Monitoring Stratford

摘要

As part of the West Ham Flood Alleviation Scheme, Thames Water commissioned the construction of a tunnel that passed approximately 15-20m below the south end of the Stratford Market London Underground depot train stabling roads, Jubilee Line running lines into Stratford Station, the spur line into the depot and the Dockland Light Railway Abbey Road construction site. As a result of the construction of this flood alleviation tunnel some vertical surface ground movement was expected, which potentially could have had an adverse effect on the infrastructure above and the safe operation of the railway systems. Consequently a programme of precise survey monitoring was required to check for any movement.