Graham Birch, Network Rail, Ian Anderson, Halcrow Group. Presented at the Ground Engineering Slopes Conference 16 Novemnber 2010. This paper was first published in GE’s May 2011 issue.
The Folkestone Warren and adjacent sea cliffs have provided considerable challenges to students and practitioners in both engineering and geology since the decision was taken in the 1840s to use this route for the main line between Folkestone and Dover, Kent.
The paper describes the nature of the ground movements and how the monitoring techniques employed within the Warren have been adapted in line with the development of new technologies, including a satellite interferometry trial, focusing on the recent commencement of terrestrial laser scanning.