Search Results: 'Black'

Porr prepares for power plant conversion tunnelling
03 April, 2024
Preparations for tunnelling to convert a storage and run-of-river power plant to a pumped storage power plant are under way in Germany.

Validity of The NTNU Prediction Model for D&B Tunnelling
26 February, 2024
A number of predictive models for tunnelling works were established some decades ago by Norwegian researchers and continuously improved to better fit modern trends. This paper examines one such model, for Drill & Blast, against a range of recent project data from across the country. The findings demonstrate that while the empirical methodology is still highly relevant some further improvements, and additional empirical relations, are suggested to accommodate 16 years of development in technology, equipment, contractual issues and blast design

Engineering firms investigate underground telescope feasibility
29 January, 2024
Dutch research institute Nikhef has commissioned Tunnel Engineering Consultants (TEC), a permanent joint venture between Royal HaskoningDHV and Witteveen+Bos, to carry out a technical feasibility study into establishing the underground Einstein Telescope in Europe.

Australian Torrens to Darlington Project Update
04 January, 2024
The Torrens to Darlington (T2D) Project team have releases an update of completed works in 2023 as they look forward to 2024.

Trenchless solutions serve Red River Valley needs
30 October, 2023
Key infrastructure to meet vital water supply needs in Red River Valley, North Dakota, were met with the help of trenchless tunnelling. The project is described by Victoria Encapera, Aswathy (Ash) Sivaram, Kurt Ronnekamp and Kayla Christopher of Black & Veatch

Grouting Focus in Stockholm
25 August, 2023
The second half of the year’s tunnelling industry events commence with the latest Nordic Grouting Symposium to be held in Stockholm, over two days and packing in a course plus site visits

Porr builds caverns and tunnels for pumped storage power plant
06 July, 2023
Porr has secured the Lot 2 civil works contract for the conversion of a storage and run-of-river power plant to a pumped storage power plant in Germany.

Packed schedule in Boston
28 June, 2023
TTNA previews the packed program for RETC 2023, in Boston, MA, in June

Small bores, big impacts
28 June, 2023
Views shared with TTNA on the trends and advances in the trenchless and microtunneling markets

Heavy Moves
12 June, 2023
TBMs on tunnelling projects are supported by major lifting capacity and conveyor capability

Toronto prepares for stormwater tunnelling
10 May, 2023
The TBM will soon be launched on Toronto’s largest basement flooding prevention project to date.

Observations and modelling of rock mass discontinuities
27 March, 2023
An alternative method for calculation of asymmetrical displacements in cases of predominant foliation is provided, based upon tunnelling experience from Lot E52 (Wolf) and Lot H51 (Pfons- Brenner) on the Austrian side of the Brenner Basistunnel. The paper is by Cristian Paduano, with Lombardi Group as Planning Manager for Brenner Basistunnel Nord PG BBT N, as JV for the planning, and Heimo Schierl, as geological supervisor with Brenner Basistunnel BBT SE

Tunneling under operating highways and railways: Part 2
16 January, 2023
Keivan Rafie and Gary Kramer of Hatch present the second of their two-part look at lessons in planning and constructing tunnel crossings with shallow cover under live transport corridors

Ensuring the seals on immersed tunnels
28 December, 2022
Use of rubber seals to make immersed tunnels watertight was the focus of a talk by Nicas van den Brink of Trelleborg to BTSYM/TAIym in 2020. Points covered are discussed plus a project update.

Tunnelling Under Operating Highways and Railways: Part 2
28 December, 2022
Keivan Rafie and Gary Kramer of Hatch present the second of their two-part look at lessons in planning and constructing tunnel crossings with shallow cover under live transport corridors.

UCA Award winners announced at NAT 2022
24 June, 2022
The winners of this year’s UCA Awards were announced at the North American Tunneling Conference in Philadelphia this week.

An improving technology
22 April, 2022
Once described as a ‘black art’, soil conditioning is today a proven engineering technique. But the question remains, says Alessandro Boscaro of Mapei, of how to attain good technical performance while achieving acceptable environmental sustainability?

GIVE IT YOUR BEST SHOT!
14 April, 2022
Take your tunnelling best …be published …and win a prize!

A long line of success
14 April, 2022
Dean Brox of Dean Brox Consulting reviews the benefits and successes associated with precast concrete tunnel linings when used for hydropower tunnels

Ivor Thomas Interview
21 February, 2022
Past BTS Chair Ivor Thomas has spent a lifetime in civil engineering construction. He spoke to Julian Champkin about the past and future of tunnelling, the need to enthuse the public – and the exciting challenges that the new generation of tunnellers will face