Note: Intro -- Title Page -- Copyright -- TABLE OF CONTENTS -- Foreword -- Authors Index.

Note: Intro -- Preface -- Contents -- Contributors -- Chapter 1: Landslides in Sensitive Clays - From Geosciences to Risk Management -- 1.1 Introduction -- 1.2 Part I: Sensitive Clays: Source, Nature and Development -- 1.3 Part II: Landslide Characterization -- 1.4 Part III: Integrated Geotechnical and Geophysical Site Investigations -- 1.5 Part IV: Slope Stability, Modelling and Progressive Failure -- 1.6 Part V: Hazard Assessment, Risk Management, Regulations and Policies -- 1.7 Conclusions and Outlook -- References -- Part I: Sensitive Clay: Source, Nature and Development -- Chapter 2: Chemistry, Sensitivity and Quick-Clay Landslide Amelioration -- 2.1 Introduction -- 2.2 Sensitivity Development -- 2.2.1 Development of High Undisturbed Strength -- 2.2.1.1 Depositional Factors -- 2.2.1.2 Post-depositional Factors -- 2.2.2 Development of Low Remolded Strength -- 2.2.2.1 Depositional Factors -- 2.2.2.2 Post-depositional Factors -- 2.3 Synthesis -- 2.4 Quick Clay Landslides -- 2.4.1 Classification -- 2.4.1.1 Stepwise Landslides -- 2.4.1.2 Uninterrupted Landslides -- 2.5 Strategies for Amelioration of Landsliding in Sensitive Clays -- 2.5.1 Prevention of the Initial Failure -- 2.5.2 Prevention of Failure Zone Advancement -- 2.6 Summary -- References -- Chapter 3: Nature of Sensitive Clays from Québec -- 3.1 Introduction -- 3.2 Methodology -- 3.3 Results and Analysis -- 3.3.1 Physico-chemical Properties -- 3.3.2 Primary Minerals (Non-clay) -- 3.3.3 Clay Minerals -- 3.4 Concluding Remarks -- References -- Chapter 4: Three-Dimensional Quick-Clay Modeling of the Gothenburg Region, Sweden -- 4.1 Introduction -- 4.2 Quick-Clay Development Settings in the Gothenburg Area -- 4.3 Data and Methods -- 4.4 Three-Dimensional Quick-Clay Predictions -- 4.4.1 Model Components and Their Refinements -- 4.4.2 Possible Model Applications -- 4.5 Conclusions -- References. , Chapter 5: Ion Exchange as a Cause of Natural Restabilisation of Quick Clay - A Model Study -- 5.1 Introduction -- 5.2 The Study Area -- 5.3 Modelling -- 5.3.1 Chemistry Setup in the Model -- 5.3.2 Transport in the Model -- 5.4 Results and Discussion -- 5.4.1 Present Day Conditions -- 5.4.2 Development Over Time for the Calcium Scenario -- 5.5 Conclusions -- References -- Chapter 6: Potassium Chloride as Ground Improvement in Quick Clay Areas - A Preliminary Study -- 6.1 Introduction -- 6.2 Background -- 6.3 Laboratory Investigations -- 6.4 Results -- 6.4.1 Initial Conditions -- 6.4.2 Salt Treated Clay -- 6.4.3 Diffusion of Potassium -- 6.5 Discussion -- 6.6 Conclusions -- References -- Part II: Landslide Characterization -- Chapter 7: Inventory of Large Landslides in Sensitive Clay in the Province of Québec, Canada: Preliminary Analysis -- 7.1 Introduction -- 7.2 Definitions and Investigative Methods -- 7.3 Historical and Spatial Aspects -- 7.4 Types of Large Retrogressive Landslides -- 7.4.1 Characteristics of Flowslides -- 7.4.2 Characteristics of Spreads -- 7.5 Estimation of Retrogression Distance -- 7.6 Conclusion -- References -- Chapter 8: Characterization