A geological map of the London Underground: Unearthing different soil types in tunnelling.
Taking as its starting point the difficulties encountered with the Jubilee Line extension as a consequence of the soil types discovered therein, this dissertation has three primary aims. First, it provides a geological map of the London Underground based on the iconic template design by Harry Beck (1933). Secondly, joining maintenance teams across the network over a three month period, it records the different maintenance problems encountered (especially copper corrosion) as a consequence of different soil types – and in particular those differences encountered between heavy clay and lighter chalk. Thirdly, it provides a thorough literature review of existing literature on boring techniques through different substrates.
Suggested initial topic reading: