Geotechnical Research for Land Protection and Development

Name: Geotechnical Research for Land Protection and Development | Proceedings of CNRIG 2019
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Proceedings of CNRIG 2019

Francesco Calvetti Federica Cotecchia Andrea Galli Cristina Jommi(Editor)

Springer (Publisher)

1st Edition

Published on 22. June 2019

XVI, 788 pages

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978-3-030-21359-6 (ISBN)

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Content

Intro
Preface
Organization
Scientific Committee
Organizing Committee at Politecnico di Milano
Under the Patronage of
Contents
Protection
Influence of Numerosity and Distribution of Piezometric Data on the Performance of a Warning Model for Weather-Induced Landslides in Norway
Abstract
1 Introduction
2 Study Areas and Available Datasets
3 Methodology
4 Parametric Analyses
4.1 Time Periods
4.2 Numerosity
4.3 Average Distance
5 Application to One Territorial Unit
6 Conclusions
Acknowledgements
References
Temporal Evolution of the Force Exerted by Dry Granular Masses Impacting on Rigid Sheltering Structures
Abstract
1 Introduction
2 Numerical Model
3 Numerical Results
4 Design Approach
5 Conclusions
Acknowledgements
References
Planning and Monitoring of Mitigation Measures in a Landslide-Affected Area Through Numerical Modelling, Conventional and Satellite Data
Abstract
1 Introduction
2 Geological and Geomorphological Setting of the Study Area
3 Materials and Methods
4 Results
4.1 Geotechnical Model
4.2 Remedial Works
4.3 DInSAR Monitoring in Post-intervention Phase
5 Discussion and Conclusions
Acknowledgments
References
A Method to Evaluate Debris Flow Triggering and Propagation by Numerical Analyses
Abstract
1 Introduction
2 Methodology
3 Analysis and Results
3.1 Stage I
3.2 Stage II
3.3 Stage III
4 Conclusions
References
Multi-parameter Vulnerability Analysis of Settlement-Affected Masonry Buildings with Shallow/Piled Foundations: Case Studies in The Netherlands
Abstract
1 Introduction
2 The Proposed Methodology
3 Case Studies and Available Dataset
4 Results
5 Conclusions
References
Damage to Masonry Buildings Interacting with Slow-Moving Landslides: A Numerical Analysis
Abstract
1 Introduction
2 Case Study and Available Data
3 Structural and Geotechnical Models
4 Results
5 Conclusions
Acknowledgements
References
Probabilistic vs. Deterministic Approach in Landslide Triggering Prediction at Large-scale
1 Introduction
2 The TRIGRS Code
3 The PG_TRIGRS Code
4 Application to a Study Area
4.1 Rainfall Scenarios
5 Concluding Discussions on the Model Predictions
References
Two Control Works to Counteract the Inception of Debris Avalanches
Abstract
1 Introduction
2 Rationale and Details of Two Mitigation Options
3 Numerical Modelling
3.1 Materials and Methods
3.2 Effects of Baffles
3.3 Effects of Erosion Control Zones
3.4 Discussion
4 Conclusions
References
Prediction of Slope Movement Effects on Churches for the Development of a Fragility Curve Approach
Abstract
1 Introduction
2 Proposed Procedure for the Intensity Parameter Choice
3 Case of Study
4 Numerical Analysis and Results
5 Closing Remarks
Acknowledgements
References
A Simplified Methodology for the Assessment of the Seismic Risk Associated with Small Earth Dams
Abstract
1 Introduction
2 A Simplified Approach to Evaluate the Seismic Vulnerability
3 Seismic Vulnerability of Piedmont Earth Small Dams
4 A Data-Sheet for Seismic Risk Assessment
5 Case History: Earth Dam of Envie (CN) - Italy
6 Conclusions
Acknowledgments
References
Simplified Charts to Evaluate Settlements from Seismic Compression in Dry Loose Sand
Abstract
1 Introduction
2 Method
3 Results
4 Application to a Case Study
5 Conclusions
Acknowledgement
References
Assessment of Factors Contributing to Levees Stability
Abstract
1 Introduction
2 Influential Factors
2.1 Geometry
2.2 Strength/Permeability Parameters
2.3 Suction Contribution to Soil Shear Strength
3 Possible Countermeasures
4 Conclusions
Acknowledgements
