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<br /> October/November 2025<br /> www.tunnellingjournal.com<br /> Finale and Curtain Call<br /> page 10<br /> North American Tunneling Journal 1<br /> TUNNELLING JOURNAL OCTOBER/NOVEMBER 2025<br /> October/November 2025<br /> The International Journal for the Tunnelling Industry<br /> www.tunnellingjournal.com<br /> HS2: Northolt<br /> drives complete<br /> Page Page Page<br /> 10<br /> Lisbon Drainage<br /> Master Plan<br /> In Lisbon, the<br /> construction of two<br /> tunnels designed to<br /> alleviate flooding in the<br /> city is underway. TJ’s<br /> Kristina Smith visited<br /> the project to check on<br /> progress. 16<br /> 15 minutes with<br /> Örjan A Sjöström<br /> TJ reviews the career<br /> of one of Sweden’s<br /> most illustrious<br /> Tunnelling Engineers. 30<br /> T<br /> The role of<br /> Directional Core<br /> Drilling in tunnelling<br /> Ivan Dimit<a title="TJ Oct/Nov 2025 page 1" href="https://secure.viewer.zmags.com/publication/62559368?page=1"> October/November 2025 www.tunnellingjou</a> <a title="TJ Oct/Nov 2025 page 2" href="https://secure.viewer.zmags.com/publication/62559368?page=2"> TUNNELLING JOURNAL OCTOBER/NOVEMBER 2025 October</a> <a title="TJ Oct/Nov 2025 page 3" href="https://secure.viewer.zmags.com/publication/62559368?page=3"> 2 Tunnelling Journal </a> <a title="TJ Oct/Nov 2025 page 4" href="https://secure.viewer.zmags.com/publication/62559368?page=4"> CONTENTS Editor’s comment – page 5 Industry News</a> <a title="TJ Oct/Nov 2025 page 5" href="https://secure.viewer.zmags.com/publication/62559368?page=5"> TBM diameter variation (6.5 m ‒ 8.0 m) on 50° inc</a> <a title="TJ Oct/Nov 2025 page 6" href="https://secure.viewer.zmags.com/publication/62559368?page=6"> EDITOR’S COMMENT Planning ahead… How Örjan Sjös</a> <a title="TJ Oct/Nov 2025 page 7" href="https://secure.viewer.zmags.com/publication/62559368?page=7"> BREAKING INDUSTRY NEWS Chiang Mai flood project co</a> <a title="TJ Oct/Nov 2025 page 8" href="https://secure.viewer.zmags.com/publication/62559368?page=8"> Tunnelling Journal 7</a> <a title="TJ Oct/Nov 2025 page 9" href="https://secure.viewer.zmags.com/publication/62559368?page=9"> THE DIGITAL TUNNELLER Naomi Wheeler Reed, Associa</a> <a title="TJ Oct/Nov 2025 page 10" href="https://secure.viewer.zmags.com/publication/62559368?page=10"> TECDOS LINEAR MOTION ROBUST , RELIABLE & STRONG </a> <a title="TJ Oct/Nov 2025 page 11" href="https://secure.viewer.zmags.com/publication/62559368?page=11"> Fighting flooding and climate change in Lisbon In</a> <a title="TJ Oct/Nov 2025 page 12" href="https://secure.viewer.zmags.com/publication/62559368?page=12"> Lisbon Drainage Master Plan Two tu</a> <a title="TJ Oct/Nov 2025 page 13" href="https://secure.viewer.zmags.com/publication/62559368?page=13"> attenuate flow during heavy rainfall events. H</a> <a title="TJ Oct/Nov 2025 page 14" href="https://secure.viewer.zmags.com/publication/62559368?page=14"> Lisbon Drainage Master Plan techniques can be </a> <a title="TJ Oct/Nov 2025 page 15" href="https://secure.viewer.zmags.com/publication/62559368?page=15"> NATM works at the shaft on Avenida </a> <a title="TJ Oct/Nov 2025 page 16" href="https://secure.viewer.zmags.com/publication/62559368?page=16"> Tunnelling Journal 15</a> <a title="TJ Oct/Nov 2025 page 17" href="https://secure.viewer.zmags.com/publication/62559368?page=17"> 15 minutes with… Örjan A Sjöström were then wri</a> <a title="TJ Oct/Nov 2025 page 18" href="https://secure.viewer.zmags.com/publication/62559368?page=18"> that tunnel from becoming inundated that day, by </a> <a title="TJ Oct/Nov 2025 page 19" href="https://secure.viewer.zmags.com/publication/62559368?page=19"> The 9m diameter TBM for the rail tunnel </a> <a title="TJ Oct/Nov 2025 page 20" href="https://secure.viewer.zmags.com/publication/62559368?page=20"> Tunnelling Journal 19</a> <a title="TJ Oct/Nov 2025 page 21" href="https://secure.viewer.zmags.com/publication/62559368?page=21"> HS2: Northolt drives complete With all four drive</a> <a title="TJ Oct/Nov 2025 page 22" href="https://secure.viewer.zmags.com/publication/62559368?page=22"> Northolt Tunnel update try and get some synerg</a> <a title="TJ Oct/Nov 2025 page 23" href="https://secure.viewer.zmags.com/publication/62559368?page=23"> Auto mation and Digitalisation in Conventional Tu</a> <a title="TJ Oct/Nov 2025 page 24" href="https://secure.viewer.zmags.com/publication/62559368?page=24"> Centre, sitting only 4m above the top of the tunn</a> <a title="TJ Oct/Nov 2025 page 25" href="https://secure.viewer.zmags.com/publication/62559368?page=25"> SCS JV is constructing </a> <a title="TJ Oct/Nov 2025 page 26" href="https://secure.viewer.zmags.com/publication/62559368?page=26"> 