To be driven in opposite directions from two shafts by 12.3 m-diameter Herrenknecht TBMs: one a hard rock,
the other a dual-mode Mixshield slurry machine. First machine launched at Allmend Brunau shaft towards Thalwil, Sept 1998. 9.4 km long to connect with proposed Gotthard AlpTransit tunnel at Nidelbad. Contracting jv of Prader, Locher, Wayss & Freytag. Nov 1998.
Two TBMs now at work, with 12.29 m-diameter south drive machine 3 km into its 5.6 km drive having recorded a best day of 39.1 m or 23 rings while completing 673.2 m of tunnel in June, 1999. First 330 m of north drive being undertaken by second TBM in rock mode using disc cutters and conveyor belt. Following 150 m will be in slurry mode using hydraulic spoil pipelines to surface separation plant. Machine will then complete the bulk of the 2.7 km drive in rock mode in molasse. The final 700 m will be in soft mixed ground with extra drag picks on the cutterhead. Lining comprises seven bolted segments and key, 12.04 m outside diameter and 11.44 m internal diameter. Aliva pumps are used at both TBMs to pump pea gravel into the annulus. Segments are transported by converted Kiruna trucks. There are vehicle turntables behind each TBM. Zimmerberg will connect with AlpTransit Gotthard in a continuous tunnel, possibly using the same machines. Sept 1999.
South section TBM driving 5.6 km from Allmend Brunau to Nidelbad in typical Sweetwater molasse has passed the halfway point and completed 673.2 m in June, 1999 with a best day of 39.1 m or 23 rings. Conveyor capacity is 1,100 t/h using 1 m-wide belt at 2.2 m/sec. Major constraint is the rate at which spoil can be removed from site because only 13 trains/day can be handled. However, 100,000 t surface stockpile will smooth rockflow. First 330 m of 2.7 km north drive was in hard rock, then TBM was converted to slurry mode for 150 m following which it will revert to hardrock configuration. Visit www.herrenknecht.com November 1999.
Rail 2000 Thalwil junction and 900m/1,300m branch tunnels completed using drill/blast to connect with advancing cut and cover. TBM face in main tunnel left ready for AlpTransit drive to Nidelbad when finances are available. Herrenknecht TBMs completed drives in both directions from Allmend Brunau shafts and removed for storage. 27/02.
Basler & Hofmann AG Ingenieure Planer und Berater from
Zurich secured the EUR642,536 Euro, excluding VAT, for the concept study for
the 11 km Zimmerberg II base tunnel and the Meilibach tunnel. Duration of the contract
is from 01.07.2018 to 31.03.2020. For
further information http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=1020197.
Contact SBB, attn Jogchem Dieleman, Lucerne, email jogchem.dieleman@sbb.ch. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=229993-2018.
Ref.n. 1149877. 22/18.
Open invitation to tender, deadline 16/03/2022, for general management and coordination of technical services - Pre-project phase – for the Zimmerberg 2 base tunnel, Nidelbad-Litti. The contract includes the Nidelbad widening work, the ZBT2 tunnel system with two 10.8km single-track tunnels and the cross connections, as well as the Litti connection with the tunnel portals, the connection to the existing track network and the turnaround facility. For further information http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=1237183 (German) and/or http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=1237201 (French). Tenders must be sent to CFF, attn Reto Braegger, Olten, email reto.braegger@sbb.ch. Duration of the contract is from 01/06/2022 to 31/12/2023. Contact CFF, attn Benjamin Karli, Olten, email benjamin.karli@sbb.ch. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=016642-2022. Ref.n. 1161142. 03/22.
Switzerland-Olten: Engineering services
Contract notice – utilities
Legal Basis:
Directive 2014/25/EU
Section I: Contracting entity
I.1)Name and addresses
Official name: Chemins de fer fédéraux suisses CFF Infrastructure, Projets d'aménagement et de renouvellement, Région Centre
Postal address: Bahnhofstrasse 12
Town: Olten
NUTS code: CH0 Schweiz / Suisse / Svizzera
Postal code: 4600
Country: Switzerland
Contact person: Benjamin Karli
E-mail:
benjamin.karli@sbb.ch
Internet address(es):
Main address:
https://www.simap.ch
I.6)Main activity
Railway services
Section II: Object
II.1)Scope of the procurement
II.1.1)Title:
Planificateur général - Phase d’avant-projet - Tunnel de base du Zimmerberg 2, Nidelbad-Litti
II.1.2)Main CPV code
71300000 Engineering services
II.1.3)Type of contract
Services
II.1.5)Estimated total value
II.1.6)Information about lots
This contract is divided into lots: no
II.2)Description
II.2.3)Place of performance
NUTS code: CH0 Schweiz / Suisse / Svizzera
II.2.6)Estimated value
II.2.7)Duration of the contract, framework agreement or dynamic purchasing system
Start: 01/06/2022
End: 31/12/2023
This contract is subject to renewal: yes
Description of renewals:
Les dates indiquées ci-dessus sont des dates approximatives. Le calendrier sur lequel repose l'appel d'offres est déterminant.
Section IV: Procedure
IV.2)Administrative information
IV.2.2)Time limit for receipt of tenders or requests to participate
Date: 11/03/2022
IV.2.3)Estimated date of dispatch of invitations to tender or to participate to selected candidates
IV.2.4)Languages in which tenders or requests to participate may be submitted:
German, French, Italian
Section VI: Complementary information
VI.5)Date of dispatch of this notice:
07/01/2022