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<br /> INTERNATIONAL EDITION<br /> The official magazine of the British Tunnelling Society October 2020<br /> CROSS<br /> PASSAGES<br /> Groundwater control and<br /> ground treatment<br /> METRO LOS ANGELES, USA<br /> SUCCESS STORY<br /> IN CALIFORNIA<br /> WITH 10 TBMS<br /> 120 million passengers are travelling through Los Angeles<br /> every year. In the past 15 years a total of 10 EPB Shields<br /> have been built for more than 35 km of new metro lines.<br /> Herrenknecht guarantees the local support with their<br /> office in Sumner, WA.<br /> herrenknecht.com/MetroLA<br /> Client:<br /> Los Angeles Metropolitan Transportation Authority<br /> Customer:<br /> Purple Line Section 3 – Frontier-Kemper Constructors, Inc. /<br /> Tutor Perini JV<br /> Purple Line Section 2 – Frontier-Kemper Constructors, Inc.<br /> Purple Line Sec<a title="Tunnels October 2020 page 1" href="https://secure.viewer.zmags.com/publication/f473eb78?page=1"> </a> <a title="Tunnels October 2020 page 2" href="https://secure.viewer.zmags.com/publication/f473eb78?page=2"> METRO LOS ANGELES, USA SUCCESS STORY IN CALIFO</a> <a title="Tunnels October 2020 page 3" href="https://secure.viewer.zmags.com/publication/f473eb78?page=3"> COMMENT INDUSTRY NEEDS A WTC2021 So, anoth</a> <a title="Tunnels October 2020 page 4" href="https://secure.viewer.zmags.com/publication/f473eb78?page=4"> THE ROBBINS COMPANY DEFY EXPECTATIONS </a> <a title="Tunnels October 2020 page 5" href="https://secure.viewer.zmags.com/publication/f473eb78?page=5"> LINING SYSTEMS LASTING CORROSION PROTECTION FOR </a> <a title="Tunnels October 2020 page 6" href="https://secure.viewer.zmags.com/publication/f473eb78?page=6"> $IWHU\HDUVLQWKH,QGXVWU\ZRUNLQJRQVRPHRIWKHPRVW3UHV</a> <a title="Tunnels October 2020 page 7" href="https://secure.viewer.zmags.com/publication/f473eb78?page=7"> CONTENTS News 8 News 12 The big pictur</a> <a title="Tunnels October 2020 page 8" href="https://secure.viewer.zmags.com/publication/f473eb78?page=8"> NEWS / WORLD WTC2020 OPENS SUCCESSFULL</a> <a title="Tunnels October 2020 page 9" href="https://secure.viewer.zmags.com/publication/f473eb78?page=9"> WORLD / NEWS BARHALE IN £22M THAMES WA</a> <a title="Tunnels October 2020 page 10" href="https://secure.viewer.zmags.com/publication/f473eb78?page=10"> NEWS / WORLD MANILA ACCEPTS FIRST TWO </a> <a title="Tunnels October 2020 page 11" href="https://secure.viewer.zmags.com/publication/f473eb78?page=11"> WORLD / NEWS LÖTSCHBERG REPAIR WORKS S</a> <a title="Tunnels October 2020 page 12" href="https://secure.viewer.zmags.com/publication/f473eb78?page=12"> NEWS / THE BIG PICTURE </a> <a title="Tunnels October 2020 page 13" href="https://secure.viewer.zmags.com/publication/f473eb78?page=13"> THE BIG PICTURE / NEWS Left: Viad</a> <a title="Tunnels October 2020 page 14" href="https://secure.viewer.zmags.com/publication/f473eb78?page=14"> TECHNICAL / CROSS PASSAGES GROUNDWATER </a> <a title="Tunnels October 2020 page 15" href="https://secure.viewer.zmags.com/publication/f473eb78?page=15"> CROSS PASSAGES / TECHNICAL </a> <a title="Tunnels October 2020 page 16" href="https://secure.viewer.zmags.com/publication/f473eb78?page=16"> TECHNICAL / CROSS PASSAGES </a> <a title="Tunnels October 2020 page 17" href="https://secure.viewer.zmags.com/publication/f473eb78?page=17"> CROSS PASSAGES / TECHNICAL </a> <a title="Tunnels October 2020 page 18" href="https://secure.viewer.zmags.com/publication/f473eb78?page=18"> TECHNICAL / CROSS PASSAGES Typically</a> <a title="Tunnels October 2020 page 19" href="https://secure.viewer.zmags.com/publication/f473eb78?page=19"> COLUMN Rules of Thumb Keivan Rafie Keivan is Depu</a> <a