The assessment and investigation of chalk karst hazard for a site at the University of Sussex
Tuesday 13 November 18:00 until 20:00
Fulton Building 203, University of Sussex
Speaker: Lee Taylor, Senior Engineering Geologist at Arup
The Geological Society, South East Regional Group
Lee will discuss how a chalk karst hazard was identified and assessed for a site situated on the west-facing slope of an interfluve in the South Downs near Brighton. The presence of karst features puts buildings and infrastructure at risk of differential and collapse settlement and can severely impact the cost and programme of design and construction. If features are identified, the presence of cavities should be determined along with the characteristics of infill and the three-dimensional extent of the feature(s), which helps to define the remedial action required. Geophysical methods and probing are more economical alternatives to conventional ground investigation techniques. This talk provides a discussion of the hazard identification and assessment process, and makes recommendations on the use of CPT probing to identify karst features.
By: Martin Wingfield
Last updated: Monday, 12 November 2018