Dam-break Modeling in Alpine Valleys  

作　　者：Marco PILOTTI Andrea MARANZONI Luca MILANESI Massimo TOMIROTTI Giulia VALERIO 

机构地区：[1]DICATAM, Università degli Studi di Brescia,Via Branze 43, 25123 - Brescia, Italy [2]DICATe A, Parco Area delle Scienze 181/A,43124 - Parma, Italy

出　　处：《Journal of Mountain Science》2014年第6期1429-1441,共13页山地科学学报（英文）

基　　金：developed within the European Project Kulturisk (Grant agreement 265280)

摘　　要：Dam-break analysis is of great importance in mountain environment,especially where reservoirs are located upstream of densely populated areas and hydraulic hazard should be assessed for land planning purposes.Accordingly,there is a need to identify suitable operative tools which may differ from the ones used in flat flood-prone areas.This paper shows the results provided by a 1D and a 2D model based on the Shallow Water Equations(SWE) for dam-break wave propagation in alpine regions.The 1D model takes advantage of a topographic toolkit that includes an algorithm for pre-processing the Digital Elevation Model(DEM) and of a novel criterion for the automatic cross-section space refinement.The 2D model is FLO-2D,a commercial software widely used for flood routing in mountain areas.In order to verify the predictive effectiveness of these numerical models,the test case of the Cancano dam-break has been recovered from the historical study of De Marchi(1945),which provides a unique laboratory data set concerning the consequences of the potential collapse of the former Cancano dam(Northern Italy).The measured discharge hydrograph at the dam also provides the data to test a simplified method recently proposed for the characterization of the hydrograph following a sudden dam-break.

关 键 词：Dam-break modeling Shallow waterequations Alpine valleys Case study Hydraulic hazard 

分 类 号：TV122.4[水利工程—水文学及水资源]