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<br /> <br /> TUNNELLING JOURNAL APRIL/MAY 2021<br /> April/May 2021<br /> The International Journal for the Tunnelling Industry<br /> www.tunnellingjournal.com<br /> P<br /> ushing<br /> Limits with<br /> Vigorous<br /> Engineering<br /> Page Page Page<br /> 10 <br /> Robbins Returns<br /> Home<br /> Lok Home talks to<br /> TJ‘s Amanda Foley<br /> about a new chapter<br /> at Robbins.<br /> 22<br /> The future for<br /> low carbon<br /> concrete?<br /> Why are major<br /> tunnelling projects<br /> considering<br /> geopolymer<br /> concrete?<br /> 30<br /> Cast-In-Place<br /> concrete<br /> lining solutions<br /> TJ explores current<br /> and possible future<br /> technical solutions<br /> for Cast-In-Place<br /> linings in tunnels.<br /> Tunnelling Journal 1<br /> VSM<br /> FLEXIBLE AND<br /> EFFICIENT<br /> For quick and reliable constructio<a title="TJ April/May 2021 page 1" href="https://secure.viewer.zmags.com/publication/885484af?page=1"> </a> <a title="TJ April/May 2021 page 2" href="https://secure.viewer.zmags.com/publication/885484af?page=2"> TUNNELLING JOURNAL APRIL/MAY 2021 April/May 2021</a> <a title="TJ April/May 2021 page 3" href="https://secure.viewer.zmags.com/publication/885484af?page=3"> VSM FLEXIBLE AND EFFICIENT For quick and reliabl</a> <a title="TJ April/May 2021 page 4" href="https://secure.viewer.zmags.com/publication/885484af?page=4"> Cover Story Pushing Limits with Vigorous Engineer</a> <a title="TJ April/May 2021 page 5" href="https://secure.viewer.zmags.com/publication/885484af?page=5"> 4 Tunnelling Journal Tunnelling Journal</a> <a title="TJ April/May 2021 page 6" href="https://secure.viewer.zmags.com/publication/885484af?page=6"> EDITOR’S COMMENT Good things come… I admit it</a> <a title="TJ April/May 2021 page 7" href="https://secure.viewer.zmags.com/publication/885484af?page=7"> BREAKING INDUSTRY NEWS Final Breakthrough on B</a> <a title="TJ April/May 2021 page 8" href="https://secure.viewer.zmags.com/publication/885484af?page=8"> BREAKING INDUSTRY NEWS Sydney Metro West recei</a> <a title="TJ April/May 2021 page 9" href="https://secure.viewer.zmags.com/publication/885484af?page=9"> Brenner’s Herrenknecht TBM array From the Tulfes </a> <a title="TJ April/May 2021 page 10" href="https://secure.viewer.zmags.com/publication/885484af?page=10"> Tunnelling Journal 9</a> <a title="TJ April/May 2021 page 11" href="https://secure.viewer.zmags.com/publication/885484af?page=11"> Robbins Returns Home Robbins began a fresh chapt</a> <a title="TJ April/May 2021 page 12" href="https://secure.viewer.zmags.com/publication/885484af?page=12"> ROBBINS RETURNS HOME </a> <a title="TJ April/May 2021 page 13" href="https://secure.viewer.zmags.com/publication/885484af?page=13"> Progress Reinforcing Tunnels help maximise </a> <a title="TJ April/May 2021 page 14" href="https://secure.viewer.zmags.com/publication/885484af?page=14"> ROBBINS RETURNS HOME Robbins is known for tak</a> <a title="TJ April/May 2021 page 15" href="https://secure.viewer.zmags.com/publication/885484af?page=15"> A legacy of innovation It wasn’t until the early</a> <a title="TJ April/May 2021 page 16" href="https://secure.viewer.zmags.com/publication/885484af?page=16"> The 7.8m diameter ‘Mittry Mole’ at the Oahe Dam P</a> <a title="TJ April/May 2021 page 17" href="https://secure.viewer.zmags.com/publication/885484af?page=17"> Reducing the carbon footprint of segmental lining</a> <a title="TJ April/May 2021 page 18" href="https://secure.viewer.zmags.com/publication/885484af?page=18"> REDUCING THE CARBON FOOTPRINT OF SEGMENTAL LINING</a> <a title="TJ April/May 2021 page 19" href="https://secure.viewer.zmags.com/publication/885484af?page=19"> D isruption is not an option </a> <a title="TJ April/May 2021 page 20" href="https://secure.viewer.zmags.com/publication/885484af?page=20"> REDUCING THE CARBON FOOTPRINT OF SEGMENTAL LINING</a> <a title="TJ April/May 2021 page 21" href="https://secure.viewer.zmags.com/publication/885484af?page=21"> Figure 7: Annulus grout comparison, based </a> <a title="TJ April/May 2021 page 22" href="https://secure.viewer.zmags.com/publication/885484af?page=22"> REDUCING THE CARBON FOOTPRINT OF SEGMENTAL LINING</a> <a title="TJ April/May 2021 page 23" href="https://secure.viewer.zmags.com/publication/885484af?page=23"> The future for low carbon concrete? New green pr</a> <a title="TJ April/May 2021 page 24" href="https://secure.viewer.zmags.com/publication/885484af?page=24"> 2.2 BS EN 14651:2005 beam tests THE FUTURE FOR </a> <a title="TJ April/May 2021 page 25" href="https://secure.viewer.zmags.com/publication/885484af?page=25"> Table 2 – Comparative test results EFC v producti</a> <a title="TJ April/May 2021 page 26" href="https://secure.viewer.zmags.com/publication/885484af?page=26"> Allen. “Contractors have used it as blinding on c</a> <a title="TJ April/May 2021 page 27" href="https://secure.viewer.zmags.com/publication/885484af?page=27"> Putting Everything Together Perfectly. READ M</a> <a title="TJ April/May 2021 page 28" href="https://secure.viewer.zmags.com/publication/885484af?page=28"> 15 MINUTES WITH... 15 minutes with... Mike Ris</a> <a title="TJ April/May 2021 page 29" href="https://secure.viewer.zmags.com/publication/885484af?page=29"> 15 minutes with... Mike Rispin being embraced b</a> <a title="TJ April/May 2021 page 30" href="https://secure.viewer.zmags.com/publication/885484af?page=30"> 15 MINUTES WITH... worse at this. Nonetheless,</a> <a title="TJ April/May 2021 page 31" href="https://secure.viewer.zmags.com/publication/885484af?page=31"> The evolution of Cast-In-Place concrete lining so</a> <a title="TJ April/May 2021 page 32" href="https://secure.viewer.zmags.com/publication/885484af?page=32"> THE EVOLUTION OF CAST-IN-PLACE CONCRETE LINING SO</a> <a title="TJ April/May 2021 page 33" href="https://secure.viewer.zmags.com/publication/885484af?page=33"> ELEVATED THINKING, UNDERGROUND. Gall Zeidler Cons</a> <a title="TJ April/May 2021 page 34" href="https://secure.viewer.zmags.com/publication/885484af?page=34"> THE EVOLUTION OF CAST-IN-PLACE CONCRETE LINING SO</a> <a title="TJ April/May 2021 page 35" href="https://secure.viewer.zmags.com/publication/885484af?page=35"> ULMA’s MK Formwork Carriage </a> <a title="TJ April/May 2021 page 36" href="https://secure.viewer.zmags.com/publication/885484af?page=36"> British Tunnelling Society Conference and Exhibit</a> <a title="TJ April/May 2021 page 37" href="https://secure.viewer.zmags.com/publication/885484af?page=37"> PRODUCT NEWS Sandvik’s new DT923i jumbo Sandvik </a> <a title="TJ April/May 2021 page 38" href="https://secure.viewer.zmags.com/publication/885484af?page=38"> PRODUCT NEWS Howden Fans to Wales Howden has rec</a> <a