Response of Buildings Supported on Shallow Footings to Tunnelling Induced Ground Movements: A Case Study of Selected Buildings at Bond Street Station.

The Crossrail works at Bond Street station comprised the construction of below ground station box structures and the connecting station platform tunnels. The layout of the station is shown on plan in Figure 1. Construction of the two 10 metre diameter platform tunnels approximately 240 metres in length (along with associated cross-passages and adits) was undertaken beneath London's Mayfair district. The platform tunnels were formed by enlarging sections of the Crossrail bored tunnel (6.8 metres diameter) using Sprayed Concrete Lining (SCL) techniques. The ground conditions comprised Ground underlain by Alluvium, River Terrace Deposits, London Clay, Lambeth Group, with Thanet Sand and Chalk at depth. The tunnels were constructed at depths between 20 m and 24 m below ground level, entirely within London Clay stratum.