Tuesday, 20 June 2017

Tagore Backfill

Filling works are in progress over the completed structure at Tagore which would site the 1 hectare trackworks staging ground to come. The final TBM C2 is about 75% completed and will complete by the next quarter.

Backfilling works and de-strutting over the concourse slab 

Springleaf Cast (II)

Structure of the Springleaf station is taking shape with the first section of roof slab completed.

Springleaf station

Sunday, 18 June 2017

Facility Building Cast (III)

The full face rock conditions experienced by the final 2 EPBMs from Springleaf have significantly hindered the progress over the last quarter with an average advancement rate of a single ring building per day. TBM 1 is about 30 rings from breakthrough and should complete within a month's time.

Tower crane erected to facilitate the RC works of the facility building superstructure

Saturday, 17 June 2017

TEL1 Tunnelling Completes

Bored tunnelling works have completed this month under Stage 1 of the project between Woodlands North, Mandai Depot and the Sembawang Airbase cut and cover tunnel site. 12 tunnel drives were launched using 3 Earth Pressure Balance machine 4 Slurry TBMs which bore through the weathered Bukit Timah Granite to complete the 8km network of mainline and reception tunnels beneath Woodlands.

For most of the tunnels, the basic structural completion (BSC) have already been achieved with the first stage concreting (FSC) for the track bed, together with brackets installation for the various SWC. Trackworks are slated to commence through the tunnels by the end of 2017, with the remaining SWCs gaining access from the 2nd half of 2018.

Mandai Depot Stabling Yard

Tuesday, 13 June 2017

Woodlands South Cast

Concourse slab of the station structure has been cast and excavation works are progressing down to the platform.

Excavation works of UPC to the future Woodlands Health Campus

Woodlands Cast (III)

Casting of the concourse level is midway completed across the station box, while excavation works at Entrance F, G and the subway link within the bus interchange have commenced.

T203 Woodlands site

Woodlands North Cast (IV)

Casting of the concourse slab at the station is largely completed and structural works are progressing up to the roof level of the station. The south crossover tunnel is completed and filling works are taking place to the roof level. Structural works on the overrun tunnel are underway.

Filling works at the completed south crossover tunnel

Sunday, 7 May 2017

May Tunnel Progress

Tunnelling works for Stage 1 of the line will be completed by next month with the final 100m long Woodlands bound tunnel being driven between LS2 and Woodlands South station. Concurrently, the twin TBMs from Springleaf will breakthrough at the RTS Facility Building, completing the longest mainline drives (2km) under the TEL project.

TEL 1&2 Tunnel Chart, May 2017
T206: Completed Changi Bound tunnel between LS2 and WDS under the second drive of TBM 3

Friday, 21 April 2017

Gardens By The Bay Cast

Casting of the permanent structure at the station is progressing at varying levels, with portions of the platform and tunnel walls along both bounds completed. The second phase of traffic realignment, to be implemented next month, will see Marina Gardens Drive reduced to a single lane dual carriageway.

Gardens By The Bay station site

Thursday, 20 April 2017

Marina South Cast

Casting of the station has reached the concourse level, while portions of the C&C tunnel roof have been completed.

Overview of the T227 open cut excavation site with T228 & T302 in the background

Wednesday, 19 April 2017

Marina Bay Excavation (IV)

Excavation works have presumably reached the upper platform level and is progressing down to the lower platform.

Commencement of shoring and excavation works at Entrance B

Tuesday, 18 April 2017

Shenton Way Cast (III)

Excavation works have reached the plantroom level and is progressing down to the upper platform level. Assembly of TBM 1 has completed and commencement of tunnelling works to Maxwell are slated to begin tomorrow.

Concourse slab completed at the station

Monday, 17 April 2017

Maxwell Cast

Bulk excavation and casting work continues at the Maxwell station.

Roof slab completed at zone 3 (bottom)

Sunday, 16 April 2017

Outram Park Excavation (II)

The concourse slab has been cast and excavation works for the station are now at the platform level of the station. The final realignment of Outram Road was carried out last month for the excavation of the new interchange linkways, and would remain in position till the end of the project. TBM2 has almost completed the Changi bound tunnel towards Maxwell.

TBM 1 re-assembly works at launch shaft towards Havelock

Saturday, 15 April 2017

Thursday, 13 April 2017

Great World Excavation (II)

The concourse slab for the station has been completed and excavation works are now progressing down to the platform level. Bored tunnel works are underway in both directions towards Orchard and Havelock stations.

Excavation works proceeding down to the platform level

Wednesday, 12 April 2017

Tuesday, 11 April 2017

Orchard Boulevard Cast (III)

Excavation works have reached the lower concourse level and casting of the structure is progressing. Excavation and casting of the platform and underplatform levels will be carried out through the year. Excavation works for the mining shaft for the underpass leading to entrance B have commenced at the facade of Camden Medical Centre along Grange Road.

