Search Results: 'Black '

Taking the softer approach
28 January, 2022
As a non-engineer, my knowledge of tunnelling would have been undeniably poorer without my well-thumbed copy of ‘Introduction to Tunnel Construction’ by Chapman, Metje and Stärk. Thus invaluable ‘bible’ of a book, with its hugely ambitious scope, has been my trusted reference over the years, guiding me ever so gently through the difficult ground of tunnelling.

Excavation on longest road tunnel completed
25 January, 2022
Drill and blast excavation has been completed on the 14.5km-long new Zigana twin-tube road tunnel which looks set to become the longest in Turkey and Europe.

Mitigating a water bearing fissure
29 December, 2021
Emily Riley won the British Geotechnical Association’s (BGA) annual Cooling Prize competition for young professionals with her paper ‘The engineering mitigation of a water bearing fissure in the Chalk at the Tideway Deptford Church Street shaft’. It is reproduced here by kind permission of the BGA

Tackling Toronto’s CSO Woes
08 September, 2021
Toronto’s sewers are overloaded. Combined sewer overflows frequently spill into Lake Ontario, local rivers and streams. A major clean-up involving three separate tunnelling projects and more besides, is in progress. Julian Champkin reports

Learning from Istanbul
12 August, 2021
Prof Dr Nuh Bilgin, Chairman of the Turkish Tunnelling Society, and Sinan Acun, TBM Group Manager, Kolin-Kalyon-Cengiz Joint Venture discuss the lessons learnt in the complex geology of two EPB-TBM drives to the new Istanbul Airport

TBM undergoes in-tunnel diameter conversion
14 July, 2021
US-based TBM maker Robbins announced recently that its 11.6m-diameter Main Beam TBM (‘Big Tex’) – the largest rock machine ever to bore in the US – has recently undergone a diameter change during tunnel excavation.

Forensic delay analysis for dispute resolution
18 June, 2021
Dimitrios Tousiakis, delay expert and Director of HKA Dubai, looks at applying Linear Scheduling Methodology tools to simplify forensic delay analysis for dispute resolution

Drill and blast tunneling
25 February, 2021
A form of blasting dating from the pre-explosive’s era involved excavating tunnels by lighting fires at the face and throwing cold water on the hot surface to crack the rock. Later on, blasting with black powder was invented and since then, there have been steady developments in explosives, detonating and delaying techniques, and in our understanding of the mechanics of rock breakage by explosives.

Trans Euro Express
17 July, 2020
The Magistrale is a 1,500km high-speed rail project that will link France, Germany, Austria, Slovakia and Hungary. Julian Champkin reports on the tunnelling through Germany’s Swabian Alps.

Wet weather ready
26 May, 2020
The Don River and Central Waterfront Project will help improve Toronto’s waterways by reducing CSOs. The project team provides an update on the Coxwell Bypass Tunnel

Himalayan Crown
27 April, 2020
Binod Lal Amatya of Arcadis set out the proposal for a Kathmandu Valley Metro. Alex Conacher reports

Diesel particulate monitoring
27 April, 2020
A Diesel Particulate Matter (DPM) monitoring system developed by an Australian company is set to revolutionise the safety of tunnelling and mining operations across the world

Drill and blast tunnelling
04 March, 2020
Did you know... rock blasting has been used since the preexplosives time, when rock tunnels were excavated by building fires at the face and cracking the rock by throwing cold water on the hot surfaces? Later on, blasting with black powder was invented and since then, there have been steady developments in explosives, detonating and delaying techniques, and in our understanding of the mechanics of rock breakage by explosives.

Long-Baseline Neutrino Facility releases construction update
19 February, 2020
South Dakota – Three of the underground construction components are near completion at the Sanford Underground Research Facility (Sanford Lab) for the far site of Fermi National Accelerator Laboratory’s (Fermilab) Long-Baseline Neutrino Facility (LBNF).

City of Toronto launches TBM for Coxwell bypass project
17 December, 2019
Ontario – Toronto mayor John Tory and councillor Jennifer McKelvie, vice-chair of the Infrastructure and Environment Committee and the mayor's resilience and environmental champion, officially marked the beginning of tunnel boring for the Coxwell Bypass Tunnel on December 14.

City of Dallas unveils Mill Creek TBM
12 December, 2019
Texas – The City of Dallas recently unveiled the Mill Creek Drainage Relief Tunnel TBM, it announced December 6. The 37.7ft (11m) by 230ft long machine will excavate a 5-mile (8km) tunnel for flood protection.

Forum Tunnel incident
14 November, 2019
A tunnel fire is never a positive event, but when there is no loss of life there is good reason to be thankful. Fläkt Woods issued this account of a recent incident

Navigating live tunnel connections
30 September, 2019
Connecting the Des Plaines Tunnel System to the McCook Reservoir is one of the latest – and more challenging – components of TARP. Report by Cary Hirner and Faruk Oksuz of Black & Veatch, and Carmen Scalise of the Metropolitan Water Reclamation District of Greater Chicago

Gap year
01 March, 2019
Tunnelling begins this year for the City of Louisville. Nicole Robinson reports on the Waterway Protection Tunnel

In sync
24 January, 2019
The successful logistics of staging four TBMs from one location has enabled the first pair of machines to make a breakthrough near Oslo, ahead of schedule. Nicole Robinson reports on the Follo Line’s first major milestone