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TUNNELLING JOURNAL APRIL/MAY 2021
April/May 2021
The International Journal for the Tunnelling Industry
www.tunnellingjournal.com
P
ushing
Limits with
Vigorous
Engineering
Page Page Page
10
Robbins Returns
Home
Lok Home talks to
TJ‘s Amanda Foley
about a new chapter
at Robbins.
22
The future for
low carbon
concrete?
Why are major
tunnelling projects
considering
geopolymer
concrete?
30
Cast-In-Place
concrete
lining solutions
TJ explores current
and possible future
technical solutions
for Cast-In-Place
linings in tunnels.
Tunnelling Journal 1
VSM
FLEXIBLE AND
EFFICIENT
For quick and reliable constructio
TUNNELLING JOURNAL APRIL/MAY 2021 April/May 2021
VSM FLEXIBLE AND EFFICIENT For quick and reliabl
Cover Story Pushing Limits with Vigorous Engineer
4 Tunnelling Journal Tunnelling Journal
EDITOR’S COMMENT Good things come… I admit it
BREAKING INDUSTRY NEWS Final Breakthrough on B
BREAKING INDUSTRY NEWS Sydney Metro West recei
Brenner’s Herrenknecht TBM array From the Tulfes
Tunnelling Journal 9
Robbins Returns Home Robbins began a fresh chapt
ROBBINS RETURNS HOME
Progress Reinforcing Tunnels help maximise
ROBBINS RETURNS HOME Robbins is known for tak
A legacy of innovation It wasn’t until the early
The 7.8m diameter ‘Mittry Mole’ at the Oahe Dam P
Reducing the carbon footprint of segmental lining
REDUCING THE CARBON FOOTPRINT OF SEGMENTAL LINING
D isruption is not an option
REDUCING THE CARBON FOOTPRINT OF SEGMENTAL LINING
Figure 7: Annulus grout comparison, based
REDUCING THE CARBON FOOTPRINT OF SEGMENTAL LINING
The future for low carbon concrete? New green pr
2.2 BS EN 14651:2005 beam tests THE FUTURE FOR
Table 2 – Comparative test results EFC v producti
Allen. “Contractors have used it as blinding on c
Putting Everything Together Perfectly. READ M
15 MINUTES WITH... 15 minutes with... Mike Ris
15 minutes with... Mike Rispin being embraced b
15 MINUTES WITH... worse at this. Nonetheless,
The evolution of Cast-In-Place concrete lining so
THE EVOLUTION OF CAST-IN-PLACE CONCRETE LINING SO
ELEVATED THINKING, UNDERGROUND. Gall Zeidler Cons
THE EVOLUTION OF CAST-IN-PLACE CONCRETE LINING SO
ULMA’s MK Formwork Carriage
British Tunnelling Society Conference and Exhibit
PRODUCT NEWS Sandvik’s new DT923i jumbo Sandvik
PRODUCT NEWS Howden Fans to Wales Howden has rec
Contact us Tris Thomas Editorial Director Tel: +
D IGITAL CONSTRUCTION The Elephant in the Room
April/May 2021 www.tunnelingjournal.com
A proud heritage of innovative thinking.
Comment Should I stay or should I go now? It’s b
DELIVERING COMPLEX TUNNELING PROJECTS WORLDWIDE
NORTH AMERICAN NEWS Seattle EPBM readies for lau
THE INSIDER Bob Goodfellow, PE, PEng, President,
North American Tunneling Journal 7
Shaft works on Toronto’s Coxwell
working 3m from the shaft. “On a lot of these
THE FUTURE IS BUILT ON US. Build A busy i
dewatering on a project because it could mobilize
the shaft’s proximity to a nearby river and levee
SETTING THE STANDARD HNTB has set the standard in
Rise to the challenge The City of Toronto is buil
RISE TO THE CHALLENGE risers.” Each riser is a
The tunneling compound during this year’s window
IF IT ROLLS ON RAILS, WE'VE GOT YOU COVERED.
The starter tunnel worse, can be a safe
Tunnel Trenchless Geotechnical Geostructura