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TBM breakthrough at Perth's Forrestfield-Airport Rail Link project
8 km boring for Grace, the TBM is over with the breakthrough the through the Bayswater dive structure. Sandy, the other TBM is expected to do the same sometime in May this year.
https://tunnellingjournal.com/first-forrestfield-airport-link-tbm-completes-challenging-journey/
Sandy the TBM too, breaksthrough in Bayswater dive structure. Sandy is ahead of original estimate of May. This marks the end of boring for the Forrestfield-Airport Link, part of the Metronet project in Western Australia.
Boring of the 16 kilometres of tunnels, 8 in direction,under the Swan river and the Perth Airport took around 900 days and completed with 9000 rings.
The team has literally bored through the coronavirus days.
https://www.miragenews.com/ground-breaking-milestone-on-metronet-project/
cover tunnel photo by: Matt Brown from London, England / CC BY
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Grace the TBM is done with the 8km boring.
https://tunnellingjournal.com/first-forrestfield-airport-link-tbm-completes-challenging-journey/
#metronet #perth
First Forrestfield-Airport Link TBM completes challenging journey
tunnellingjournal.comIn a major milestone for METRONET's Forrestfield-Airport Link project in Perth, TBM Grace has broken through the Bayswater dive structure, marking the end of her 8km journey. Grace is the first of the project’s two Herrenknecht Variable Density TBMs...