Le shield du tunnelier a fini englouti dans un bloc de béton, il va plus jamais creuser. Le reste a été démonté iirc.
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That’s pretty much how it goes for just about all tunneling machines out there. They are one use machine purpose built for a single job. Fortunately, they aren’t all that expensive when you consider just how costly transit projects are. To be had, I do beleive that the existing tunnel is in good hard rock under the airport parking, so the rest of the tunnel can probably be dug safely with mechanical excavation.
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Very possible that it’s not REM-related, but two weeks ago I saw a crew working on what looked like taking soil samples in the parking lot south of the station. The holes were filled in when I came back in the evening.
I was in a rush so I wasn’t able to get pictures from a good angle, but the setup looked very similar to this:
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Le REM de l’Est est de retour! 
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