Saturday, 21 May 2016

May Tunnel Progress

The second bored tunnel was completed at the T208 project earlier this month, lining the Changi bound tunnel between Tagore and Lentor. Despite NFM's inagurual entry into the Singapore metro tunnelling market, the french-manufactured machine has set a new record of excavating and lining 23 rings (32.2m) in 24 hours, in addition to completing a 100-ring excavation within 6 days in March. TBM A will now commence dismantling and be retired after having completed the 8-month tunnel drive.

Completion of TBM A drive (T208, John Holland)

Tuesday, 19 April 2016

Gardens By The Bay Excavation

Excavation works are now underway at the station box. The diaphragm wall of the GBME shaft was completed in January and a pile test is currently being carried out on the surface. Excavation of the retrieval shaft would commence by the 2nd quarter.


Shoring and decking works for the first strut layer at the Gardens By The Bay station

Monday, 18 April 2016

Marina South Excavation (II)

Excavation works commences at the cut and cover tunnel, and continues within the Marina South station box. The formation level at the launch shaft has been reached and casting of the base slab is proceeding. An assembled gantry crane accompanied with the delivered CREG earth pressure balance TBM sits adjacent to the shaft surface. 

Marina Boulevard has been decked and realigned for the remaining pipe pile construction.


Commencement of shoring works for the T227 cut and cover tunnels