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 cross-passages at 500 m gaps. After renovating the tunnel section damaged by fire [1] work could start on the extensive refurbishment work section-by-section as from 2012. This work includes producing three additional cross-passages, modifying the existing cross-passages (new doors) and renewal of the control centre as well as the superstructure in the middle of the tunnel and above all, renewing structural...

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Issue 07/2012 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...

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Issue 02/2012 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...

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Issue 04/2009 Construction Equipment

Designed for a small Cross-Section

The workplace for the Caterpillar 321C KCR tunnel excavator is extremely small for the machine operator has to make do with a cross-section of only 20 m² for loosening material when driving the...

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Issue 03/2019

Rotterdamsebaan: Tunnel Driving and Cross Passages

Introduction The € 272 million Rotterdamsebaan is currently under construction between the Ypenburg intersection and the Centrumring in the Dutch city The Hague. It is being built under a Design &...

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Issue 07/2009 New Products

GBT: Fitting the Cross-Passages with raised Floors

The 2 single-track tubes for the 57??km long Gotthard Base Tunnel are linked by means of 178 cross-passages. They serve as technical rooms for the rail engineering technology and as escapeways in the...

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