References
Management of Transport Infrastructures: A Procedure to Assess the Landslide Risk
Abstract
1 Introduction
2 General Framework and Proposed Procedure
2.1 Step 1 - Database System
2.2 Step 2 - Analysis of Infrastructure Vulnerability
2.2.1 Analysis of Road Functionality: Calculation of the Level of Service
2.2.2 Characterization of Incident Scenarios and Consequences Analysis
2.3 Step 3 - Service Level
2.4 Step 4 - Intervention Priority Index
3 The Case Study: Road Network of the Enna Area (South Italy)
4 Conclusions
References
Geotechnical Aspects in the Assessment of Stability Conditions of the Volumni Hypogeum in Perugia
Abstract
1 Introduction
2 Site Conditions
2.1 From Physical to Mechanical Properties: Soil Water Retention Properties
3 Preliminary Stability Analyses
4 Conclusions
References
Monitoring of Rain-Induced Landslides for the Territory Protection: The AD-VITAM Project
Abstract
1 Introduction
2 LAMP (Landslide Monitoring and Predicting)
2.1 The IHG Model for Landslide Susceptibility Estimation
2.2 The Sensor Network
3 Sites Under Study
3.1 Mendatica (Italy)
3.2 Vence (France)
4 Conclusions
Acknowledgements
References
Ground Response Analyses for a Zoned Earth Dam Site in Southern Italy
Abstract
1 Introduction
2 Ground Response Analyses at the Farneto Del Principe Dam Site
3 Ground Motion Selection
4 Seismic Ground Response Analyses Results
5 Conclusions
References
Digital Terrestrial Stereo-Photogrammetry for Monitoring Landslide Displacements: A Case Study in Recoaro Terme (VI)
Abstract
1 Introduction
2 Terrestrial Stereo-Photogrammetric Terrestrial Survey
3 The Recoaro Terme (VI) Landslide Case Study
3.1 Hardware System
3.2 Calibration and Installation Phases
3.3 Determination of Displacement Field
4 Results and Discussion
5 Conclusion
Acknowledgements
References
Long-Term Monitoring of Landslide Displacements and Damage at Latronico, Italian Apennines
Abstract
1 Introduction
2 Geological and Geomorphological Framework
3 Map of Damage
4 Displacements
5 Conclusions
Acknowledgements
References
Hydrological Characterization of Silty Volcanic Slopes and Physically-Based Early Warning Systems
Abstract
1 Introduction
2 Fluxes Across the Layer Uppermost Surface
2.1 A Physical Model of Silty Volcanic Layer
2.2 Evaporation and Layer Hydrological Evolution
3 Fluxes Across the Layer Lowermost Surface
4 Early Warning Predictive Models
4.1 Typologies of Predictive Models
4.2 Examples of Application of EW Physical Based Approaches
5 Conclusions
References
Analysis of the Effects of Seasonal Pore Pressure Variations on the Slope Stability Through Advanced Numerical Modelling
Abstract
1 Introduction
2 Description of the Slope Features and Landslide Phenomena
3 Details of the Numerical Model
4 Results and Discussion
5 Conclusions
Acknowledgements
References
Displacement Evolution of a Large Landslide in a Highly Fissured Clay
Abstract
1 Introduction
2 Geotechnical Characterization of the Slope
3 Landslide Geometry and Kinematic Characteristics
4 A Conceptual Approach to Model the Displacement Evolution
5 Conclusions
References
Deep Movements in Clayey Slopes Relating to Climate: Modeling for Early Warning System Design
Abstract
1 Introduction
2 The Pisciolo Slope and the Geo-Hydro-Mechanical Context of Reference
3 Modelling of the SLVA Interaction
4 The Predicted Piezometric Regime Affected by the SLVA Interaction
5 The Slope Stability Variation Due to SLVA Interaction
6 Conclusions and Future Perspective
Acknowledgements
References
A Landslide in Overconsolidated Clays that Has Involved an Important Road of Access to an Internal Mountain Town
Abstract
1 Introduction
2 Geological Notes and Geometry of the Landslide
3 Geotechnical Characterization of Soils and in Situ Measurements
4 Backanalysis of the Landslide
5 Stabilisation Works
6 Conclusions
Acknowledgements
References
Numerical Analysis of Stacked Geo-Tubes
Abstract
1 Introduction
2 The Numerical Model
2.1 Stages of the Analysis
3 Results
4 Conclusions
References
Evaluation of Site Amplification for the Seismic Protection of a Strategic District in Naples
Abstract
1 Introduction
2 Case of Study
3 Reference Input Motions
4 One-Dimensional Seismic Response
5 Two-Dimensional Seismic Response
6 Conclusions
References
Mechanised Tunnel Excavation Through an Instrumented Site in Rome: Class A Predictions and Monitoring Data
Abstract
1 Introduction
2 Description of the Problem
2.1 Site
2.2 Numerical Model
3 Results and Comments
4 Conclusions
Acknowledgements
References
Assessing Future Variations in Landslide Occurrence Due to Climate Changes: Insights from an Italian Test Case
Abstract
1 Introduction
2 A Simulation Chain (SC) for Assessing Potential Variations in Landslide Occurrences in a Changing Climate
3 Shallow Rainfall-Induced Landslides (SRILs): The Nocera Inferiore Test Case
3.1 Study Area Description
3.2 Weather Upper Boundary Conditions
3.3 Empirical Threshold (Reder et al. 2016)
3.4 Physically-Based Model (PBM) (Rianna et al. 2017)
4 Results and Conclusion
4.1 Weather Upper Boundary Conditions
4.2 Expected Future Variations in Landslide Occurrence for Nocera Area
References
Back-Analysis of the Post-Failure Stage of a Landslide Using the Material Point Method
Abstract
1 Introduction
2 A Brief Description of the Senise Landslide
3 Simulation of the Post-Failure Stage of the Senise Landslide
4 Conclusions
References
Run-Out of Landslides Caused by Excess Pore Water Pressure Along the Slip Surface
Abstract
1 Introduction
2 The Material Point Method
3 Analysis Results
4 Concluding Remarks
References
Prediction of the Mobility of Landslides Activated by Rainfall Using a Simplified Approach
Abstract
1 Introduction
2 Method of Analysis
3 Application of the Method to the Alverà Landslide
4 Concluding Remarks
References
Pore Water Regime in Active Earthflows and Effects on Slope Movements
Abstract
1 Foreword
2 The Investigated Earthflows
3 Soil Properties and Hydraulic Conductivity
4 Pore Pressures and Displacements
5 Conclusions
Acknowledgements
References
Post-earthquake Resilience of a Room and Pillar Rock Cavity in Naples
Abstract
1 Introduction
2 Method of Analysis
3 Application to the Case Study of Fontanelle Cemetery in Naples
3.1 Description of the Case Study
3.2 Post earthquake Stability and Resilience
4 Conclusions
Acknowledgements
References
Feasibility of Foothill Barriers to Reduce the Propagation of Debris Avalanches
Abstract
1 Introduction
2 Methods and Input Data
3 Sensitivity Analysis
4 Conclusions
Acknowledgements
References
The Contribution of Spaceborne SAR Data in Linear Infrastructures Monitoring Activities
Abstract
1 Introduction
2 The Case Study of Provincial Road "S.P. 264"
3 Results: Benefits and Costs of DInSAR Analysis
3.1 Evaluation of Technical Benefits
3.2 Estimating Cost Scenarios for SAR Data Use
4 Discussion and conclusions
Acknowledgements
References
On the Reactivation of Sand Boils Near the Po River Major Embankments
Abstract
1 Introduction
2 The Case Study: Past Reactivations and Geotechnical Model
3 Numerical Simulation of Piping Reactivation
4 Field Investigations on the Sand Boil
4.1 Pipe Geometry
4.2 Head Loss
4.3 Discharge and Velocity
4.4 Discussion
5 Conclusions
References
An Early Warning System for Debris Flows and Snow Avalanches
Abstract
1 Introduction
2 Monitoring and Early Warning System Set Up and Installation
3 Snow Avalanche Event Detection
4 Logical Algorithms for the EWS Based on Weather Station Data
5 Conclusions
Acknowledgements
References
Liquefaction Hazard Evaluation for a 3rd Level Microzonation Study in a High Seismicity Area of Central Italy
Abstract
1 Introduction
2 Input Data Used for the Analyses
3 Liquefaction Potential Index (LPI) and Liquefaction Settlement Index (LSI) Evaluation
4 Discussion and Final Remarks
Acknowledgements
References
An Integrated Model for the Assessment of Subsidence Risk in the Area of Bologna (Italy)
Abstract
1 Introduction
2 Subsidence Risk Assessment
3 The Case Study
4 Hydro-Mechanical Subsoil Model
5 Damage Estimate
6 Conclusions
References
On the Stability of a Fully Instrumented River Embankment Under Transient Conditions
Abstract
1 Introduction
2 Materials and Methods
2.1 Monitoring Site
2.2 Investigation Campaigns
2.3 Monitoring System
3 Numerical Modelling
4 Discussion and Conclusions
Acknowledgements
References
Deterministic and Probabilistic Analyses of Slopes Reinforced with Vegetation
Abstract
1 Introduction
2 Root Reinforcement and Parameters Uncertainties
3 Parametric Analysis
3.1 Deterministic Results
3.2 Probabilistic Results
4 Conclusions
References
Mechanical and Physical Effects of Electroosmotic Dewatering of Clayey Soils
Abstract
1 Introduction
2 Material and Experimental Program
3 Apparatus
4 Experimental Results
4.1 Consolidation Tests in the Special Oedometer
4.2 Improvement of Mechanical Properties Due to EK Consolidation
5 Conclusions
References
The Use of Seismic Records for Updating the Geotechnical Model for a Site in San Giuliano di Puglia (Italy)
Abstract
1 Introduction
2 Accelerometric Network
3 Soil Model
4 Input Motions
5 Site Response Analyses
5.1 Results
6 Conclusions
References
The "Strange" Case of the Scorciavacche Failure
Abstract
1 Introduction
2 Sequence of the Events
3 The Geotechnical Investigation During the Pre-trial Phase
4 Technical Interpretations
5 Legal Aspects
6 Conclusions
Aknowledgments
References
A Macroelement Approach for the Stability Assessment of Trees
Abstract
1 Introduction
2 Description of Small Scale Experiments
3 Definition of the Macroelement Constitutive Rule
3.1 Parameter Calibration and Parametric Analysis
3.2 Influence of the Vertical Load Component
4 Conclusions
Acknowledgements
References
Development
Punching Tests on Deformable Facing Structures: Numerical Analyses and Mechanical Interpretation
Abstract
1 Introduction
2 Hybrid Methods
3 Numerical Model
4 Comparison with Experimental Results
5 Parametric Study
5.1 The Role of Wire Mesh Mechanical Behaviour
5.2 The Role of Spike Plate Dimensions
5.3 The Role of Soil Mechanical Behaviour
6 Conclusions
Acknowledgements
References
A Predictive Model for Pullout Bearing Resistance of Geogrids Embedded in a Granular Soil
Abstract
1 Introduction
2 Pullout Resistance: Theoretical Prediction
3 Experimental Program
4 Pullout Test Results
4.1 HDPE Geogrid
4.2 Steel Bar
5 Model Validation
6 Conclusions
References
The Effect of Densification on Pieve di Cento Sands in Cyclic Simple Shear Tests
Abstract
1 Introduction
2 Materials, Equipment and Testing Program
2.1 Materials
2.2 Equipment and Testing Program
3 Experimental Results
3.1 Cyclic Simple Shear Tests and Cyclic Resistance Curves
3.2 Pore Pressure Generation (Booker et al. 1976)
4 Conclusions
Acknowledgements
References
Evolution of Local Strains Under Uniaxial Compression in an Anisotropic Gypsum Sample
Abstract
1 Introduction
2 Materials and Methods
3 Results and Discussion
4 Conclusions
References
On the Effect of Grading and Degree of Saturation on Rockfill Volumetric Deformation
Abstract
1 Introduction
2 Triaxial Cell High Pressure Stress Path
3 Experimental Results
4 Conclusions
References
DEM Simulation of Frozen Granular Soils with High Ice Content
Abstract
1 Introduction
2 Numerical Model
2.1 Model Geometry and Boundary Conditions
2.2 Numerical Parameters
3 Numerical Simulations
3.1 Simulation Procedure
3.2 Numerical Results
4 Conclusions
Acknowledgments
References
The Effects of Structure on the One Dimensional Compression Behaviour of a Porous Calcarenite
Abstract
1 Introduction
2 Materials and Methods
3 Results
4 Conclusions
Acknowledgements
References
Artificial Intelligence to Predict Maximum Surface Settlements Induced by Mechanized Tunnelling
Abstract
1 Introduction
2 Artificial Neural Networks in Tunneling
3 Case Study and Database
4 ANN Development
5 Results and Discussion
6 Conclusions
References
Enhancement of Design Methodologies of Anchored Mesh Systems Using the Discrete Element Method
Abstract
1 Introduction
2 Classical Design Methodologies for Anchored Mesh Systems
