Event type:
Evening meeting
Organised by:
Engineering Group
Venue:
The Geological Society, Burlington House
Event status:
EVENT CLOSED
Scour Feature in St. James’s Square, London
Richard Ball, CGL
Unexpected ground conditions were encountered during the excavation of a basement in St. James’s Square London, where a vertical contact between the London Clay and the overlying River Terrace Deposits was recorded. Details of the ground conditions encountered are presented and a synopsis of the difficulties caused by these ground conditions in the construction process.
The Value of Classification Testing in Engineering Geology: An Example from North East England
Dr. Andrew Smith, Coffey
Classification tests are widely used in geotechnical investigation for construction. Much effort has been expended on correlations between classification tests (particularly moisture contents and index tests) and other properties. Indeed, it may seem that their original purpose, that of classification, has almost been forgotten. This presentation describes a project in the North East of England in which a single particle size distribution test result proved crucial in interpreting a complex geological structure. This proved to be vital information for the development of a ground model in support of a claim.
Carsington Dam – Some Key Lessons Revisited
Professor David Norbury, Director of David Norbury Ltd
The failure of Carsington Dam during construction in the 1980’s was a major embarrassment to the UK earthworks industry. This presentation will outline the causes of the failure, which come down to a basic misunderstanding of a number of aspects of clay behaviour. Although this was well aired at the time, this was a generation ago. This talk will revisit the causes and the lessons which hopefully remain learnt from this event.
Time
Tea and coffee from 5.30pm
Meeting commences at 6.00pm
Cost
Free to attend - registration not required
Further information
Webcast TBC
Contact the event convener for more information