Genesis of channel bank overhangs in the Niger Delta and analysis of mechanisms of failure

Auteur(s) et Affiliation(s)

ABAM, T.K.S.

Institute of Geosciences and Space Technology, Rivers State University of Science and Technology, Port Harcourt, Nigeria

Description :
The instability of channel banks carries a significant economic implication because of its effect on navigation and channel commercial development. Field observation and analysis indicate that factors such as stratigraphy, local climate, bio-technical and fluvio-tidal processes act singly or in combination to generate overhangs in channel banks. The failure of channel banks with overhangs involves one of four mechanisms, namely; rotation, beam, shear, and tension failure. A mathematical basis for the discrimination of these failure mechanisms is described.

Type de document :
Article de périodique

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 1997, vol. 18, n°. 2, p. 151-164, Collation : Illustration, Références bibliographiques : 13 ref.

Date :
1997

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier

Langue :
Anglais