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Best regards
Zmags
TUNN
ELLING JOURNAL SEPTEMBER 2020
September 2020
The International Journal for the Tunnelling Industry
www.tunnellingjournal.com
Conveyors have
‘found their groove’
Page Page Page
16
Diversity
Matters
TJ addresses the
challenges of
attracting more
women into the
tunnelling industry.
22
Overlooked
and
undervalued?
TJ considers the
increasing demands
on slurry treatment
plants.
38
The Leading
Edge
Sindre Log reports
on the link
between TBM
performance and
disc cutters.
Tunnelling Journal 1
THE ROBBINS COMPANY
DEFY EXPECTATIONS
2 Tunnelling Journal
BREAKING THROUGH A YEAR AHEAD
A 5.06 m diameter Robbins Double Shiel
TUNN ELLING JOURNAL SEPTEMBER 2020 September 202
THE ROBBINS COMPANY DEFY EXPECTATIONS
Contents Editor’s comment – page 5 News from the
ALWAYS ADVANCING www.terratec.co
EDITOR’S COMMENT The human touch It would be i
BREAKING INDUSTRY NEWS Terratec EPBM Bound For
ALL AROUND ONLINE MAGAZINE BUILDING UP DOWN UNDE
BREAKING INDUSTRY NEWS First HS2 TBMs Prepare
Tunnelling Journal 9
Predicting the Post Covid Future This is the first
seen the pictures of London and New York stations
changes in approach currently under development.
D isruption is not an option
also considering the exhaust locations
POLYFOAMER Eco 100 Plus Soil Conditioning Agent
Diversity Matters A new generation is changing th
Chrissi McCarthy, Managing Director Constructing
about diverse teams. For any CEO to be successful
difference between men and women.” Jonsson als
Kiewit women on site McCarthy, who has had ma
Reinforcing Progress Opening new communicat
Overlooked and undervalued? Ever more challenging
OVERLOOKED AND UNDERVALUED? Slurry treatment p
24 Tunnelling Journal
OVERLOOKED AND UNDERVALUED? can come with nois
Slurry Treatment Plants: the basics For those wh
INNOVATIVE TUNNEL ENGINEERING TUNNE
Because of the increasing amount of
Many contractors don’t understand how importa
Conveyors have ‘found their groove’ Having over
B elting so good we will buy it back from you
Conveying Value, since 1978 n TBM Continuous Conv
CONVEYORS HAVE ‘FOUND THEIR GROOVE’ for consid
The Robbins overland conveyor wil
conveyors, a single vertical conveyor (HAC) and a
Conveyor systems are the core
British Tunnelling Society Conference and Exhibit
The Leading Edge New research sees TBM performanc
THE LEADING EDGE Harder rock of 200MPa UCS or
the more important the distribution of forces bet
Norway’s Røssåga Hydroelectric Project in 2014, w
Extra Heavy Duty (XHD) disc rings w
As mentioned the abrasive wear of the cutters
Contact us Tris Thomas Editorial Director Tel: +
Our Underground Future TJ’s Podcast Series
September 2020 www.tunnelingjournal.com
Alaskan Way Viaduct Replacement Program SETTING
Comment A silver lining To be honest, I didn’t
SAFETY, SERVICE, AND INNOVATION JENNMAR offers a
NORTH AMERICAN NEWS Sound Transit Completes Cons
NORTH AMERICAN NEWS Infrastructure Ontario And M
Delivering complex tunneling projects worldwide #
THE INSIDER Bob Goodfellow, PE, PEng, President,
Tunnel Trenchless Geotechnical Geostructura
Taking Tuscarora into another century Pennsylvan
TAKING TUSCARORA INTO ANOTHER CENTURY robust d
ELEVATED THINKING, UNDERGROUND. Gall Zeidler Cons
TAKING TUSCARORA INTO ANOTHER CENTURY of $110m
Mosites did apply for a change in the shotcret
North American Tunneling Journal 15
Segmental considerations Bekaert 4D Fib
SEGMENTAL CONSIDERATIONS
previously known as: Hardening post- crack behav
SEGMENTAL CONSIDERATIONS 1,750 steel-fibre reinf
Herrenknecht Formwork’s solution sees
A New Website for a New Generation of Underground