit www.westerscheldetunnel.nl and www.herrenknecht.com 12/03.

    First tube of 1.74 km Botlek tunnel nearly complete with Herrenknecht 9.75 m-diameter foam-assisted EPB reaching reception pit on 3rd February, 2000 after trouble-free run with no cutter changes. Spoil from auger can be removed by belt or twin Putzmeister pumps according to consistency. All spoil is mixed with water behind the machine and pumped to surface for separation in ponds and local disposal. Segment moulds for 7+1 1.5 m x 400 mm-thick gasketed rings engineered by Wayss & Freytag who are a member of the BTC contracting consortium. Best week of 72 rings when operating 24 h/day for three weeks beneath waterway. Best 24 h day of 17 rings. TBM will exit through prepared soft concrete block under 30 m groundwater pressure and will then be dismantled and taken back to start shaft for second run. First use of EPB in Netherlands. Visit www.herrenknecht.com or www.betuweroute.nl or contact info@bnbw.ballast-nedam.nl February 2000.