Friday 30 September 2016

Great World Cast

Construction of the roof slab is taking place and is midway completed at the Great World station. Excavation works have commenced at the north end of the station, as well as the subway to River Valley road.

T220 Great World site

Thursday 29 September 2016

Orchard Cast (II)

D-walling works for the project have been fully completed at the cut and cover tunnel ahead of schedule and excavation works have commenced there. Basement casting of the concourse slab is taking place at the station box. A major traffic realignment is being prepared at the Orchard/Paterson intersection for the underpass works.

Completed roof slab at Orchard station

Tuesday 27 September 2016

Orchard Boulevard Excavation

Top-down construction of the Orchard Boulevard Station have commenced with excavation works reaching the roof slab. Concreting works will take place in the next quarter.

Excavation to the reduced level of the roof slab

Monday 26 September 2016

Caldecott Cast

Casting works are in progress at the station. Mining of the southbound tunnel at the cripple siding is completed.

Caldecott site illuminated in the west precinct of Toa Payoh

Tuesday 20 September 2016

Piling at Napier (VI)

Piling works continue at the station box and is set to complete by year end upon 2 more traffic realignments along Cluny Road. Excavation works have just commenced at the south entrance. TBM S-930 has transitioned to its main drive and will continue advancement to the Orchard Boulevard Station.

Telescopic excavator deployed for the excavation of the south entrance

Monday 19 September 2016

Stevens D-walls (IV)

D-walling works progresses at the Stevens station. TBM 1 and TBM 2 have completed initial drive works and are transitioning to the main drive, while TBM 3 has just started tunnel excavation works.

T216 Stevens Station site

Saturday 17 September 2016

Mount Pleasant Excavation (III)

Excavation works are progressing through the S5-S6 layer and should wrap up by year end. TBM S-936 is in the midst of transitioning to its main drive.

T215 Mount Pleasant Station

Thursday 15 September 2016

Upper Thomson - Canal Diversion

The canal running parallel to the station has been diverted and demolishment of the canal is taking place along the diverted stretch of the northbound carriageway. The 3rd traffic diversion will be fully implemented upon the completion of bored pile works at the center of the station box, following which the demolishment and backfilling of the remaining stretch of canal, together with the crucial diaphragm wall works would take place.

A heavy-duty crane is currently being assembled at the Upper Thomson Launch Shaft, awaiting the arrival and subsequent lowering of TBM 3 next Friday. TBM 1 has completed its initial drive and is transitioning to its main drive. TBM 2 is on its initial drive to Caldecott.

Completion of canal diversion and demolishment of former canal in progress

Tuesday 13 September 2016

Bright Hill - POB launch

The 2 replacement POBs for the project were launched at Ang Mo Kio Avenue 3 and Upper Thomson Road in August and September respectively. The new bridges are simply spanned with staircases re-positioned to avoid the tunnel alignments leading up to the Bright Hill station. TBM 2 is progressing on its initial drive to Upper Thomson and the other 3 TBMs are being assembled up in the launch shafts. 

Another realignment of Sin Ming Avenue took place earlier this quarter to facilitate the final stretch of secant bored pile works south of the station box. Excavation and basement RC works have commenced at entrance B.

Realignment of Sin Ming Avenue (west bound carriageway) for final stretch of SBP works

Monday 12 September 2016

Mayflower Cast

Casting of the concourse slab at the Mayflower station started in the previous quarter and and is largely completed at the subways and entrances. Excavation works are at the mezzanine level now.

T210 Mayflower Station

Sunday 11 September 2016

Lentor Excavation (III)

The remaining diaphragm wall panels have been completed at the Lentor station and excavation for the basement roof slab for the second stage of zone 2, and zone 3 are in progress and will be cast by the 4th quarter. Bulk excavation works are progressing at zone 1.

TBM 1 has completed conversion to its main drive and is now under the intersection of Avenue 9. TBM 2 was just launched last month and is on it's initial drive to 5XO.

Excavation for the RC construction of the basement roof slab

Saturday 10 September 2016

Tagore Cast (III)

TBM C was relaunched in July. The removal of the temporary rings and reaction frame at the lauch shaft last month completes the TBM's conversion to its main drive. TBM B is now halfway through its tunnel drive to Springleaf and under the Seletar Expressway. The concourse slab at Tagore has been cast.

TBM B and TBM C2 progress as of September 8

Thursday 8 September 2016

Wednesday 7 September 2016

Facility Building Cast (II)

The RTS facility building is progressively being constructed upwards. Main drives are underway across all 4 TBMs.

TBM 3 and TBM 4 progress from Sembawang Airbase to RTS Facility Building
TBM 1 and TBM 2 progress from Springleaf Station to RTS Facility Building
RTS Facility Building

Monday 5 September 2016

S-893 Reassembly

Having completed the Changi Bound tunnel from LS2 to Woodlands, the re-assembly of S-893 (TBM 1) is taking place at LS1 for the RT3 tunnel drive to Woodlands Station. The TBM is expected to launch next month and breakthrough by mid-2017. TBM 3 has been retrieved from Mandai Depot and is held at the surface of LS2, awaiting to be reassembled for the Changi bound tunnel drive to Woodlands South Station.

Launch Shaft 1/ ES1

Sunday 4 September 2016

Woodlands South Excavation (II)

The diaphragm wall for the southern zone of the station box and entrance A have been completed and excavation works are underway here. Bulk excavation works for the station are in progress at the completed north zone. The final D-walling works for the project are in progress at entrance C.

Shoring works at entrance A

Saturday 3 September 2016

Woodlands Excavation (V)

Bulk excavation works for the station box have reached the S5 layer and is nearing the formation level. Bored pile works are still being done at the crossover cut and cover tunnel.

T203 Woodlands Station

Thursday 1 September 2016

Woodlands North Cast

Casting of the station's underplatform level is in progress. The tunnel walls for the south crossover tunnel have been concreted, and casting of the roof and subsequent waterproofing works are taking place as the concreting works progresses southwards. Both TBMs are nearing the completion of their tunnel drives to Woodlands station.

T202 Woodlands North Station