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Tideway underground construction complete
29 March, 2024
Underground construction of London’s Tideway sewer has been completed with the lifting of a 1,200-tonne lid to cap off the project’s deepest shaft.

Arnold Dix – Interview
28 March, 2024
A tunneller with 100 million website hits? Unlikely, surely, but Arnold Dix is an unlikely tunneller. A tunneller is not supposed to be a successful barrister, a national icon, or be world famous. Dix has, accidentally, become the exception. He is, as well as all that, the current President of the International Tunnelling and Underground Space Association (ITA-AITES); this April he is to chair ITA’s annual Member Nations General Assembly meeting at the World Tunnel Congress (WTC 2024) in Shenzhen, China. Julian Champkin spoke to him

Pipejacking Association updates guidance
27 March, 2024
The Pipejacking Association (PJA) has released an update to its document previously entitled ‘Tunnelling & pipejacking guidance for designers’, now ‘Pipejacking design guidance for CDM duty holders’.

Fehmarnbelt Tunnel dyke completed
27 March, 2024
A new dyke over the Fehmarnbelt Tunnel portal has been completed.

Embrace challenges as catalysts for change
27 March, 2024
Hagerbach Test Gallery recently helped to host some of the high-level discussions of the World Systemic Forum, a key theme of which was the value of underground environments, with ITACUS taking part. Antonia Cornaro, Co-Chair of ITACUS, and also Expert Underground Space with Amberg Engineering and lecturer on Planning of Underground Space at ETH Zurich, explains how such strategic discussions help collaboration for sustainable urban development and resilience planning

Turin TBM passes FAT
26 March, 2024
The 4m-diameter slurry TBM that will dig the Turin Median Collector has passed its Factory Acceptance Test.

TBM completes final drive in Vancouver
26 March, 2024
The first of two TBMs building Vancouver’s Broadway Subway has made its final breakthrough.

Shenzhen - Zhongshan Mega Sea Link
26 March, 2024
The Shen-Zhong fixed sea link is one of China’s most pivotal and challenging infrastructure undertakings, requiring a innovation in both the design and construction realms – including for the Steel-Concrete-Steel (SCS) composite structure of the long and wide immersed tube tunnel. The project is described by CHEN Weile, SONG Shengyou, LIU Jian, CHEN Yue, and JIN Wenliang of Shen-Zhong Link Management Center

ITA on immersed & floating tunnels
26 March, 2024
Two of the many reports from ITA in the last two years have focused on immersed tunnels and floating tunnels, respectively, through the efforts of the expert team in the area, Working Group 11 (WG11)

Central Interceptor TBM makes fifth breakthrough
25 March, 2024
Another breakthrough has been made on Auckland’s Central Interceptor – New Zealand’s largest bored water tunnel.

Thai-built HDD rig completes Indian river crossing
25 March, 2024
A river crossing for India’s Paradip Numaligarh Crude Pipeline project has been completed successfully using the largest HDD modular rig in Herrenknecht’s portfolio.

UK Power Networks and Barhale build tunnel to power HS2 construction to Euston
25 March, 2024
UK Power Networks has partnered with Barhale to build a micro-tunnel under the Grand Union Canal in West London to deliver power for HS2.

Bringing all together
25 March, 2024
With so much tunnelling work in China, recent issues of T&TI have carried major articles ahead of the country hosting the World Tunnel Congress (WTC 2024), in April. The articles have given a sense of the scale and variety of major project activity across the nation – and an idea of the strategic vision for rail/metro transport and use of tunnelling technology in rapidly expanding Shenzhen, the host city of WTC 2024.

Innovation for major segmental tunnels
25 March, 2024
Bekaert’s Dramix® fibres have recently played significant roles for tunnel projects in two countries with major events coming soon – in France, where the Grand Paris Express subway is supporting the capital hosting the 2024 Summer Olympic Games, and in China, which will shortly host the World Tunnel Congress (WTC) 2024 and among its many large projects to be featured is Qingdao Second Road Tunnel at Jiaozhou Bay. The designs are discussed by Benoit de Rivaz, Global Technical Manager, Bekaert BP Underground Solutions

Hypertunnel – Evolution Of Testing
25 March, 2024
R&D for hyperTunnel’s robots has evolved using ‘swarm’ rather than classic individual testing to enable the system to work in underground construction environments. The approach is discussed by Conor West, Support and Service Engineer with the company

Many requirements in Sweden – one MTBM hard rock solution
25 March, 2024
An exceptional microtunnelling project in Edsberg, Sweden, posed particularly complex challenges: very hard, highly abrasive rock and no possibility of a target shaft. The solution was the newly developed AVN 800 HR from Herrenknecht in combination with jacking of a temporary steel pipe string to withdraw the MTBM. Herrenknecht’s Michael Groß, Senior Product Manager Pipe Jacking, and Lutz zur Linde, Sales Manager Utility Tunnelling, discuss the technology and its application

Christopher Hewett wins BTS Harding Prize
22 March, 2024
The British Tunnelling Society has announced Christopher Hewett as the winner of the 2024 Harding Prize.

Final breakthrough made on HS2’s longest tunnel
22 March, 2024
Excavation of HS2’s longest tunnel was completed yesterday when the second TBM broke through.

Excavation completed on Mularroya dam tunnel
21 March, 2024
Acciona and its partner, Sacyr, have made the final breakthrough on the Mularroya dam transfer tunnel in Spain. Zaragoza

Network Rail to hold Transpennine market engagement
20 March, 2024
Network Rail is to hold a market engagement event for the supply chain for the Transpennine Route Upgrade, including tunnels.