Orchard D-walls

Earth retaining structural works for the new Orchard Station have just commenced this week. 3 machines for the D-walling are currently on the site. 2 grabs are now excavating the D-wall for the launch shaft as well as part of the station. Behind them, a hydraulic cutter is on standby to take over and excavate the rocks that will be encountered in the panel closer to the formation level.

A single Herrenknecht slurry TBM (S-963) will be launched from the shaft and execute 2 drives towards Orchard Boulevard to complete both bored tunnels. Load tests are being carried out across the station footprint, while SI and site clearing works have started in front of ION Residences.

D-walling of the launch shaft (extreme left of the picture)

Orchard Boulevard - Preparations to Divert

D-walling works continue at the Orchard Boulevard station. A minor road diversion for Grange Road is being prepared and will be implemented in about 2 weeks time. The diversion is necessary for the construction of the Diaphragm wall beneath part of the existing road.

North of the station, a road diversion has taken place in front of the Hotel Jen (former Traders Hotel) by the unrelated PUB Stamford Diversion Canal Phase II project. This is another infrastructural project taking place concurrent with the construction of the Thomson Line, with the second interface at Great World.

Preparations to divert Grange Road (foreground)

Napier - Preparations to Divert

Canal diversion works have been on going at the Napier site for the past 2 months. The realigned canal will be rerouted towards the south, away from the Singapore Botanic Gardens. Preparatory work for the first traffic diversion - which will run parallel to the realigned canal, have also commenced and should be implemented by the end of this quarter. Piling works continue on Gleneagles side.

It is noteworthy that the TBM from the unrelated SPPA EW2 transmission cable tunnel project has reached the west end of the T217 site and will spend the next month or 2 tunnelling down Holland/Napier Road, perpendicularly beneath the proposed Napier station box. This is one of 3 sites whereby the TEL & cable tunnel project boundaries interface - the other 2 being Upper Thomson and Springleaf.

March 30 - Canal Diversion to the right of the picture which cuts into a portion of the launch shaft outline