of Post-failure Movements of Landslides in Soft Sensitive Clays -- 8.1 Background -- 8.2 Indicators for the Extent of Post-failure Movements -- 8.3 Remolding Energy -- 8.4 Conclusions -- References -- Chapter 9: Controls on the Dimensions of Landslides in Sensitive Clays -- 9.1 Introduction -- 9.2 Material Controls -- 9.2.1 Shear Strength and Sensitivity -- 9.2.2 Remoulding Energy and Rapidity -- 9.3 Geometric and Topographic Controls -- 9.3.1 Topographic Controls -- 9.3.2 Inclination of the Rupture Surface -- 9.4 Conclusions -- References -- Chapter 10: Prehistoric Sensitive Clay Landslides and Paleoseismicity in the Ottawa Valley, Canada -- 10.1 Introduction -- 10.2 Study Area. , 10.3 Landslides in the Ottawa Valley -- 10.4 Data Source -- 10.5 Results -- 10.6 Discussion -- 10.7 Conclusions -- References -- Chapter 11: Characterization and Post-failure Analysis of the 1980 Landslide in Sensitive Clays at Havre-St-Pierre, Québec, Canada -- 11.1 Introduction -- 11.2 Review of the 1980 Landslide at Havre-Saint-Pierre -- 11.3 Morphology and Geotechnical Properties Before the Landslide -- 11.4 Morphology of the Landslide -- 11.5 Numerical Modelling of Debris Spreading -- 11.6 Discussion of the Remoulding and Mobility of the Debris -- 11.7 Conclusion -- References -- Chapter 12: The Evolution of Material Properties Within an In Situ Shear Zone in Sensitive Clay -- 12.1 Introduction -- 12.2 Site Description -- 12.3 Field and Laboratory Investigations -- 12.4 Results and Interpretations -- 12.4.1 Soil Conditions and Failure Plane -- 12.4.2 Microstructural Changes -- 12.4.3 Pore Pressure Evolution -- 12.4.4 Changes Over Time in the Failure Zone -- 12.5 Discussion and Conclusions -- References -- Part III: Integrated Geotechnical and Geophysical Site Investigations -- Chapter 13: The Use of Geophysics for Sensitive Clay Investigations -- 13.1 Introduction -- 13.2 Geo-electrical -- 13.2.1 Electrical Resistivity Tomography -- 13.2.2 Resistivity Cone (RCPT/RCPTU) -- 13.3 Electromagnetics -- 13.3.1 Radiomagnetotelluric (RMT) and Controlled Source Audio Magnetotelluric (CSAMT) Methods -- 13.3.2 Joint Inversion of ERT and CSRMT Data -- 13.4 Seismic -- 13.4.1 Seismic Refraction -- 13.4.2 Surface Wave Analysis -- 13.4.3 High Resolution Seismic Reflection -- 13.5 Relationship Between Geophysical and Geotechnical Properties -- 13.5.1 Index Parameters -- 13.5.2 Shear Strength Parameters -- 13.5.3 Small Strain Stiffness -- 13.6 Discussion and Conclusions -- References. , Chapter 14: Applications of 2D Resistivity Measurements for Quick-Clay Mapping in Mid Norway -- 14.1 Introduction -- 14.2 Methods -- 14.2.1 2D Resistivity Measurements -- 14.2.2 Geotechnical Methods -- 14.2.3 Classification of Sediments from Resistivity Values -- 14.3 Applications of 2D Resistivity Measurements in Quick- Clay Areas -- 14.3.1 Combined 2D Resistivity Measurements and Geotechnical Investigations for Quick-Clay Mapping -- 14.3.2 Mapping of Barriers Against Landslide Development -- 14.3.3 Hazard Zonation -- 14.3.4 Engineering Purposes -- 14.3.5 Landscape Development and Groundwater Drainage Pattern -- 14.4 Concluding Remarks -- References -- Chapter 15: An Integrated Approach to Quick-Clay Mapping Based on Resistivity Measurements and Geotechnical Investigations -- 15.1 Introduction -- 15.2 Field and Laboratory Work -- 15.2.1 Site Description Vålen and Smørgrav -- 15.2.2 Geotechnical Site Investigations -- 15.2.3 Laboratory Work -- 15.2.4 Electrical Resistivity Tomography (ERT) -- 15.3 Results -- 15.3.1 Resistivity and Sensitivity -- 15.3.2 Resistivity from ERT and RCPT -- 15.3.3 Clay Resistivity Constrained by Bedrock -- 15.4 Discussions and Conclusions -- References -- Chapter 16: Geophysical and Geotechnical Investigations for a Major Highway in a Quick-Clay Area -- 16.1 Introduction and Background -- 16.2 Setting and Project Description -- 16.3 Methods -- 16.3.1 Geotechnical Field Investigations -- 16.3.2 Laboratory Investigations -- 16.3.3 2D Resistivity Measurements -- 16.4 Results and Interpretations -- 16.4.1 Ground Conditions from Geotechnical Investigations -- 16.4.2 Interpretation of 2D Resistivity Profiles -- 16.4.3 Comparison of Geotechnical Data and 2D Resistivity Data -- 16.5 Discussion -- 16.6 Concluding Remarks -- References -- Chapter 17: Mapping of Quick Clay by ERT and CPT-R in the Göta Älv River Valley. , 17.1 Introduction -- 17.2 Site Investigation Methods -- 17.2.1 ERT -- 17.2.2 CPT-R -- 17.3 Site Description -- 17.4 Quick Clay -- 17.5 Site Investigations -- 17.6 Results and Interpretation -- 17.6.1 ERT -- 17.6.2 CPT-R -- 17.7 Analysis and Discussion -- 17.7.1 Comparison of CPT-R and ERT Results -- 17.7.2 ERT -- 17.7.3 CPT-R -- 17.8 Conclusions -- References -- Chapter 18: Geophysical Data Integration for Quick-Clay Mapping: The Hvittingfoss Case Study, Norway -- 18.1 Introduction -- 18.2 Site Description -- 18.3 Data and Methods -- 18.3.1 ERT Measurements -- 18.3.2 Seismic Measurements -- 18.3.3 GPR Measurements -- 18.3.4 Geotechnical Investigations -- 18.4 Results and Interpretation -- 18.5 Conclusions -- References -- Chapter 19: Joint Acquisition and Processing of Seismic Reflections and Surface Waves in a Sensitive Clay Deposit in the Outaouais Region (Québec), Canada -- 19.1 Introduction -- 19.2 Study Site -- 19.3 Combined MASW-SV Seismic Reflection Survey -- 19.3.1 Field Data Acquisition -- 19.3.2 MASW Processing -- 19.3.3 SV Seismic Reflection Combined Processing -- 19.3.4 Interpretation -- 19.4 Multi-offset Seismic Piezocone Penetration Test -- 19.4.1 Data Acquisition and Processing -- 19.4.2 Interpretation -- 19.5 Discussion and Conclusions -- References -- Chapter 20: Empirical Geophysical/Geotechnical Relationships in the Champlain Sea Sediments of Eastern Ontario -- 20.1 Introduction -- 20.2 Methods -- 20.2.1 Surface Seismic Methods -- 20.2.2 Basic Geotechnical Core Tests -- 20.2.3 Borehole Geophysical Logging -- 20.3 Selected Site Studies -- 20.3.1 Case 1: Undisturbed and Non-sensitive Champlain Sea Sediments West of Ottawa -- 20.3.2 Case 2: Undisturbed and Sensitive Champlain Sea Sediments in Ottawa -- 20.3.3 Case 3: Disturbed and Non-sensitive Champlain Sea Sediments Near Alfred -- 20.4 Geotechnical/Geophysical Correlations. , 20.4.1 Porosity and Bulk Density Versus Shear Wave Velocity.