Overview of T218 site

Saturday, 25 March 2017

Napier Excavation

Bored pile works have completed at the station and excavation works progresses.

Excavation works at station

Friday, 24 March 2017

Stevens D-walls (V)

The second portion of the stage 3 traffic diversion works had been implemented along Stevens Road last week, allowing for the construction of the remaining half of the station's diaphragm wall. Excavation works have commenced at Entrance C&D. 

The project's first tunnel completion for the 300m southbound tunnel between Dalvey LS and the station is due next week (TBM 4). Lack of soil profile understanding beneath private properties and portions of unfavorable geological conditions are hindering the tunnel progress towards Napier, as well as between Mount Pleasant and Stevens station.

Commencement of excavation works at Entrance C&D & Rectangular TBM launch shaft

Thursday, 23 March 2017

Mount Pleasant Cast

The platform and mezzanine levels of the station have been cast and RC works will progress up to the concourse level in the next quarter. TBM S-936 has also completed the first Changi bound tunnel towards Caldecott earlier this month.

Mount Pleasant Station

Friday, 10 March 2017

Caldecott Cast (III)

RC works for the station structure is progressing up to the concourse level.

Cross beams cast at Mezzanine 2 level (GL9.5-11.5)

Thursday, 9 March 2017

Piling at Upper Thomson (II)

Diaphragm wall structure for the station is finishing up and construction of the roof slab is being done. TBM 1 has completed its first drive to Upper Thomson station and relaunch for the second drive is being prepped.

D-wall, bored pile, JGP, WSM and excavation works for roof slab construction taking place concurrently at Upper Thomson

Wednesday, 8 March 2017

Bright Hill Excavation

Excavation works are in full swing at the station box. RC roof of the north cut and cover tunnel has also been cast. Main drive of the 4 TBMs are progressing and should be completed from the end of Q3 2017 onwards.

Excavation works in full swing at the station box

Tuesday, 7 March 2017

Mayflower Cast (III)

Basic structure of the entrances are progressively completing accompanied by backfilling works on the surface.

Entrance D backfill & casting of surface perimeter

Monday, 6 March 2017

Sunday, 5 March 2017

Tagore Cast (IV)

Structure of the concourse slab is mostly completed for the station box. TBM B drive is over 85% completed now and breakthrough at Springleaf is expected in early Q2. TBM C2 will follow suit a quarter later. Staging works for trackwork will commence at Tagore by year end with handover of site possession to CTCI at the later part of the year.

Concourse slab cast at Tagore

Friday, 3 March 2017

Springleaf Cast

RC works for the platform and concourse level are taking place at the station box following the completion of excavation works.

Excavation works completed at the Springleaf station

Thursday, 2 March 2017

Facility Building - TBM 3 Breakthroughs

Piling works have recommenced at the facility building site, this time for the superstructural works. TBM 3 has broken through the facility building site from SBAB, while TBM 4 is meters away beneath the Mandai Lake Flyover awaiting settlement remedial actions. TBM 1 and 2 from Springleaf have almost reached the facility building and would complete by the 2nd quarter.

TEL1&2 Tunnel Chart, March 2017
Site filled back for bored pile works for facility building

Wednesday, 1 March 2017

Mandai Depot - TBM 4 Breakthroughs

Tunnelling works for the T206 project are wrapping up with 8 of the 10 bored tunnels completed. Cross passage excavation and the first stage concreting works are taking place within the tunnels. Structural, fittings and trackworks are progressing at the depot.

Stabling Yard nearing structural completion

Tuesday, 28 February 2017

Woodlands South Excavation (IV)

The roof slab for the entire station is now completed, with filling works in progress prior to the start of bulk excavation on the south side. Bottom up excavation works for entrance A and C are completed and commencing respectively. Rock blasting works are being done at the concourse level and Entrance B.

Roof slab completed at south zone

Woodlands Cast (II)

Casting works for the station have progressed up to the concourse slab.

Excavation & strutting at crossover tunnel

Monday, 27 February 2017

Woodlands North Cast (III)

Casting work continues at the Woodlands North site. The platform level of the station is completed and formwork is being propped for the casting of the concourse level. Structure of the north crossover tunnel is forming up.

South crossover tunnel structure nearing completion

Tuesday, 31 January 2017

January Tunnel Progress

The 36th and third last TBM for the line was lowered down the Great World launch shaft earlier this month, with several more bored tunnels having been completed since.

TEL1&2 Tunnel Chart, January 2017
TEL3 Tunnel Chart, January 2017