David Hartwell was awarded the 13th Skempton medal by the BGA in 2018. In this lecture he will share his experience of ‘Water and Tunnelling - Lessons from 40 years of Interesting Problems’.
The talk will highlight David’s experience in finding solutions to problems with groundwater associated with shafts and tunnels over the last 40 years. Along the way lessons were learnt, many of which do not appear in groundwater or soil mechanics text books.
Two major projects will be highlighted: the Storebaelt tunnels in Denmark including pressure relief for the cross passages and the MOSES offshore dewatering scheme. The second major project was the recovery of the flooded Docklands Light Rail tunnel under the river Thames; freezing was considered but the scheme adopted included wells in the river and horizontal wells drilled from within the tunnel.
The Skempton Medal
The Skempton Medal is awarded by the BGA to commemorate the life and work of Professor Sir Alec Skempton of Imperial College London, who was a key figure in the development of the science and practice of soil mechanics.
The BGA criteria state:
The Skempton Medal is awarded to a BGA member who has made an outstanding contribution to the practice of geotechnical engineering over a sustained period of time. The individual will not normally have received other comparable recognition in this country. The individual’s work should be closely associated with, though not necessarily carried out in, the United Kingdom. It is expected that not more than four awards would normally be made per decade.
The Skempton Medal citation for David Hartwell can be read here.
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