Slit-check dams are widely employed in mountain river control. However an analysis of their performance in the field is still lacking. In the present work a field verification to evaluate the interaction between solid discharge regime and four slit-check dams built in two subcatchments of the Versilia River in Tuscany, Italy is presented. The analysis is based on a relatively detailed field knowledge consisting of hydrological, topographical, and sedimentological data, together with a recent model proposed by Armanini and Larcher. Slit-check dam efficiency is analyzed in terms of deposit formation during major floods and its influence on long-term sediment transport regime. Results suggest that the design efficiency is affected by the high sediment trapping capacity associated with the relatively minor floods. A comparison between the deposit geometry predicted by the theory and the field measurements gathered during a systematic monitoring activity shows good agreement.

Case study: efficiency of slit-check dams in the mountain region of Versilia basin / M. Catella; E. Paris; L. Solari. - In: JOURNAL OF HYDRAULIC ENGINEERING. - ISSN 0733-9429. - STAMPA. - 131:(2005), pp. 145-152. [10.1061/(ASCE)0733-9429(2005)131:3(145)]

Case study: efficiency of slit-check dams in the mountain region of Versilia basin

PARIS, ENIO;SOLARI, LUCA
2005

Abstract

Slit-check dams are widely employed in mountain river control. However an analysis of their performance in the field is still lacking. In the present work a field verification to evaluate the interaction between solid discharge regime and four slit-check dams built in two subcatchments of the Versilia River in Tuscany, Italy is presented. The analysis is based on a relatively detailed field knowledge consisting of hydrological, topographical, and sedimentological data, together with a recent model proposed by Armanini and Larcher. Slit-check dam efficiency is analyzed in terms of deposit formation during major floods and its influence on long-term sediment transport regime. Results suggest that the design efficiency is affected by the high sediment trapping capacity associated with the relatively minor floods. A comparison between the deposit geometry predicted by the theory and the field measurements gathered during a systematic monitoring activity shows good agreement.
131
145
152
M. Catella; E. Paris; L. Solari
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/349619
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