If you are visually impaired or blind, you can visit the PDF version by Pressing CONTROL + ALT + 4
You need a JavaScript-enabled browser to view this Publication
Please follow these steps to view the Publication:
Enable JavaScript in your browser
Refresh this page
Best regards
Zmags
north american
Tunneling
Feb/March 2011
www.tunnellingjournal.com j o u r n a l
PRECISION BLASTING
UNDER MANHATTAN
GETTING IT RIGHT ON NO 7 LINE
SEE PAGE 14 DETAILS ON PAGES 18-21 SEE PAGE 22
MIDTOWN
MEMORIES
AS THE MIDTOWN
TUNNEL TURNS 70
WE TAKE A STEP
BACK IN TIME AND
LOOK AT HOW THE
TUNNEL WAS BUILT
A COOL WAY
TO SAFETY
GROUND FREEZING
CAN OFFER SAFE
CONDITIONS FOR
EXCAVATION OF
CROSS PASSAGES
IN SOFT SOILS
AT THE FACE
WE SPEAK TO
BERNIE MARTIN,
ABOUT SOFT
GROUND TBM
PROJECTS AND
SCUBA DIVING
Tunnelling
www.tunnellingjournal.com
north american Tunneling
Tunnelling www.tunnellingjournal.com
Excavating Day anD night The earth never sleeps.
Right: Breakthrough of one of the TBMs boring Bri
“Sandvik’s unrivaled intelligence in tunneling gi
editorScomment Pick your event wisely CONFERENC
NEWS FROM THE WEB www.tunnellingjournal.com - bre
www.tunnellingjournal.com - breaking industry new
NEWS FROM THE WEB www.tunnellingjournal.com - bre
:+(1 3(5)250$1&( (5)250$1&( 0$77(56 $77(56 :K\GR
CROSSRAIL SPECIAL Crossrail's path to constructio
CROSSRAIL SPECIAL squeeze even more savings out
CROSSRAIL SPECIAL The Connaught Tunn
Commitment. MAPEI Underground
CROSSRAIL SPECIAL CROSSRAIL – the Central Section
CROSSRAIL SPECIAL on the adjacent platform tunne
CROSSRAIL SPECIAL box, built by the Canary Whar
CROSSRAIL SPECIAL The Station Platform Tunnel S
CROSSRAIL SPECIAL Figure 3: Cross section showi
which would be significant structural damage,” sa
CROSSRAIL SPECIAL Part of that specification r
GROUND CONTROL SOLUTIONS Each tunnel has a d
BRENNER TUNNEL THE BRENNER CHALLENGE Just as the
BRENNER TUNNEL Emergency Door Cr
BRENNER TUNNEL problems. Most notable on Gotthar
BRENNER TUNNEL of US$83M so far, with 30 deep co
BRENNER TUNNEL to users in cities like Zurich, m
ITA-AITES HELSINKI 2011 - the 37th ITA-AITES Con
young engineers, the event moves up a gear on the
TECHNICAL WEBINAR SERIES from 6th April, 2011
TOPICS PLANNED FOR 2011 CONVEYOR SYSTEM DESI
SLURRY OR EPBM? Closed face UNTIL THE INTRODUCTIO
SLURRY OR EPBM? decisions -
SLURRY OR EPBM? Tailseals - By definition all cl
SLURRY OR EPBM? slurry lines. This does not give
TBMs to control surface settlement within accepta
SLURRY OR EPBM? ground containing cobbles and bo
CONTRACT LAW IN THE PREVIOUS edition we took an
`The Completion Date is the com- pletion date unl
CONTRACT LAW The Programme Core clauses 31 and 32
Delivering effective solutions for Crossrail
CONVEYORS The success of any tunnel project
recalls Bancroft. “They decided to move the muck
CONVEYORS targeting for business growth.” Co
SOLID Offering new custom rolling stock
ONSITE ASSEMBLY
ONSITE ASSEMBLY co-ordination of specialist skil
ONSITE ASSEMBLY Engineers can use the software to
HDD The Ditch Witch JT100 all terrain direction
HDD WHAT IS HDD? HDD techniques are used for the
HDD 2.
HDD pipelines, and at 1.6m depth gas or electric
PRODUCT NEWS Sherborne keeps ZED on target
systems originally employed two separate transduc
PRODUCT NEWS BASF Workshop BASF has announced
Underground Construction
contact US Gary Tween Managing Director Tel: +
Underground spaces in the service of a
Tunnelling www.tunnellingjournal.com
north american Tunneling
herreNkNechT AG | UTiliTy TUNNelliNG | TrAFFi
comment Big ideas... I hate to say it, but the
PROVEN Offering new and used tunneling equipment
www.tunnelingjournal.com - breaking industry news
NEWS FROM THE WEB Internet Round-Up Calgary to ha
0RUHWKDQ RI¿FHVZRUOGZLGH :HVKDSHDEHWWHUZRUOG Get
NEWS NYC's first slurry drives mobilize
CONCEPT TO COMPLETION AUTOMATED GROUT & SLURRY S
NO 7 LINE CAVERNS
NO 7 LINE CAVERNS Left: Staggered triple drift
NO 7 LINE CAVERNS shotcrete thickness varied acc
NO 7 LINE CAVERNS confidently meeting the requir
RETROSPECTIVE New York's Queens- Midto
RETROSPECTIVE Belt Parkway, the city ran out of
��������������������������������������� ���������
THE INSIDER the insider Bob Goodfellow, PE, CEn
GROUND FREEZING
GROUND FREEZING to safe excavation Figure 4: Free
GROUND FREEZING Fig 6: Typical freeze pipe layo
GROUND FREEZING structural frozen soil body.
AT THE FACE Talking about his work on soft groun
AT THE FACE Left: Martin and Richard Lovat strike
AT THE FACE 24 NORTH AMERICAN TUNNELING JOURNAL W
June 19-22, 2011 The Marriott Marquis San Francis
RETC PREVIEW
RETC PREVIEW 2011 RETC Topics
Tunnelling Journal magazine will provide a soli
TBM CONSUMABLES TBM Consumables Directory CETC
TBM CONSUMABLES Is your TBM drive consuming too m
CURVES IN SOFT GROUND: TIGHT-TURN EPB. Active