Copenhagen-Ringsted Highspeed Rail (TP4), DK | 2014

The Cutting-Edge project for building Denmark's first Dual-Track railway for high-speed trains in Copenhagen

Banedanmark - a state owned government agency under the Danish Ministry of Transport, responsible for the maintenance and traffic control of the Danish railways - is in the process of building a new dual track railway between Copenhagen and Ringsted via Køge. 

The proposed Copenhagen to Ringsted Railway Line covers a total distance of approximately 60 km and passes through 10 municipalities with the aim to provide extra capacity, faster trains and more flexible time tabling along this vital railway corridor. This new railway line will connect with the existing railway system in Copenhagen and Ringsted. It will run through densely populated and trafficked areas as well as historical, cultural and recreational locations.

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Typical cross section - Location B
Highspeed railway line
Copenhagen-Ringsted PER
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The New Line Copenhagen-Ringsted assumes international importance as part of the Trans-European Network that will link Scandinavia and the rest of Europe. The railway is also a significant part of the freight corridor from Northern Sweden to Northern Italy. The opportunities to expand freight traffic – and to improve conditions for international travellers – will increase after the opening of the Fehmarnbelt Fixed Link and the associated upgrading and expansion of the line from Ringsted to Rødby. 

The project was split into Tender Packages (TP). TP4 – tendered as a Design and Build contract - is one of the main civil works contracts. Among other infrastructure, it entails the constuction of two cut & cover tunnels of 1,270 m, 1,310 m of open trough, railway and pedestrian bridges, pumping stations and drainage installations.

Fire protection for the sheet piles consisted of fire insulation material CAFCO® FENDOLITE® sprayed directly on the sheet piles. The system, used in Denmark for the first time, consists of 2 mm plastic net and two layers of 10 mm and 25 mm respectively of fire insulation material sprayed, after the sheet piles have been thoroughly cleaned with high pressure.

This innovative solution was tested by Banedanmark in order to verify compliance with current applicable legislation. A further advantage of this solution is that as the insulation materials layers have a small thickness, more room is made available within the tunnel cross section for equipment installation.

The sheet piles were driven with a PM26 piling rig and a Müller MS 40VM vibratory hammer. 

Timely delivery was also paramount for TP4 as for all TP projects, that proved to be a real logistics challenge due to the high tonnage that had to be delivered in a short period of time. In addition, orders for all TP projects often included various lengths of the same section in small steps, e.g. 10.1 m, 10.5 m, 10.9 m, hence adding to the challenge for the supply chain. This altered our ideas of ways of delivery. The bottleneck was solved by using a new hub in Køge from where part of the orders was delivered by truck directly on the site to avoid delays.