Pore water pressure and streambank stability : results from a monitoring site on the Sieve River, Italy

Special issue : Changing times-Changing rivers

Auteurs :
CASAGLI, N.
RINALDI, M.
GARGINI, A.
CURINI, A.
THORNE, C.R.

Description :
This paper makes use of the monitoring and modelling results to determine the variability of pore water pressures in a streambank at a seasonal scale and evaluate their response to rainfall and single flow events : to evaluate the contribution of matric suction to increase shear strength in partly saturated material and assess the role of suction in determining bank stability; to determine the influence of reduction in matric suction during flow events in causing instability and triggering mass failures; and to illustrate differences in the frequency of occurrence of fluvial erosion (acting on the basal portion of the bank) and mass failures (occurring on the upper part of the bank).


Type de document :
Congrès

Source :
International Conference on Geomorphology : session on Fluvial Geomorphology, 4, Bologna, Italie, 1997-08, Earth surface processes and landforms, issn : 0197-9337, 1999, vol. 24, n°. 12, p. 1095-1114, Collation : Illustration, Références bibliographiques : 36 ref.

Date :
1999

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley