[CS2-01]UNDERPINNING AND TUNNELLING THROUGH TRAFFIC VIADUCT PILE FOUNDATION
*周 乐庆1、星 光二郎1、草野 孝三1(1. 西松建設 国際事業本部 )
キーワード:
アンダーピニング工法、既設杭撤去、カッタービット、シールド機械
Contract C882 covers the construction of the Keppel Station, cut & cover tunnels and its associated twin bored tunnels connecting to Harbourfront Station and Cantonment Station as a part of Circle Line 6 (CCL 6) Mass Rapid Transit (MRT) Project in Singapore. This paper summarises the construction methodology of underpinning work, tunnelling work and the structural movement during the key construction activities namely, load transfer, disconnection of existing piles from pile cap and TBM mining through the left-in piles for one of the piers, Pier FP9.
