Physical Sciences/Engineering
Moving with the times
At Barnehurst in South-East London, Victorian contractors keen to limit the amount of land that needed to be purchased to construct the railway created a steep cutting for the track to run through. At that time, there was limited knowledge of soil mechanics, and the construction engineers failed to realise that the layers of silt, gravel and clay through which the track was cut would be particularly vulnerable to landslip during periods of heavy rain, creating risks to the track, trains and passengers travelling through it. Fast-forward 160 years to February 2019, and an innovative monitoring solution developed by Senceive raised an early alert of an earthworks slippage at the site, allowing trains to be stopped before a serious accident had occurred.