WIT Press


Coastal Cliff Failures At Colhuw Beach, Wales, UK

Price

Free (open access)

Volume

15

Pages

8

Published

1996

Size

819 kb

Paper DOI

10.2495/CENV960081

Copyright

WIT Press

Author(s)

A.T. Williams, P. Davies & A.P. Belov

Abstract

Several numerical models of cliff failure have been utilised in an attempt to understand failure mechanisms at Colhuw beach located in the Glamorgan Heritage Coast, Wales, UK. An understanding as to why falls occur is pre requisite for any management scheme, particularly with the current concern for public safety and consequent financial liabilities Translation failure was common at heavily limestone buttressed cliff sites of Jurassic bucklandi - limestone dominated cliffs and in areas where mudstone dominated angulata series outcropped. Toppling was common at vertical and overhanging cliff sites which exhibited basal undercutting and/or where a hard, thick limestone fulcrum existed in the cliff face on which the block could rotate and topple. The factor of safety reduced as the ratio

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