Rockfall Engineering

Stéphane Lambert is a Research Engineer at CEMAGREF, Grenoble, France. His research are mainly on protection structures, natural hazards and geosynthetics. François Nicot is a Researcher at CEMAGREF, Grenoble, France, and an Executive Member of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE). His contributions mainly concern the mechanical behavior of granular geomaterials. He is also Editor-in-chief of the European Journal of Environmental and Civil Engineering.

• Foreword xiiiIntroduction xviiChapter 1. Geophysical Detection and Characterization of Discontinuities in Rock Slopes 1Jacques DEPARIS, Denis JONGMANS, Stéphane GARAMBOIS, Clara LÉVY, Laurent BAILLET and Ombeline MERIC1.1. Introduction 11.2. Geophysical parameters and methods 21.3. Applications 191.4. Conclusions 311.5. Acknowledgments 321.6. Bibliography 33Chapter 2. Remote Sensing and Monitoring Techniques for the Characterization of Rock Mass Deformation and Change Detection 39Marc-Henri DERRON, Michel JABOYEDOFF, Andrea PEDRAZZINI, Clément MICHOUD and Thierry VILLEMIN2.1. Introduction 392.2. Main issues 402.3. Investigation and monitoring techniques 412.4. Examples of applications 482.5. Perspectives 572.6. Conclusions 582.7. Bibliography 58Chapter 3. Mechanical Stability Analyses of Fractured Rock Slopes 67Véronique MERRIEN-SOUKATCHOFF, Jérôme DURIEZ, Muriel GASC-BARBIER, Félix DARVE and Frédéric-Victor DONZÉ3.1. Introduction 673.2. Experimental study of rock joint behavior 683.3. Failure computations of rigid blocks 723.4. Overview of different stress-strain analyses 863.5. An advanced stress-strain analysis of failure 923.6. Conclusions 1053.7. Bibliography 106Chapter 4. Assessment of Constitutive Behaviors in Jointed Rock Masses from a DEM Perspective 113Cédric LAMBERT and John READ4.1. Introduction 1134.2. Discrete Element Modeling of rock materials 1154.3. Representation of rock discontinuities 1164.4. Synthetic Rock Mass modeling methodology 1254.5. Analysis of specific mechanical behaviors: case studies 1324.6. Conclusions 1384.7. Bibliography 138Chapter 5. Methods for Predicting Rockfall Trajectories and Run-out Zones 143Luuk DORREN, Ulrik DOMAAS, Kalle KRONHOLM and Vincent LABIOUSE5.1. Introduction 1435.2. Preparation of a rockfall trajectory study 1485.3. Definition of the release scenarios 1535.4. Rockfall models 1545.5. Plausibility check / validation of model output 1645.6. Fixing model results and translation into a readable map1665.7. Future improvements 1675.8. Bibliography 168Chapter 6. Rockfall Dynamics: A Critical Review of Collision and Rebound Models 175Franck BOURRIER and Oldrich HUNGR6.1. Introduction 1756.2. Physical processes associated with collision and rebound 1756.3. Review of rebound models 1816.4. Perspectives and conclusions 2036.5. Bibliography 203Chapter 7. Rockfall Hazard Zoning for Land Use Planning 211Vincent LABIOUSE and Jacopo Maria ABBRUZZESE7.1. Introduction 2117.2. Rockfall zoning for urban development planning 2127.3. Zoning methodologies at the regional/valley scale 2227.4. Zoning methodologies at the local scale 2247.5. Sources of uncertainties and differences in hazard zoning results 2377.6. Implications of zoning results in land use planning 2437.7. Conclusions 2477.8. Acknowledgments 2497.9. Bibliography 249Chapter 8. Rockfall Quantitative Risk Assessment 255Jordi COROMINAS and Olga MAVROULI8.1. Introduction 2558.2. Objectives of the QRA 2618.3. Assessment of the rockfall risk components 2668.4. Examples of rockfall risk 2908.5. Bibliography 296Chapter 9. Multi-scale Analysis of an Innovative Flexible Rockfall Barrier 303Ayman TRAD, Ali LIMAM, David BERTRAND and Philippe ROBIT9.1. Introduction 3039.2. Presentation of rockfall protection nets 3049.3. Presentation of tools used for the numerical simulation 3069.4. Characterization of the net 3089.5. Characterization of the energy dissipators 3219.6. Full scale test on the barrier 3289.7. Conclusion and perspectives 3409.8. Bibliography 340Chapter 10. A New Design Method for Rockfall Shelters Covered by Granular Layers 343Francesco CALVETTI and Claudio DI PRISCO10.1. Definition of the impact phenomenon 34310.2. Real scale experiments 34510.3. An uncoupled approach for the definition of impact actions 35910.4. Conclusions 37110.5. Acknowledgments 37210.6. Bibliography 372Chapter 11. Design Procedure for a Three-Layer Absorbing System in Rockfall Protection Galleries 375Norimitsu KISHI and Hisashi KON-NO11.1. Introduction 37511.2. Standard impact design formula for sand cushion 37611.3. Absorbing performance of sand cushion and TLAS 37911.4. Design concept for TLAS 38311.5. Estimate of impact energy transmitted to EPS bottom layer 38611.6. Design of reinforced concrete core slab 38711.7. Estimate of required thickness of EPS bottom layer 38811.8. Estimate of impact force transmitted to gallery roof slab 39011.9. Verification of proposed design procedure 39011.10. Conclusion 39011.11. Bibliography 392Chapter 12. Ground Reinforced Embankments for Rockfall Protection: From Real Scale Tests to Numerical Modeling 393Daniele PEILA12.1. Introduction 39312.2. Full-scale tests on embankments 39712.3. Numerical modeling of ground reinforced embankments 41112.4. Conclusions 42212.5. Acknowledgments 42212.6. Bibliography 422List of Authors 427Index 433