Search Results: 'Hochtief'

Extending Access Possibilities
26 September, 2023
Preassembled, needing only a small footprint and able to self-extend during shaft sinking as well as remain for permanent use afterward, XL Industries’ XE5 mechanised access lift system has worked on some major tunnel projects

Geopolymer concrete in tunnelling
24 July, 2023
At the monthly BTS meeting at the Institution of Civil Engineers, in London, in March 2023, John Day, Chief Technical Officer of Wagners EFC Pty Ltd, Charles Allen, Director of OTB Concrete, and Richard Sutherden, Engineering Director with Murphy for the HMJV (Hochtief- Murphy Joint Venture) provided perspectives on the use and future potential of geopolymer concretes, and the Earth Friendly Concrete in particular, in underground applications

Challenges and successes
27 March, 2023
A brief snapshot sample of large and small utility tunnelling challenges and successes across the globe over recent months

Keeping hold of the natural balance
24 June, 2022
Careful groundwater management was vital to build Copenhagen’s metro and, elsewhere, dewatering is taking on more tunnelling challenges. Report by Patrick Reynolds

Tunnel to restore snowdonian landscape
22 April, 2022
An area of outstanding natural beauty, Snowdonia is scarred by unsightly pylons and overhead high-voltage cables. They will now be removed and placed in a new tunnel that forms part of a visual improvement project. Julian Champkin reports

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

National grids
25 March, 2021
Utility grid projects bring a variety of tunnelling challenges. Report by Patrick Reynolds

City & Southwest
20 January, 2020
Alex Conacher visits the Sydney Metro’s second phase to speak with Terry Sleiman, project director for the contractor John Holland CPB Ghella, Hugh Lawson, project director for the client, and Kate Cole, occupational health and hygiene manager for Transport for NSW

Northern exposure
27 September, 2019
A round-up of tunnel work in the Nordic Forum

Deep pile foundation interceptions in tunnelling at bank station
12 October, 2017
This article is a reproduction of Omar Mohammed’s Harding Prize winning paper. The original can be found on the BTS website

Eyes on the prize
12 October, 2017
The BTS Harding Prize recognises outstanding performance in the tunnelling industry by young engineers under the age of 33. Sally Spencer spoke to this year’s winner, Transport for London’s Omar Mohammed

Andean Potential
06 September, 2017
From hydropower and metro systems to mining and road tunnels, Chile’s tunnelling market remains buoyant and some major projects are on the horizon

Going Live
30 January, 2017
Tunnellers must advance through a ring of frozen ground protecting a live railway in order to build the Rastatt Tunnel and create vital new capacity along this crucial European transport corridor

Nordic Neighbors
03 November, 2016
The ITA’s Nordic Forum provides an opportunity for canada and other nations to exchange information. Tunnels & Tunnelling looks at projects underway in the region

Turkish lessons for Tyrol
14 March, 2016
Tunnels and Tunnelling visits the Gemeinschaftskraftwerk Inn hydropower project in Tyrol, Austria just as access tunnel construction has been completed and one of two TBMs has been moved to the face. The manufacturer claims that lessons from the Kargi HEPP have driven improvements for this type of project.

Powering Peru
18 February, 2016
With a burgeoning market for hydropower development, tunnelling work is seeing an uptick in South America’s third largest country. Nicole Robinson looks at two recent projects

East meets West
31 December, 2015
Eight Herrenknecht TBMs turned in exemplary performances during tunnel excavation on the Crossrail project. Sally Spencer reports.

TAC Reports
03 November, 2015
Every October the four Tunnel Association of Canada (TAC) regional directors provide anoverview of the market in their annual reports

Eastern expanse
29 October, 2015
Construction for metro projects, with events such as the World Cup on the horizon, is driving the demand for tunnelling Qatar. Other cities in the Middle East are also investing in infrastructure development, growing the market for tunnelling across the region. Keren Falwell reports.

TAC Review
30 January, 2015
The Tunnelling Association of Canada’s regional directors give their annual reports on the industry.