Professor Robert Mair from the University of Cambridge will be discussing the following:
"Urban congestion is a serious problem in many cities, so the creation of underground space and in particular the development of underground transport is environmentally essential. How can tunnels be built in ground sometimes as soft as toothpaste? What can go wrong? Will buildings above be affected by subsidence? What else is underground already that might get in the way? Geotechnical engineering, the application of the science of soil mechanics and engineering geology, plays a key role in answering these questions."
This lecture is free - no ticket or advanced booking is needed. Doors open at 5.45pm and seats will be allocated on a first-come-first-served basis.
If anyone goes and fancies doing a guest blog post for me, it'd be much appreciated as I'd like to know how a lot of this new tunnelling is going to work.
Full details are on the Royal Society's site and apparently there will be a live webcast of the lecture too.