Securing tunnel ceilings and fire dampers with Swiss Lock

Tunnel construction

The Situation

The Swiss Lock Anchor has been a household name in tunnel construction for more than 40 years and is specified by the Swiss Federal Office of Road Construction (ASTRA) in the Technical Manual Tunnel/Geotechnology as a proven system for anchoring suspended tunnel decks and fire hatches, among other things.

About the Swiss Lock

The Swiss Lock is a wedge-free steel anchor, developed and patented by B+BTec, for the most critical applications.

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Core drilling systems

Because every tunnel configuration is different, B+BTec designs and manufactures project-specific core drilling systems to carry out the drilling operations for installing the Swiss Lock Anchors as quickly and efficiently as possible.

Rotating Triple Spindle Core Drilling System for the Installation
of Swiss Lock Anchors in the Neuchâtel Tunnel (CH).

Benefits

  • Load Caracteristics Identical to Cast-in-Place Anchors
  • Removable for Inspection and Relocatable
  • Highest degree of reliability and predictability

References etc.

1982 – Sonnenberg Tunnel
Autobahn N2, Switzerland.
Anchoring of Suspended Deck
Swiss Lock M16, A4-70

1985 – Seelisberg Tunnel
Autobahn N2, Switzerland.
Renovation
Anchoring of Suspended Deck
Swiss Lock M16, A4-1.4401

1989 – Neuchâtel East Tunnel
A5 Motorway, Switzerland.
Renovation
Anchoring of Suspended Deck
Swiss Lock M20 and 24, A4-1.4401

1986 /1994/1997 – Gotthard Tunnel
Autobahn N2, Switzerland.
Anchoring of New Suspended Deck
Swiss Lock M16 and 20, A4-1.4401

2001 – Gotthard Tunnel
Autobahn N2, Switzerland.
Renovation of Ventilation System
Securing of Brackets for Fire Hatches
Swiss Lock M20, HCR1.4529

2001 – Gotthard Tunnel
Autobahn N2, Switzerland.
Renovation of Ventilation System
Securing of Brackets for Fire Hatches
Swiss Lock M20, HCR1.4529

2001/2002 – Gotthard Tunnel
Autobahn N2, Switzerland.
Installation of new Suspended Deck
Swiss Lock M20, HCR1.4529

2004/2005 – Kirchenwald Tunnel
Motorway A2/8, Switzerland.
Anchoring of Suspended Deck
Swiss Lock M24, HCR1.4529

2005/2006 – Loppertunnel
The A8 motorway, Switzerland.
Renovation of Suspended Deck
for Fire Hatches
Swiss Lock M16 & M20, HCR1.4529

2006 – San Bernardino Tunnel
A13 Motorway, Switzerland.
Renovation of Suspended Deck
Swiss Lock M24, HCR1.4529

2007 – Aeschertunnel
Motorway N20, Switzerland.
Renovation of Suspended Deck
Swiss Lock M20, HCR1.4529

2007 – Stägjitschugge Tunnel
Motorway H213, Switzerland.
Installation of Suspended Deck
Swiss Lock M20, HCR1.4529

2007/2010 – Seelisberg Tunnel
Autobahn N2, Switzerland.
Anchoring of Deck Elements
Swiss Lock M20, HCR1.4529

2007 / 2012 – Gotthard Street Tunnel
Autobahn N2, Switzerland.
Maintenance with replacement Swiss Lock anchors

2009 – Gubrist Tunnel
Motorway N1/38, Switzerland.
Anchoring of Deck Elements
Swiss Lock M20, HCR1.4529

2010 – Vedeggio – Cassarate Tunnel
Motorway PA 399, Switzerland.
Anchoring of Tunnel Deck
Swiss Lock M20, HCR1.4529

2011 – Bure Tunnel
Motorway A16, Switzerland.
Anchoring of Tunnel Deck
Swiss Lock M24, HCR1.4529

2014 – 2015 Seelisberg Tunnel
Autobahn N2, Switzerland.
Installation of new suspension rods for partition wall with SR™ M24ZS HCR1.4529

2016-2018 – Neuchâtel Tunnel
A5 Motorway, Switzerland.
Installation of SR™ M30, HCR1.4529

2018 Sachseln Tunnel
The A8 motorway, Switzerland.
Installation of SR™ M30, HCR1.4529