![]() The sprayed concrete lining (SCL) tunnelling fully intercepted four under-reamed piles. This eight-storey two-level basement building, owned by The Worshipful Company of Grocers, was built in the 1970s and is supported on 25 large diameter unreinforced under-reamed piles in London Clay. The unprecedented pile interceptions required at the Princes Court building won the 2019 BGA Fleming Award. An extensive instrumentation and monitoring programme was established to safeguard existing infrastructure assets and buildings. The tunnelling and underground excavation works commenced in 2016 and excavated their way around a ‘rabbit warren’ of existing tunnels and beneath many significant buildings in the City of London. ![]() The Transport for London Bank Station Capacity Upgrade (BSCU) project is reconstructing one of the busiest interchanges on the London Underground network. ![]()
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