Projects
NORTH SOUTH CORRIDOR TUNNEL, SINGAPORE
The proposed North-South Corridor (NSC) comprises a 21.5 km long expressway between East Coast
Parkway and Admiralty Road West, Singapore. The present contract comprises an approximate route
length of 1.55 km cut-and-cover tunnels, two escape shafts and four ramps. The alignment of main
tunnels starts at Ophir Road after Victoria Street and ends at Bukit Timah Road.
The responsibility was to design the diaphragm wall as a retention system for the proposed
cut-and-cover tunnel while the sequences of excavation was mainly top-down method of
construction for 21.0m deep excavation from existing ground level. Finite Element Models using
PLAXIS software were used to estimate the serviceability and ultimate limit state analyses while
STAAD.pro model was used to estimate the design forces. Critical sections were analysed in the
PLAXIS 3D to estimate the deformation of existing live tunnels due to the excavation
Detail
MASS RAPID TRANSIT, MRT LINE 5: SOUTHERN ROUTE, BANGLADESH
The alignment of the above-mentioned route comprises around 17.4 km long tunnels and it has been
divided into two major segments. Segment one consists of 11 (eleven) underground MRT stations,
and 18.44 km of total twin bored tunnels while segment two comprises 4 (four) elevated MRT
stations and a 486 m long cut-and-cover tunnel and trough.
The responsibility was to analyse and design of precast segmental bored tunnels, cut-and-cover
tunnels, launching, receiving and ventilation shafts.
Impact assessment, development of response plan, ground instrumentation and monitoring plan. The
responsibility was also covered the technical specification and development of bidding
documents.
Detail
