Staff Lead researcher Professor William Powrie Professor of Geotechnical Engineering Research interests Railway track and trackbed behaviour and performance. Geotechnical transportation infrastructure (earthworks, retaining walls, tunnels). Groundwater and groundwater control. Connect with William Email: w.powrie@soton.ac.uk Other researchers GM Dr Gerald Muller Associate Professor Connect with Gerald Email: g.muller@soton.ac.uk GDA Dr Gustavo De Almeida Associate Professor Connect with Gustavo Email: g.dealmeida@soton.ac.uk