ABSTRACT
Since 1995, the Land Transport Authority (LTA) has been developing Singapore’s Mass Rapid Transit (MRT) system. The Thomson-East Coast Line (TEL) is the sixth MRT line, spanning from the north of Singapore to the city centre and extending along the east coast to the airport. This fully underground line spans over 43km. Civil works commenced in 2014 in the northern section, and the line’s opening is planned in 5 stages, between 2020 and 2026. This paper describes how specific engineering challenges on TEL in varying geology were successfully overcome through a combination of customized TBM design solutions such as the use of dual crushers, screw conveyor pipe extensions; and through specialized ground treatment techniques such as ground freezing.