title="TJ April/May 2021 page 39" href="https://secure.viewer.zmags.com/publication/885484af?page=39"> Contact us Tris Thomas Editorial Director Tel: + </a> <a title="TJ April/May 2021 page 40" href="https://secure.viewer.zmags.com/publication/885484af?page=40"> D IGITAL CONSTRUCTION The Elephant in the Room </a> <a title="TJ April/May 2021 page 41" href="https://secure.viewer.zmags.com/publication/885484af?page=41"> </a> <a title="TJ April/May 2021 page 42" href="https://secure.viewer.zmags.com/publication/885484af?page=42"> April/May 2021 www.tunnelingjournal.com</a> <a title="TJ April/May 2021 page 43" href="https://secure.viewer.zmags.com/publication/885484af?page=43"> A proud heritage of innovative thinking. </a> <a title="TJ April/May 2021 page 44" href="https://secure.viewer.zmags.com/publication/885484af?page=44"> Comment Should I stay or should I go now? It’s b</a> <a title="TJ April/May 2021 page 45" href="https://secure.viewer.zmags.com/publication/885484af?page=45"> DELIVERING COMPLEX TUNNELING PROJECTS WORLDWIDE </a> <a title="TJ April/May 2021 page 46" href="https://secure.viewer.zmags.com/publication/885484af?page=46"> NORTH AMERICAN NEWS Seattle EPBM readies for lau</a> <a title="TJ April/May 2021 page 47" href="https://secure.viewer.zmags.com/publication/885484af?page=47"> THE INSIDER Bob Goodfellow, PE, PEng, President, </a> <a title="TJ April/May 2021 page 48" href="https://secure.viewer.zmags.com/publication/885484af?page=48"> North American Tunneling Journal 7</a> <a title="TJ April/May 2021 page 49" href="https://secure.viewer.zmags.com/publication/885484af?page=49"> Shaft works on Toronto’s Coxwell </a> <a title="TJ April/May 2021 page 50" href="https://secure.viewer.zmags.com/publication/885484af?page=50"> working 3m from the shaft. “On a lot of these</a> <a title="TJ April/May 2021 page 51" href="https://secure.viewer.zmags.com/publication/885484af?page=51"> THE FUTURE IS BUILT ON US. Build A busy i</a> <a title="TJ April/May 2021 page 52" href="https://secure.viewer.zmags.com/publication/885484af?page=52"> dewatering on a project because it could mobilize</a> <a title="TJ April/May 2021 page 53" href="https://secure.viewer.zmags.com/publication/885484af?page=53"> the shaft’s proximity to a nearby river and levee</a> <a title="TJ April/May 2021 page 54" href="https://secure.viewer.zmags.com/publication/885484af?page=54"> SETTING THE STANDARD HNTB has set the standard in</a> <a title="TJ April/May 2021 page 55" href="https://secure.viewer.zmags.com/publication/885484af?page=55"> Rise to the challenge The City of Toronto is buil</a> <a title="TJ April/May 2021 page 56" href="https://secure.viewer.zmags.com/publication/885484af?page=56"> RISE TO THE CHALLENGE risers.” Each riser is a</a> <a title="TJ April/May 2021 page 57" href="https://secure.viewer.zmags.com/publication/885484af?page=57"> The tunneling compound during this year’s window</a> <a title="TJ April/May 2021 page 58" href="https://secure.viewer.zmags.com/publication/885484af?page=58"> IF IT ROLLS ON RAILS, WE'VE GOT YOU COVERED. </a> <a title="TJ April/May 2021 page 59" href="https://secure.viewer.zmags.com/publication/885484af?page=59"> The starter tunnel worse, can be a safe</a> <a title="TJ April/May 2021 page 60" href="https://secure.viewer.zmags.com/publication/885484af?page=60"> Tunnel  Trenchless  Geotechnical  Geostructura</a>