Debris-Flow Hazards Mitigation : Mechanics, Prediction, and Assessment : Proceedings of the Fourth International Conference on Debris-Flow Hazards Mitigation (DFHM-4), Chengdu, China, September 10-13, 2007

Rotterdam

2007

Monographie

978-90-5966-059-5

178373

These proceedings contain papers presented at the Fourth International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment held in Chengdu, China, September 10-13, 2007. The papers cover a wide range of topics on debris-flow science and engineering, including the factors triggering debris flows, geomorphic effects, mechanics of debris flows (e.g., rheology, fluvial mechanisms, erosion and deposition processes), numerical modelling, various debris-flow experiments, landslide-induced debris flows, assessment of debris-flow hazards and risk, field observations and measurements, monitoring and alert systems, structural and non-structural countermeasures against debris-flow hazards, and case studies. The papers reflect the latest developments and advances in debris-flow research. Several studies discuss the development and application of Geographic Information System (GIS) and Remote Sensing (RS) technologies in debris-flow hazard/risk assessment. Timely topics presented in a few papers also include the development of new or innovative techniques for debris-flow monitoring and alert systems, especially an infrasound acoustic sensor for detecting debris flows. Many case studies illustrate a wide variety of debris-flow hazards and related phenomena as well as their hazardous effects on human activities and settlements. The papers are printed in black and white, and are also found in full on the accompanying CD-ROM, including all full-colour illustrations.
Terrestrial and meteorological factors triggering debris flows , Relationships between antecedent rainfall and debris flows in Jiangjia Ravine, China , Rainfall threshold for the Initiation of debris flows by channel-bed failure in the Dolomites , Uncertainty features of weather radar rainfall , Factors of debris flow origination in the south-west area of Lake Baikal (Russia) , Vegetation patterns and the prediction of debris flow , Analysis of capillary barrier effects in the activation of debris avalanches in pyroclastic cover Campania (Southern Italy) , Thirty-one years of debris-flow Observation and monitoring near La Honda, California, USA , Geomorphic effects of debris flows , Effect of debris flow activity on the landscapes of the Greater Caucasus , Processes of debris flow formation and the dynamics of glaciers in the Central Caucasus , Debris cones as a source of Information on debris-flow activity , Mechanics of debris flows , Debris flow rheology assessment through mathematical Simulation of hydrograph deformation , Experimental study on the thixotropy of viscous debris flows , Sediment sorting in stony debris flow , A preliminary study on energy dissipating mechanism for viscous debris flow , Erosion and deposition processes in debris flow , Normal stresses, longitudinal profiles, and bedrock surface erosion by debris flows—Initial findings from a large, vertically rotating drum , Influence of debris flow discharge on equilibrium bed slope , Hydrological and sedimentary processes related to a high intensity debris-flow catchment in the Dolomites (Italian Alps) , Numerical modeUing of debris flows , Numerical modeling of two debris flows in the Dolomites (Northeastem Italian Alps) , A 2D finite-element debris-flow model based on the Cross rheology formulation , A numerical model for heterogeneous and confined debris flows , Two-dimensional numerical Simulation of rainfall-induced debris flows using GIS , Debris-flow experiments , Laboratory investigation of dam-break flow of a mixture of water and granular matter , Geotechnical centrifuge modeling of debris flows , Experimental and numerical comparison of the density current movement induced by instantaneous inflow on steep slope , Experimental study on the parameters that cause river-blocking by debris flow , Experimental analysis of the seepage failure of a sand slope , Flow of different material mixtures in a rotating drum , Experimental investigations of interaction between mudflow and an obstacle , Dynamic response of buildings Struck by debris flows , Experiment and analysis of slope failure of debris-flow fans , Landslide-induced debris flows , The prediction of shallow landslide location and size using a muhltidimensional landslide analysis in 319 a digital terrain model , Hydrological conditions leading to shallow landslides in the Sannio area (Southern Italy) , Two catastrophic debris avalanches triggered by rainstorms in Japan and Philippines , Simulation of landslide-induced debris flow—The Atsumari debris flow disaster in Minamata City, Japan , A flowslide during the 2003 Sanriku-Minami earthquake, Japan , Assessment of debris-flow hazards and risk , Assessment and modeling of debris flows in the El Niflo affected area of Matucana, Peru , Debris-flow hazard assessment related to geomorphological and geological setting and to shallow-landslide occurrence , Study on methodology and application of debris-flow hazard risk assessment , Comparison of different techniques to analyse the mobility of debris flows during hazard assessment— Case study in La Cornelia catchment, Andorra , Direct damage assessment for debris flows , Risk assessment of debris flow hazards based on GIS—A case study in Dongchuan district, Yunnan Province, China , A digital watershed hydrological model and its use in slopeland hazard evaluation , Dissemination of Information on debris flow hazard areas using GIS technology , Medium (1:200,000) scale maps and cadastre of Northern Caucasus debris-flow basins , A method for delineating restricted hazard areas due to debris flows , GlS-based prediction of debris flows and landslides in southwestern China , Comprehensive assessment on landslides and debris flows in Sichuan Province based on GIS and RS , Debris flows in the Beijing Mountains—Patterns of development and prediction of regional risk , A very short-range forecast System of regional debris flow based on Doppler weather radar , Risk assessment for debris flow by support vector machine , Field observations and measurements of debris flows , Empirical relationships for deposited length of debris-flows—A case study in Taiwan , Planar velocity distribution of viscous debris flow at Jiangjia Ravine, Yunnan, China—A field measurement with two radar velocimeters , Laser scanning technique for the acquisition of digital elevation modeis of debris flow material , Debris-flow monitoring and alert Systems , Debris flow detection using Image processing techniques , Propagation characteristics of ground vibrations produced by rock motions , Calibration of infrasound monitoring System and acoustic characteristics of debris-flow movement by 57 field studies , A laboratory study on ion concentration, electrical conductivity of seepage water and mass movement occurrence , Warning System for debris flow hazards at Sakurajima Volcano, Japan , movement occurrence , Warning system for debris flow hazards at Sakurajima Volcano, Japan , Study on method of setting threshold of ground Vibration sensor for detecting debris flow , Detecting groundwater level in shallow unconfined aquifer with microwaves for use in debris flow warning , Monitoring ground vibrations generated by debris flows , Structural and non-structural debris-flow countermeasures , Integrated planning of debris-flow countermeasures in Taipei County, northwestern Taiwan , An experimental study of the impact force of debris flows on slit dams , Control of Sediment run-off volume through dose type check dams , The Maschänserrüfe project—A system of debris flow discharge and volume control , Field measurements used for numerical modeling of flexible debris flow barriers , Case studies of debris-flow hazards and mitigation countermeasures , Glacier and debris flow disasters around Mt. Kazbek, Russia/Georgia , Debris flow hazard of glacial lakes in the Central Caucasus , Environmental impacts of debris flows—A case study of the two debris-flow zones in the , Sediment properties of hyperconcentrated flow and the potential for agricuUural improvement of debris flow deposits—A case study on the Jiangjia Ravine, Yunnan Province, China , Physical and chemical soll properties in debris-flow bottomland plots