Jalan Besar update

Jalan Besar station is being built by the top-down method of construction where the excavation goes down a few metres before a slab is poured. The concrete is allowed to cure before excavation through access shafts continues to the next level where the next slab is poured again. This process is repeated till the excavation reaches the intended depth. The top-down method is usually used when excavation takes place in relatively build up locations - such an example would be Holland Village station along the Circle Line.

26 August 2013

26 August 2013

Additionally, the TBMs for this contract which includes the tunnel drives towards Bencoolen station, have been delivered and assembled. They are due to be launched this month for the 700m drives along Bencoolen Street, undercrossing the tunnels between Rochor and Bugis en route.

TBM cutterhead being lowered down
Photo credit - John Holland

21 September 2013

21 September 2013

21 September 2013

Photo credit - Peerapong Peetor Chotklang

The launch shaft for the station has an acoustic building that is being built over to minimise noise pollution for the nearby housing blocks. This is similar to the structure in place for King Albert Park station. As the lowering of the TBMs have been completed, works to close up the structure are progressing to allow tunneling work to commence.

6 November 2013

6 November 2013

6 November 2013