Fire in the Simplon Tunnel

Novel Redevelopment and Investigation of Causes

The almost 20 km long Simplon Tunnel between Switzerland and Italy was at the time the world’s longest rail tunnel when it was opened with 2 tracks in 1922 and complied with the latest standards (2 bores with changeover and electric operation). Extensive redevelopment and renovation work is to be carried out between 2012 and 2014. The damage resulting from the fire in mid-2011 resulting in a 5-month long closure of one track over half its length had to be repaired by the time the new timetable came into force (December 11, 2011). This aspect together with determining the cause of the fire will...

Related articles:

Issue 2014-06 Switzerland

Self-Rescue in the Simplon Tunnel

The 19.8 km long Simplon Tunnel (completed in 1922) between Bries (Switzerland) and Iselle (Italy) possesses two single-track bores with two sets of points at the centre of the tunnel and...

more
Issue 2012-07 Switzerland

Redeveloping the Simplon Tunnel

The 19.80 km long Simplon Tunnel between Brig/CH and Iselle/I possesses 2 single-track bores, which are connected by 46 cross-passages set roughly 500 m apart and 2 sets of points in the middle of the...

more
Issue 2012-05 Fire Protection Mortar

Adler Tunnel – Renovation with Fire Protection

Requirements The reinforced concrete bars and the rock anchor heads had to be protected for 60 minutes in accordance with the ISO 834 fire curve in the event of fire so that the tunnel inner shell...

more
Issue 2010-05 Austria

Lainzer Tunnel: Inner Shell made of fire- resistant, watertight self-compacting Concrete

The 12.8 km long Lainzer Tunnel represents the core section of the connecting route between the West, South and Danube railway in Vienna. The tunnel section starts at Vienna-Hadersdorf Station on the...

more
Issue 2013-02 UK/France

Eurotunnel: 4 SAFE Areas set up

The roughly 50 km long Eurotunnel opened in 1994 forms the rail link between Calais in France and Folkestone in the UK, in other words between the continent of Europe and the British Isles.  Up to...

more