Tagore Trackworks

CTCI has taken full possession of the staging ground from T208 since the beginning of the year. 2 gantry cranes have been assembled at the site, with track-laying equipment being brought in ahead of the commencement of trackworks towards Lentor Station.

T250 site mobilization activity at Tagore

Springleaf Backfill

Filling and compaction works are taking place over the completed structure of the station. Construction of the permanent utilities and carriageway of Upper Thomson Road are concurrently taking place in preparations for the Stage 3 traffic realignment scheme. Construction of entrance B2 has started.

Springleaf Station

Tagore - SWC Handover

The system wide contract (SWC) works have started with the partial site handover from T208. Backfilling works are in progress across the remaining 57m portion around the north launch shaft, together with the RC works for the Changi bound trackway portal structure.

Tagore Site handed over to SWCs between GL5-16

Springleaf - Basic Structure Completion

Casting of the station's roof slab has almost entirely completed and waterproofing works are in progress. RC works for the roof-ground level structure at the entrances and ventilation shafts have also taken place. The team has taken back possession of the launch shaft from T207 with structural works of the tunnel in progress. Backfilling works will commence from the next quarter onwards, and the realignment of Upper Thomson Road will take place after the hacking of the d-wall panels.

Completed roof slab at Springleaf Station

Tagore Backfill (II)

The Tagore site has begun demobilization works by the T208 team as it prepares to handover the site to CTCI and other SWCs for the temporary staging area works between Tagore and Mount Pleasant. The STP and gantry cranes have been demobilized, with hardcore compacted above the station box. The FSC, cross passage and bracket installation works are ongoing for the twin tunnels towards Springleaf.

Tagore C&C site

Springleaf Cast (III)

Structure of the station box is largely completed with about 2/3 of the roof slab volume cast. BSC is scheduled by the end of the year.

Springleaf Station

August Tunnel Progress

The 2km long twin tunnels between Springleaf station and the RTS Facility Building have completed under the T207 project. These are the longest single mainline tunnel drives achieved under the MRT construction since the Circle Line 4 project a decade ago. TBM 2 brokethrough the facility building overnight (Jul 31), while TBM 1 completed the Woodlands bound tunnel on July 9.

Together with the completion of TBM C2 at Springleaf under the T208 project, bored tunnelling works are officially completed under the Civil Team 1 projects. With 4 TBM drives completed in July, 6 TBMs remain between 5XO and Caldecott station under Stage 2 of the line.

Envisaged completion for remaining 6 TBMs under TEL2:
T209 TBM 1/2 - Q4 2017
T211 TBM 1 - Sep 2017
T212 TBM 1 - Q4 2017
T212 TBM 2/3 - Q1 2018

TEL1/2 Tunnel Chart, July 2017

T207: TBM 1 breakthrough at Facility Building on July 9 (Photo: Raju)

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

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

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

Tagore Cast (IV)

Casting of the concourse and platform structures are ongoing at Tagore.

TBM B Progress - R504 (706m, 64% completed)
TBM C2 Progress - R367 (514m, 47% completed)

Tagore C&C tunnel

Springleaf Excavation (IV)

Excavation works are ongoing at nearing completion at the station box.

Springleaf Station

November Tunnel Progress

Tunnelling works for the line have been ongoing for 15 months now. 11 bored tunnels have been completed.

TEL1/2 Tunnel Chart, November 2016

T202 - Breakthrough of TBM 2 at Woodlands Station on October 10. This is the first contract to complete all bored tunnel excavation

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

Springleaf Excavation (III)

Bulk excavation works continue at the Springleaf Station.

July Tunnel Progress

Tunnelling works are underway along all the projects along stages 1 and 2 of the line, with the first slurry TBM for the T211 project launched at Bright Hill this week. 5 bored tunnels have been completed by the first half of the year and a further 5-8 tunnels are envisaged to complete by year end.

TEL1/2 Tunnel Chart, July 2016

T206 - Launch preparations for the second drive of TBM 4 for reception tunnel 1 at Sembawang Airbase C&C (Photo credits: LTA)

Tagore

Twin bored tunnels to Lentor station have been completed by TBM A and TBM C1. TBM B is now 230 rings into the Woodlands Bound excavation to Springleaf, a third of the tunnel lined. TBM C2 is in the midst of assembly and refitting works for the Changi bound drive.

Springleaf Excavation (II)

Deep excavation works progresses at the Springleaf Station with the S2 strut layer installed.

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)