Assessing the risk of building damage due to tunnelling - lessons from the Jubilee Line Extension, London

摘要

The construction of tunnels and excavations inevitably causes ground movements. In the urban environment such movements present a risk of damage to buildings and structures. The assessment of the degree of risk of such damage is important both from the point of view of engineering design and for planning and consultation purposes. This paper summarises the approach that was used for assessing the risk of building damage for the planning stages of the Jubilee Line Extension in London, identifies the gaps in knowledge and describes a major collaborative research project involving field measurements of the response of a number of buildings on the route of the JLE. Some case histories are described and the lessons learned from the research are presented.