Diaphragm wall structure for the station is finishing up and construction of the roof slab is being done. TBM 1 has completed its first drive to Upper Thomson station and relaunch for the second drive is being prepped.
D-wall, bored pile, JGP, WSM and excavation works for roof slab construction taking place concurrently at Upper Thomson |
Pipe jacking shaft |
Diverted drain |
Shoring and excavation along completed d-wall panel |
Excavation to roof slab level at entrance A |
Wet soil mixing |
Bored pile works |
D-wall works at entrance D |
Entrance C |
ULS |
Completed Woodlands bound tunnel between ULS and UTS |
First drive of TBM 1 completed towards Upper Thomson (bottom left). Craddle installed for relaunch on Changi bound tunnel (top left) |
Segment yard for TBM 2 and TBM 3, progress is about 20% completed |
Replacement shields and cutterhead of TBM 1 |
Removal of backup car no.9 (Photo: Panupong Chamma, Mar 13) |
Backup car 7 (Photo: Panupong Chamma, Mar 13) |
Backup gantries retrieved at the shaft surface (Photo: Panupong Chamma, Mar 13) |
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