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28 Jan 2021             ALERT SIGNUP
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Learning from difficult rock TBM drive experiences

Be sure you have insurance built into the machine before heading into a long-distance drive is the advice from Lok Home, President of The Robbins Company

Delusional expectations for difficult drives

Feedback: Fancy geological computer models are no substitute for real site investigation data and lead to poor TBM designs

Planning permission granted for Sydney Harbour link

Construction of the Western Harbour immersed tube link under Sydney Harbour is approved by the New South Wales Government

Stonehenge progress despite legal challenge

Procurement of the Stonehenge twin-tube road tunnel in the UK continues despite the legal challenge to its planning approval


Geotechnical reports are an important part of TBM project procurement, of machine specifications and of TBM project success. A growing reliance on more sophisticated geological modelling is no substitute for real site investigation and understanding. Finding the sweet spot between geological modelling and understanding actual ground conditions and behaviour is the challenge.

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Video: MSc route to career underground

Video: Difficult TBM project experiences
Education and Training Focus
ITA-CET online lectures to be held monthly
DFI Educational Trust awards scholarships
UK Warwick MSc course open for 2021
Promoting underground careers
Recent reporting
Two Ontario Line contracts shortlisted
New TBM to finish St Louis CSO drive
Rohtang pushed NATM to the limits
Narragansett Pawtucket CSO contract award
Observational method in civil engineering
Final breakthrough at Washington DC CSO
Subway river crossing in Pune completed
Crossing Irish valley to preserve nature
Finland and Estonia tighten cooperation
Contract awarded for Cross Island subway
TBM parts arrive for Manila subway
Work starts at Auckland CRL station
Halfway mark for Sydney massive junction
Tender starts for Phillipines rail link
TBM ready for Shantou Bay rail crossing
Radioactive waste research laboratory
Metro lines opened in Luoyang and Jinan
Longest water crossing to be completed
Tsurumi makes moving materials easier
Search for water mains with SmartBall
EWE to explore hydrogen storage
Balfour Beatty creates carbon calculator

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