Subsidence at Singapore's Circle Line

摘要

Tunnelling works were stopped late last month on part of the C855 section of the Circle Line extension in Singapore to investigate subsidence at the ground surface over a slurry TBM and perform extra grouting works. Following the rapid backfilling of the hole that opened up in the Cornwall Gardens road, works were continuing to restore the local area following some utility disruption to houses. The location of the hole is between the stations being built at Farrer and Holland Village. A hole that was 3m deep and measured 7m by 8m had formed above the location of the TBM in the early hours of Saturday, 24 May.