Incision and width changes caused by dam removal: experiments and data analysis
FerrerBoix_etal_RiverFlow2010.pdf (4,136Mb) (Restricted access) Request copy
Què és aquest botó?
Aquest botó permet demanar una còpia d'un document restringit a l'autor. Es mostra quan:
- Disposem del correu electrònic de l'autor
- El document té una mida inferior a 20 Mb
- Es tracta d'un document d'accés restringit per decisió de l'autor o d'un document d'accés restringit per política de l'editorial
Document typeConference report
Rights accessRestricted access - publisher's policy
Dam removal may cause severe disruptions to the river, both upstream and downstream of the former location of the dam. The aim of the paper is to study the physical response to dam removal in the former deposit upstream. Specifically, the goal is to analyze bed profile evolution and the associated change in channel width. An experimental investigation has been carried out to study these topics. The experiments consisted of (i) a study of the delta front progradation within the impoundment and (ii) a set of runs in which profile and planform changes caused by dam removal were continuously monitored. All experiments were performed in a tilting flume filled with a non-uniform sediment mixture made of sand and gravel. The dam itself was made of three slats that were sequentially removed, allowing the remaining height to control the response of the river to removal. During the early stages of each removal, a narrowing process was observed while in more advanced phases, channel widening was reported. Narrowingwidening process was linked to bed erosion. The bed degradation process has been satisfactorily reproduced by a set of empirical equations that describe (i) bed erosion through foreset slope evolution and (ii) sediment discharge downstream.
CitationFerrer-Boix, C. [et al.]. Incision and width changes caused by dam removal: experiments and data analysis. A: International Conference on Fluvial Hydraulics. "River Flow 2010: Proceedings of the [Fifth] International Conference on Fluvial Hydraulics". BAW, 2010, p. 969-976. ISBN 978-3-939230-00-7.
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder