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Resilient underground design and systems
27 February, 2024
The need for subsurface spaces to be more sustainable and resilient was the focus of an ITA report published last year which, in considering ‘Urban Underground Space for Resilient Cities’, looked at need, strategies, design concepts to address the challenges

Delving Deep: Rethinking Underground Use
27 February, 2024
Rethinking Our Cities using the Underground Space’ was the important theme of a dedicated collaborative event hosted in Porto, Portugal, by the Portuguese tunnelling society (CPT), in Nov 2023, and moderated by ITACUS Co-chair Antonia Cornaro, Expert Underground Space with Amberg Engineering as well as lecturer on Planning of Underground Space at ETH Zurich. In this article, she describes and summarises the key points of the interesting discussion.

Technological Innovation Drives The High-Quality Development Of The Shenzhen Metro
27 February, 2024
Under the guidance of the innovation-driven development strategy, Shenzhen Metro is undergoing a transformation in its development model, transitioning from rapid expansion to a focus on highquality development.

HS2 launches third TBM in London
26 February, 2024
HS2’s London Tunnels contractor, Skanska Costain Strabag (SCS) joint venture, has launched a third TBM.

Silvertown Tunnel opening brought forward
26 February, 2024
The opening of London’s Silvertown Tunnel has been brought forward, a year after it was announced the programme had been pushed back.

Norwegian tunnels stats update: 2023
26 February, 2024
Latest annual data update on tunnelling activity in Norway shows another year of higher activity overall and another year of changes in who is most active

All that is below
26 February, 2024
Underground space can be discussed in many ways – broadly, on the possibilities for and uses of the below surface asset; and, specifically, looking at precisely and measurably what can be done. Both are discussed in this issue of T&TI.

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

TBM breaks through on Lonato tunnel
23 February, 2024
Excavation has been completed on the Lonato del Garda tunnel on Italy’s Brescia-Verona high-speed railway.

Harding Prize lecture in March
22 February, 2024
The three finalists for this year’s Harding Prize will present their papers at the British Tunnelling Society’s (BTS) March meeting.

Pawtucket Tunnel excavation completed
21 February, 2024
CBNA-Barletta joint venture CB3A has completed the excavation and lining of the 3.6km Pawtucket Tunnel in Rhode Island.

Campaigners lose High Court bid to stop Stonehenge tunnel
20 February, 2024
Campaigners have lost a High Court challenge against the proposed Stonehenge road tunnel.

Strabag wins Eglinton Crosstown West Extension – Advance Tunnel 2 contract
19 February, 2024
Infrastructure Ontario (IO) and Metrolinx have awarded a fixed-price contract of C$255m to Strabag to design, build and finance the second underground segment of the Eglinton Crosstown West Extension.

First heavy construction contract awarded for Hudson Tunnel
19 February, 2024
The Gateway Development Commission has awarded the Hudson River Ground Stabilisation (HRGS) Project to Weeks Marine, marking the first heavy construction contract for the Hudson Tunnel Project (HTP).

TBM makes good progress on Vishnugad-Pipalkoti Hydropower project
19 February, 2024
Hindustan Construction Co is making good progress on India’s Vishnugad-Pipalkoti Hydropower project, excavating 431m in January.

Hinkley Point C tunnels ready for connection to Bristol Channel
16 February, 2024
Hinkley Point C’s tunnels for water intake and outfall are ready to be connected to the Bristol Channel.

Two more sinkholes above HS2 Chiltern tunnel
15 February, 2024
Two more sinkholes have formed above the HS2 tunnel in the Chilterns.

Cavern excavation completed for international neutrino research
15 February, 2024
Excavation has been completed on three large caverns that will house the massive particle detectors for the international Deep Underground Neutrino Experiment (DUNE).

BTS celebrates 50 years with limited edition book
14 February, 2024
The British Tunnelling Society is marking its 50-year history with a limited edition book celebrating tunnellers and tunnelling.

US DOT opens applications for low carbon concrete research
14 February, 2024
The US Department of Transportation (US DOT) has announced a US$5m funding opportunity for research into the use of steel slag in cement and concrete.