The NSL and TEL platforms could only be connected by breaking through the foundation of the NSL station.
Connecting the station platforms of the NSL and Thomson-East Coast Line at Orchard was only possible with careful planning and delicate construction.
From February 2014 to June 2022, engineers and workers had to ensure that trains on the NSL continued to run smoothly above the construction site by doing frequent checks to ensure that the NSL tunnels and station moved only marginally, within a certain safety threshold. Mr Lim said: “We did not dig Orchard Boulevard partly because it is very deep, and also because it would cause the existing NSL tunnels to move... So we had no choice but to use this method.”
Next, alternative supporting structures had to be built underground, as some of the original foundation piles of the Orchard NSL station and platform needed to be cut to make way for the linkway. Piles are tall cylindrical columns drilled into the ground to support a structure. The Orchard TEL station opened in November 2022 as one of the 11 stations in the third stage of the TEL, which runs from Stevens station to Gardens by the Bay station.
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