Xi Shi cuts in at West Island Line12 October 2011
TBM excavation has been launched on the Sai Ying Pun to Sheung Wan tunnels. The majority of tunneling for the West Island Line project is drill and blast due to mixed ground conditions. This began in July 2009.
Client MTR announced on Monday that the 6.5m Herrenknecht TBM, named Xi Shi began boring on 30 September. It will began boring the 592m uptrack tunnel to Sheung Wan, at which point it will be dismantled and brought back to the Sai Woo Lane launch shaft. A new cutter head will be installed and then construction of the 217m downtrack tunnel will begin.
The West Island Line will open for service in 2014.
Xi Shi's name was chosen from 800 suggestions made by local students