The second Robbins EPB broke through on 11.06.2014, marking the completion of twin tunnels at San Francisco’s Central Subway in California, USA. The first of the two machines holed through a week earlier. The machines achieved swift advance rates of up to 40 m in 24 h and 513 m/month. The Central Subway is the second phase of the San Francisco Municipal Transportation Agency’s (SFMTA) Third Street Light Rail Transit Project. Read the press release and visit www.robbinstbm.com. 26/14.
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