0121 508 6970 | mapei.co.uk Tunnelling Journal 25</a> <a title="TJ Oct/Nov 2025 page 27" href="https://secure.viewer.zmags.com/publication/62559368?page=27"> Q&A When it comes to attracting and retaining the</a> <a title="TJ Oct/Nov 2025 page 28" href="https://secure.viewer.zmags.com/publication/62559368?page=28"> and guidance, shift to a mindset of providing exp</a> <a title="TJ Oct/Nov 2025 page 29" href="https://secure.viewer.zmags.com/publication/62559368?page=29"> That’s the gift of transformational leadership. I</a> <a title="TJ Oct/Nov 2025 page 30" href="https://secure.viewer.zmags.com/publication/62559368?page=30"> | TUNNEL CONSTRUCTION </a> <a title="TJ Oct/Nov 2025 page 31" href="https://secure.viewer.zmags.com/publication/62559368?page=31"> The role of Directional Core Drilling in tunnelli</a> <a title="TJ Oct/Nov 2025 page 32" href="https://secure.viewer.zmags.com/publication/62559368?page=32"> The role of Directional Core Drilling in tunnelli</a> <a title="TJ Oct/Nov 2025 page 33" href="https://secure.viewer.zmags.com/publication/62559368?page=33"> core drilling. This method was used exclusively f</a> <a title="TJ Oct/Nov 2025 page 34" href="https://secure.viewer.zmags.com/publication/62559368?page=34"> Advances in Tunneling Technology | November 3-5, </a> <a title="TJ Oct/Nov 2025 page 35" href="https://secure.viewer.zmags.com/publication/62559368?page=35"> CONTACT US Tris Thomas Editorial Director Tel: + </a> <a title="TJ Oct/Nov 2025 page 36" href="https://secure.viewer.zmags.com/publication/62559368?page=36"> VE TECHNICAL SESSIONS | GLOBAL INDUSTRY LEADERS </a> <a title="TJ Oct/Nov 2025 page 37" href="https://secure.viewer.zmags.com/publication/62559368?page=37"> TUNNELLING JOURNAL OCTOBER/NOVEMBER 2025 October</a> <a title="TJ Oct/Nov 2025 page 38" href="https://secure.viewer.zmags.com/publication/62559368?page=38"> October/November 2025 www.tunnellingjou</a> <a title="TJ Oct/Nov 2025 page 39" href="https://secure.viewer.zmags.com/publication/62559368?page=39"> ELEVATED THINKING, UNDERGROUND This year marks a</a> <a title="TJ Oct/Nov 2025 page 40" href="https://secure.viewer.zmags.com/publication/62559368?page=40"> Comment The big question If you didn’t make it t</a> <a title="TJ Oct/Nov 2025 page 41" href="https://secure.viewer.zmags.com/publication/62559368?page=41"> NORTH AMERICAN NEWS MTA approves Second Avenue Su</a> <a title="TJ Oct/Nov 2025 page 42" href="https://secure.viewer.zmags.com/publication/62559368?page=42"> NORTH AMERICAN NEWS Gall Zeidler marks 25th anniv</a> <a title="TJ Oct/Nov 2025 page 43" href="https://secure.viewer.zmags.com/publication/62559368?page=43"> THE INSIDER Bob Goodfellow, PE, PEng, President, </a> <a title="TJ Oct/Nov 2025 page 44" href="https://secure.viewer.zmags.com/publication/62559368?page=44"> Pioneering smarter underground solutions From co</a> <a title="TJ Oct/Nov 2025 page 45" href="https://secure.viewer.zmags.com/publication/62559368?page=45"> Off screen A rapidly-growing Women in Tunneling i</a> <a title="TJ Oct/Nov 2025 page 46" href="https://secure.viewer.zmags.com/publication/62559368?page=46"> now that you’re not in a loud environment,” Chast</a> <a title="TJ Oct/Nov 2025 page 47" href="https://secure.viewer.zmags.com/publication/62559368?page=47"> www.tunnellingjournal.com Finale and curtain </a> <a title="TJ Oct/Nov 2025 page 48" href="https://secure.viewer.zmags.com/publication/62559368?page=48"> FINALE AND CURTAIN CALL Congested city streets</a> <a title="TJ Oct/Nov 2025 page 49" href="https://secure.viewer.zmags.com/publication/62559368?page=49"> TBM launch at Great Northern Way-Emily Carr Stati</a> <a title="TJ Oct/Nov 2025 page 50" href="https://secure.viewer.zmags.com/publication/62559368?page=50"> FINALE AND CURTAIN CALL TBM breaking through a</a> <a title="TJ Oct/Nov 2025 page 51" href="https://secure.viewer.zmags.com/publication/62559368?page=51"> www.tunnellingjournal.com Advancing tunneli</a> <a title="TJ Oct/Nov 2025 page 52" href="https://secure.viewer.zmags.com/publication/62559368?page=52"> KEEP YOUR PROJECT ADVANCING INTERNATIONAL HYPERB</a> <a title="TJ Oct/Nov 2025 page 53" href="https://secure.viewer.zmags.com/publication/62559368?page=53"> Extreme tunneling Even in North America, where ci</a> <a title="TJ Oct/Nov 2025 page 54" href="https://secure.viewer.zmags.com/publication/62559368?page=54"> path forward. “You need to get all the decision-m</a> <a title="TJ Oct/Nov 2025 page 55" href="https://secure.viewer.zmags.com/publication/62559368?page=55"> Disc cutter inspection at 3.0 bar </a> <a title="TJ Oct/Nov 2025 page 56" href="https://secure.viewer.zmags.com/publication/62559368?page=56"> EXTREME TUNNELING Los Angeles’ historic undergrou</a>