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(Article of periodic en Anglais - 2009)

Document title

Channel degradation and slope adjustment in steep streams controlled through bed sills

Authors(s) and Affiliation(s)

MARTÍN-VIDE J.P. (1) ; ANDREATTA A. (1) ;
(1) Technical Univ. of Catalonia (UPC), Hydraulics Dep., Barcelona, ESPAGNE

Abstract

The case-study of the Les Arenes-Palau-Rubí rivers is a system of 2 tributaries and a main river in northeast Spain, characterized by its short length, steepness and ephemeral nature. The comparison of bed profiles since 1962 revealed an incision greater than 5.5 m. The main causes of degradation are thought to be channelization (width reduction) and urban growth. The equilibrium slopes with and without sills were obtained in 111 live-bed flume tests. It is demonstrated that the bed slope is milder with sills than without sills under the same flow and sediment rates. The equations for the calculation of equilibrium slopes, scaled to ptototype, are applied to the case-study, with good agreement

Source

Article of periodic

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

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

Millesime : 2009, vol. 34, no1 [pp. 38-47]

Bibliographic references : 29 ref.

Collation : 9 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1687

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
Refdoc record number (ud4) : 21560505 : Permanent link - XML version
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