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Date 2000 (1) 2001 (1) 2002 (2) 2003 (4) 2011 (3) 2012 (2) 2022 (2)

Necessity fosters innovation
17 March, 2022
Whether for large- or small-diameter tunnels, utility investment calls for more underground methods, ushering in several innovative techniques in the process. Patrick Reynolds reports

New method makes long horizontal drilling possible
03 February, 2022
Electricity transmission system operator TenneT, together with contractor NRG and subcontractors Denys and Kouwenberg, have drilled an electricity cable almost 2km into the ground using a new tunnel drilling method.

Eindhoven station contract awarded
10 October, 2012
ProRail has awarded a contract for the construction of the new station tunnel in Eindhoven, Netherlands, worth EUR 32M (USD 41M). Heijmans won the contract in a European tendering process, the company revealed yesterday.

The river crossing
26 July, 2012
At the northern end of the project an immersed tube continues the underground line beneath the Central station and across the river Ij. technical journalist Adrian Greeman reports from site

Send in the divers
10 November, 2011
The expertise, ingenuity and bravery of commercial divers working with tunnels is unsurpassed. The services of divers can be called upon during normal operations as well as emergency situations, with each task placing its own demands on men and equipment. Maurice Jones, with Nicole Robinson, has been checking up on what is needed and why

Sinking a station
19 October, 2011
An extraordinary variation on the immersed tube method, combined with innovative foundation works, has been used to take the Amsterdam north-south metro line underneath the 19th century Centraal Station, reports Adrian Greeman

First metro element floated under Amsterdam Station
15 July, 2011

International Heijmans
01 May, 2003

Amsterdam tunnel preparations
01 March, 2003

Dutch merger
20 February, 2003

Dutch awards
01 January, 2003

Green light for Amsterdam
01 November, 2002

Westerschelde west breakthrough
01 March, 2002

In at the deep end
05 January, 2001
The Netherlands has adopted large-diameter TBM work for soft ground tunnels with great enthusiasm. No where is this more evident than in the Westerschelde tunnel project where modern technology is set to open the relatively isolated Zeeuwsch-Vlaanderen province. However, such a challenging project has not been without its snags.

Getting into gear in Holland
05 May, 2000