Lentor - Tunnelling Completes

Bored tunnelling works for TBM 1 completed earlier this week, concluding the 18 months long Changi bound tunnel drive from Lentor to Mayflower station through the 5XO site. Its sister TBM 2 is 91% out of the 970-ring drive and targeted to complete by the end of the month. The tunnel roof structure of the 5XO is completed and backfilling works have commenced. Structural works for the station entrances are progressing on the surface level.

Lentor Station

Entrance A RC structure from roof slab to ground level

Tunnel ventilation & escape staircase 1 built together with the entrance

Entrance B ground sla

Entrance C

RC works within the launch shaft

RC works for entrance D concourse walls

90 ring balance for TBM 2 to completion

Entrance E

Backfilling works over subway & RC works at ground level

5XO site

Tunnel roof slab cast

Tunnel roof structure at the crossover point

Commencement of backfilling works at the north end

5XO site