Mehr lesen
Informationen zum Autor Stéphane Bonelli is a Research Professor at the French Environmental Sciences and Technologies Research Institute (Cemagref). He graduated in Civil Engineering in 1988, obtained his PhD in Geomechanics in 1993 and holds a Habilitation from Marseille University. He created the Geomechanics and Erosion team in 2002 (12 people). He has over 20 years of teaching and research experience, and has published more than 60 papers on various aspects of numerical modelling of earthdams, internal erosion and monitoring data analysis. He has been a member of FrCOLD (French Committee on Large Dams) since 1998. He has been a member of the ICOLD (International Commission on Large Dams) European Working Group on Internal Erosion since 2005. He participated to 19 large dams reviews in Fance (visual inspection, monitoring data analysis and numerical modeling). Current activities include research, teaching and consultancy, focussing on soil erosion and the processes of levee breach. Klappentext This book aims to deliver significant scientific progress on the problem of the erosion of geomaterials, focusing on the mechanical/physical aspect. The chapters oscillate between a phenomenological outlook that is well grounded in experiments, and an approach that can offer a modeling framework. The basic mechanisms of internal and surface erosion are tackled one-by-one: filtration, suffusion, contact erosion, concentrated leak erosion, sediment and wind transport, bedload transport. These erosion mechanisms comprise both hydraulic structures (dams, dikes) and natural environments (wind, river, coastal). In this book, physicists and mechanicians share with the reader their most recent findings in their field work and study, while at the same time maintaining an accessible format. This compendium provides a well-documented information resource, and above all, a tool for approaching the issue of erosion of geomaterials in an up-to-date fashion for students, researchers and practitioners alike. Zusammenfassung This book aims to deliver significant scientific progress on the problem of the erosion of geomaterials, focusing on the mechanical/physical aspect. The chapters oscillate between a phenomenological outlook that is well grounded in experiments, and an approach that can offer a modeling framework. Inhaltsverzeichnis Foreword xiii Paul ROYET Introduction xv Stéphane BONELLI Chapter 1. Introduction to the Process of Internal Erosion in Hydraulic Structures: Embankment Dams and Dikes 1 Jacques FRY 1.1. Introduction 1 1.2. The significance of internal erosion for hydraulic structures 2 1.3. The impact of incidents on embankment dams and dikes 5 1.4. Main results of erosion trials 16 1.5. Remarks on the applicability of erosion trials 24 1.6. Conclusion 35 1.7. Bibliography 36 Chapter 2. Suffusion, Transport and Filtration of Fine Particles in Granular Soil 39 Didier MAROT and Ahmed BENAMAR 2.1. Introduction 39 2.2. Dominant parameters that influence suffusion 41 2.3. Main initiation criteria for suffusion 45 2.4. An initiation criterion formulated using a geohydromechanical approach 53 2.5. The scaling effect and the energetic approach 55 2.6. Coupling the phenomena of suffusion and filtration-clogging 58 2.7. Processes causing filtration 59 2.8. Filtration modeling 64 2.9. Confrontation between the laboratory filtration tests and the modeling 69 2.10. Filtration and clogging 71 2.11. Conclusion 74 2.12. Bibliography 75 Chapter 3. The Process of Filtration in Granular Materials 81 Eric VINCENS, Nadège REBOUL and Bernard CAMBOU 3.1. Introduction 81 3.2. Fundamental characteristics of th...
