Tunnel go-through Ceremony HZMB China

19 July 2017

On 7 July 2017 a “Tunnel Go-through Ceremony” was organized by our Client HZMBA to celebrate the fact that the tunnel link between both artificial islands had become reality. TEC was invited for this event. Managing Director Hans de Wit and Project Manager Ying Li were honoured to be present. Many were impressed by the […]

Marieholm tunnel: first tunnel element floated out

19 May 2017

In the weekend 29-30 April 2017 tunnel element no. 1 (with a length of approx. 100 m) was floated out of the construction dock (building pit on Marieholm Side) into the Göta Alv River. The 25,000 tonne concrete element took seven months to construct in dry dock. The building pit has been prepared for the […]

Closure joint of the HZMB Immersed Tunnel installed

8 May 2017

On 2nd May, 2017 the closure joint (final section) of the Hong Kong-Zhuhai-Macao Bridge (HZMB) Immersed Tunnel was installed. The world’s largest crane vessel “ZhenHua 30” (SWL 12.000 tons, built in China) was used by the contractor, CCCC JV Team from China, to place the 6000 tons closure joint structure.   On behalf of TEC (design […]

TEC Experts have successfully led the immersion operation of the Harlingen Aqueduct

6 April 2017

Gina de Rooij (Immersion Commander) and Arjan Luttikholt (Assistant and Immersion Engineer) were key experts in the immersion operation of the N31 Aqueduct in Harlingen, Friesland, The Netherlands. Upon special request of main contractor Ballast Nedam, in the last 6 months Gina and Arjan created a team of specialists that under high time pressure successfully […]

Ramboll, Arup & TEC consortium wins 114 million Euro consultancy contract for the Fehmarnbelt tunnel

23 March 2017

Ramboll, Arup and TEC have won the tender for client consultancy on the upcoming Fehmarnbelt fixed link between Denmark and Germany. The 18km combined road and rail link will be the longest immersed tunnel in the world.   From left to right: Sandra Akmansoy : Ove Arup & Partners International Hans de Wit : Managing […]

ShenZhong Link

15 June 2016

This video is part of TEC’s proposal for the International Design Competition Shen-Zhong Link. The People’s Government of the Guangdong Province plans to build a link between Shenzhen and Zhongshan crossing the Pearl river delta. After a carefully planned study the Advanced Work Office held an International Design Competition in which competitors were challenged to […]

Meet TEC at World Tunnel Congress, San Francisco, 22-28 Apr 2016

20 April 2016

Meet our experts at WTC 2016 where you can learn more about our latest initiatives in tunnelling, new technologies and exciting projects we are working on around the world. Tunnel Engineering Consultants (TEC) will be present at the Joint Specialists Immersed Tunnels booth #1014 at the North Exhibit Hall. The annual World Tunnel Congress (WTC) […]

Lecture Offshore Immersed Tunnels

22 February 2016

KIVI Engineering Society invited TEC to give a lecture about Offshore Immersed Tunnels. Description Recent tunnel projects have shown that immersed tunnels are not only feasible in waterways, but that they can be competitive to long span bridges or bored tunnels under more challenging circumstances. Immersed tunnels have been constructed successfully in water depths up […]

Closure joint formwork successfully installed in Coatzacoalcos

20 January 2016

During the last 10 days the Marine Joint Venture, consisting of Volker Construction International and Dragamex (Boskalis), have installed the closure joint formwork in the immersed tunnel in the port of Coatzacoalcos, Mexico. The closure joint was successfully emptied on the 14th of January. The operation started at around 11am and the doors in the […]

TEC at World Tunnel Congress Croatia

4 June 2015

TEC participated in the 41st General Assembly and Congress of International Tunneling Association ITA – AITES which was held in Croatia from May 22 to 28. TEC took the opportunity to promote immersed tunnels which suits the main theme of the Congress which was ‘Promoting Tunnelling in See region’. Our immersed tunnel experts participated in the ITA Working […]