Description
WIT Press Monitoring Simulation Prevention and Remediation of Dense and Debris Flows 2006 Edition by G. Lorenzini, C. A. Brebbia, D.E. Emmanouloudis
This book contains papers presented at the First International Conference on Monitoring, Simulation, Prevention and Remediation of Dense and Debris Flows. The contents stress the importance and possibilities of numerical simulation and experimental measurements on all those environmental flows that affect our environment, sometimes dramatically. The basic concept of dense flow relates to a great variety of natural phenomena that occur both in the field and in the laboratory. A more detailed understanding of these may lead not only to a better description of what happens in nature but also to the definition of more effective countermeasures to limit the worst effects or even to predict the dynamics of natural disasters in order to minimise potential damage.This book contains sections on the following topics: Mass wasting and solid transport; Slope failure and landslides; Sediment, slurry and granular flows; Solid transport within a streamflow; Hyper-concentrated flows; Debris-flow phenomenology and rheology; Debris-flow triggering and mobilisation mechanisms; Debris flow modelling; Debris flow disaster mitigation (structural and non-structural measures); Case studies; Computer models; Rock falling problems and Mechanics of solid-liquid-flows. Table of Contents : Section 1: Debris-flow modelling Gullies and debris flows analysis: a case study in Sardinia and a rheological modelling approach; Debris flow hazard and mitigation works in Fiames slope (Dolomites, Italy); Prediction of landslide-induced debris flow hydrograph: the Atsumari debris flow disaster in Japan; Method of debris flow prediction based on a numerical weather forecast and its application; Application of the ALE FE method to debris flows; Comparison of 1D debris flow modelling approaches using a high resolution and non-oscillatory numerical scheme based on the finite volume method; Flood modelling and impact of debris flow in the Madarsoo River, Iran Section 2: Debris-flow phenomenology A procedure for the evaluation of debris flow stratification; Comparative rheologic investigations in a vertically rotating flume and a "moving-bed" conveyor belt flume; An application of the Hanks stability parameter for the macroviscous-inertial transition in the surface flow of a neutrally buoyant suspension; Rheology and pressure loss measurements of silt samples extracted from a dam reservoir; Using in-situ radionuclides to model sediment transfer at the flow event time scale Section 3: Debris and hyper-concentrated flows Special session organised by D. De Wrachien; Research developments in debris flow monitoring, modelling and hazard assessment in Italian mountain catchments; Long-term monitoring of bedload and debris flows in two small catchments of the Eastern Italian Alps; Some considerations on the application of the FLO-2D model for debris flow hazard assessment; Operative approaches for debris flow modelling and hazard assessment, Laures watershed, Valle d'Aosta, Italy; Analysis and modeling of debris flows in Gargano watersheds (Puglia region, Southern Italy); Section 4: Debris flow and landslides phenomena after extreme events (Special session organised by D. Emmanouloudis) The cause and mechanism of the fatal flood in Eleftheres, Kavala, Northern Greece; The cause and mechanism of Gouras stream Mudflow in Epirus (W. Greece); Assessment of post fire debris flow potential in a Mediterranean type ecosystem; Evaluating the correlation of extreme climatic phenomena on road slope landslides; Computer analysis of slope failure and landslide processes caused by water; Failure mechanics of joined rock mass; Back analysis of the Vaiont slide using a multi-block sliding model Section 5: Debris-flow mobilisation Triggering mechanisms of soil instability; Causes of debris flow formation in flysch area of North Istria, Croatia Section 6: Debris-flow disaster mitigation Risk analysis and risk management in Maesstobel; Topographic signature of debris flow dominated channels: implications for hazard assessment; Debris flow hazards and emergency response in Taiwan; Debris flow research in Russia and the Former Soviet Union: history and perspectives Section 7: Case studies Risk management in Lattenbach: a case study from Austria; A study on debris flow disasters along Japanese railways and its critical rainfalls; Hyper-concentrated flows in tributaries of the middle Yellow River; The Matata debris flows, 18 May 2005