title="Tunnels October 2020 page 20" href="https://secure.viewer.zmags.com/publication/f473eb78?page=20"> REPORT / TAMOIOS HIGHWAY DUPLICATION </a> <a title="Tunnels October 2020 page 21" href="https://secure.viewer.zmags.com/publication/f473eb78?page=21"> TAMOIOS HIGHWAY DUPLICATION / REPORT </a> <a title="Tunnels October 2020 page 22" href="https://secure.viewer.zmags.com/publication/f473eb78?page=22"> REPORT / TAMOIOS HIGHWAY DUPLICATION </a> <a title="Tunnels October 2020 page 23" href="https://secure.viewer.zmags.com/publication/f473eb78?page=23"> TAMOIOS HIGHWAY DUPLICATION / REPORT </a> <a title="Tunnels October 2020 page 24" href="https://secure.viewer.zmags.com/publication/f473eb78?page=24"> REPORT / TAMOIOS HIGHWAY DUPLICATION </a> <a title="Tunnels October 2020 page 25" href="https://secure.viewer.zmags.com/publication/f473eb78?page=25"> April 2019 Africa </a> <a title="Tunnels October 2020 page 26" href="https://secure.viewer.zmags.com/publication/f473eb78?page=26"> REPORT / WERRINGTON GRADE SEPARATION </a> <a title="Tunnels October 2020 page 27" href="https://secure.viewer.zmags.com/publication/f473eb78?page=27"> WERRINGTON GRADE SEPARATION / REPORT </a> <a title="Tunnels October 2020 page 28" href="https://secure.viewer.zmags.com/publication/f473eb78?page=28"> REPORT / WERRINGTON GRADE SEPARATION </a> <a title="Tunnels October 2020 page 29" href="https://secure.viewer.zmags.com/publication/f473eb78?page=29"> WERRINGTON GRADE SEPARATION / REPORT </a> <a title="Tunnels October 2020 page 30" href="https://secure.viewer.zmags.com/publication/f473eb78?page=30"> REPORT / GTX KOREA TWO-WAY TUNNELLING </a> <a title="Tunnels October 2020 page 31" href="https://secure.viewer.zmags.com/publication/f473eb78?page=31"> GTX KOREA / REPORT Table 1: Overview </a> <a title="Tunnels October 2020 page 32" href="https://secure.viewer.zmags.com/publication/f473eb78?page=32"> REPORT / GTX KOREA Left:</a> <a title="Tunnels October 2020 page 33" href="https://secure.viewer.zmags.com/publication/f473eb78?page=33"> COVID 19 / REPORT NOT GOING VIRAL </a> <a title="Tunnels October 2020 page 34" href="https://secure.viewer.zmags.com/publication/f473eb78?page=34"> REPORT / COVID 19 projects,” says Ji</a> <a title="Tunnels October 2020 page 35" href="https://secure.viewer.zmags.com/publication/f473eb78?page=35"> COVID 19 / REPORT </a> <a title="Tunnels October 2020 page 36" href="https://secure.viewer.zmags.com/publication/f473eb78?page=36"> REPORT / COVID 19 “Our shop flo</a> <a title="Tunnels October 2020 page 37" href="https://secure.viewer.zmags.com/publication/f473eb78?page=37"> EVENTS Events 2020 Bauma China 24 – 27 Novembe</a> <a title="Tunnels October 2020 page 38" href="https://secure.viewer.zmags.com/publication/f473eb78?page=38"> BUSINESS DIRECTORY To advertise here call Cli</a> <a title="Tunnels October 2020 page 39" href="https://secure.viewer.zmags.com/publication/f473eb78?page=39"> BUSINESS DIRECTORY MONITORING EQUIPMENT </a> <a title="Tunnels October 2020 page 40" href="https://secure.viewer.zmags.com/publication/f473eb78?page=40"> BTS CORPORATE MEMBERS To advertise here </a> <a title="Tunnels October 2020 page 41" href="https://secure.viewer.zmags.com/publication/f473eb78?page=41"> BTS CORPORATE MEMBERS If you wish to be</a> <a title="Tunnels October 2020 page 42" href="https://secure.viewer.zmags.com/publication/f473eb78?page=42"> CONTACTS Contact us Editorial Geo De m rge et</a> <a title="Tunnels October 2020 page 43" href="https://secure.viewer.zmags.com/publication/f473eb78?page=43"> iSURE® SOFTWARE DRILL AND BLAST INTELLIGENCE iSU</a> <a title="Tunnels October 2020 page 44" href="https://secure.viewer.zmags.com/publication/f473eb78?page=44"> </a>