Woodlands Excavation (II)

Excavation works have commenced across the station box. Removal of the top soil reveals a coarse ground conditions at a shallow formation. The rock head of the Bukit Timah Granite is extremely high around the site and extensive rock blasting can be expected throughout the course of the excavation works over the next year.

The previously-excavated section of the crossover tunnel has now been decked over in accommodation of the impending traffic realignment of the Avenue 2/5 junction. The remaining half of the crossover tunnel will then be constructed after the diversion has taken place.

The temporary bus interchange is almost ready and on track to open around January.

T203, Woodlands Excavation works

Woodlands North - TBM Launch

The TBM launching ceremony at the Woodlands North site was held today. The ceremony was celebrated on Saturday by Penta Ocean and the LTA ahead of the commencement of excavation works by the Changi Bound TBM on Monday. The TBMs here will launch with the full ancillary equipment pre-installed, most notably including the backup gantries. 

Extremely seldom do the space and site conditions permits for such convenience, and would usually require the adjacent cut-and-cover structure to be excavated to the equivalent formation level. However the uniqueness of the terrain at the Woodlands North site grants the complete assembly of the machine prior to launching.

Piling works continue at the station. Construction of a new sewer mains is also taking place at the north end of the site along Admiralty Road West, and will run alongside the length of the station box. Ground improvement works continue along the tunnel route at the diverted Woodlands Dr 91, outside Republic Polytechnic.

Launch of the first 2 Kawasaki Slurry TBMs

T202 TBM launching ceremony (Nov 28) 

November Tunnel Progress

TEL 1/2 Tunnel Chart, November 2015

Contract T206

The first Earth Pressure Balance TBM for the Thomson-East Coast Line was lowered down into the Launch Shaft 1 last night. Manufactured by STEC, the EPB machine has commenced assembly works within the launch shaft and will do its first drive along the Reception Tunnel 3 (RT3) towards Mandai Depot. Tunnelling works should commence in January 2016.

Ring progress as of November 16,

S-893 - Changi Bound Tunnel: Ring 58 (9% completed) - Transitioning to main drive & installation of backup gantries

S-894 - Woodlands Bound Tunnel: Ring 11 (2% completed)

Ring progress as of November 29,

S-893 - Changi Bound Tunnel: Ring 70 (12% completed) - Transitioning to main drive & installation of backup gantries

S-894 - Woodlands Bound Tunnel: Ring 11 (2% completed)

Hoisting of the front shield (Nov 22) - Photo Cr: Ramalingam Rama