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(Article of periodic en Anglais - 2008)

Document title

Instability investigation of cantilevered seacliffs

Authors(s) and Affiliation(s)

YOUNG A.P. (1) ; ASHFORD S.A. (2) ;
(1) Scripps Institution of Oceanography, Univ. of California, San Diego, ETATS-UNIS
(2) School of Civil and Construction Engineering, Oregon State Univ., Corvallis, ETATS-UNIS

Abstract

This study investigated the instability of 2 such failures that occurred in Solana Beach, California, by combining terrestrial LIDAR scanning, cantilever beam theory and finite element analysis. Each landslide was detected by evaluating the surface change between subsequent high resolution digital terrain models derived from terrestrial LIDAR data. The dimensions of failed cantilever masses were determined using the surface change measurements and then incorporated into failure stress analysis. Both shear and tensile failure modes were investigated as potential cliff failure mechanisms by using a comparison of the back-calculated failure stresses to material strengths found in laboratory testing. Based on the results of this research, the tensile strength of the cliff material was exceeded at both locations, thus causing the cliffs to collapse in tension

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2008, vol. 33, no11 [pp. 1661-1677]

Bibliographic references : 1 p.

Collation : 15 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1636

Prodig - Bibliographie Géographique Internationale (BGI)
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