3 Discrete Element Modelling of Wire Meshes
4 Numerical Model of a Simplified In-situ Anchored Mesh System
4.1 Mechanical Behavior of the Mesh
4.2 Soil Deformation Mechanism
4.3 Effect of the Mesh Stiffness
5 Conclusions
Acknowledgements
References
Seismic Soil-Pile-Structure Interaction. Theoretical Results and Observations on Pile Group Effects
Abstract
1 Introduction
2 Method of Analysis
3 Impedance Functions of Piles
4 Response of the Structure
5 Conclusions
Acknowledgements
References
Rock-Engineering Design and NTC2018: Some Open Questions
Abstract
1 Introduction
2 Rock Engineering Design
3 Discontinuity Data Obtained with Remote Sensing Tools
3.1 Orientation
3.2 Spacing
3.3 Persistence
3.4 Roughness
3.5 Block Volume
4 Rock Fall Barriers
5 Conclusions
References
Geotechnical Hazards Caused by Freezing-Thawing Processes Induced by Borehole Heat Exchangers
Abstract
1 Introduction
2 The Cyclic Freezing-Thawing Process in Clayey Sediments
3 Effects on Clayey Sediment Properties
3.1 Freeze-Thaw Consolidation
3.2 Effects on Permeability
3.3 Pores Size Distribution
4 Conclusions
References
Site Specific Seismic Performance of Circular Tunnels in Dry Sand
Abstract
1 Introduction
2 Method of Analysis
3 Fragility Curves of Circular Tunnels in Dry Sand
4 Seismic Hazard of the Selected Site
5 Mean Annual Frequency of Exceeding the Performance Levels
6 Conclusions
References
Experimental Study on a Three-Dimensional Passive Earth Pressure Coefficient in Cohesionless Soil
Abstract
1 Introduction
2 Experimental Physical Modelling
2.1 Model Set-up
3 Numerical Modelling
4 Conclusions
Optimization of the Geometry of Monitoring Devices for Contaminant Detection in Cement-Bentonite Cutoff Walls
Abstract
1 Introduction
2 Hydraulic Behavior of the Barrier
2.1 The Numerical Model
2.2 Numerical Results
3 Solute Transport in the Barrier: Numerical Model
3.1 The Numerical Model
3.2 Numerical Results
4 Conclusions
Acknowledgements
References
A Coupled Study of Soil-Abutment-Superstructure Interaction
Abstract
1 Introduction
2 The Full Soil-Bridge Model
2.1 Bridge Structure
2.2 Soil Domain
2.3 Seismic Demand
2.4 Solution Procedure
3 Salient Features of the Soil-Abutment-Superstructure Interaction
4 Conclusions
References
Performance of a Deep Excavation for the New Line C of Rome Underground
Abstract
1 Project Description
2 Field Instrumentation
3 Monitored Results
4 Conclusions
Acknowledgements
References
Preliminary Numerical Simulation of Centrifuge Tests on Tunnel-Building Interaction in Liquefiable Soil
Abstract
1 Introduction
2 Numerical Model
3 Results
4 Conclusions
Acknowledgements
References
Exploring Static Instability Behavior of Sand-Fines Mixtures Based on Different State Variables
Abstract
1 Introduction
2 Materials and Test Program
3 Test Results
3.1 Undrained Shear Behavior at Constant Global Void Ratio (eo)
3.2 Undrained Shear Behavior at Constant Equivalent Granular Void Ratio (e*)
4 Conclusions
References
Site Response Analyses for Post-Earthquake Reconstruction in the Area of L'Aquila: Influence of the Input Subsoil Model
Abstract
1 Introduction
2 Critical Aspects in Defining the Input Subsoil Model for Site Response Analyses in the Area of L'Aquila
2.1 Geological Model
2.2 Geotechnical Model
3 An Example of Site Response Analysis (Via Campomizzi Site)
3.1 Location of the Selected Site and Local Subsoil Conditions
3.2 Input Soil Data for Site Response Analysis
3.3 Selection of Input Ground Motion for Site Response Analysis
3.4 Results of Site Response Analysis
4 Conclusions
References
The Analysis of Weak Rock Block Behaviour by an Advanced Constitutive Model
Abstract
1 Introduction
2 The Case Study of Ventotene
3 Constitutive Assumptions
4 Boundary Value Problems
5 Conclusions
References
Application of a Statistical Approach for the Assessment of Design Block in Rockfall: A Case Study in Sesia Valley (Northern Italy)
Abstract
1 Introduction
2 Construction of the Volume-Frequency Law for Rockfall
3 Application to Nosuggio Site
4 Discussion and Conclusions
Acknowledgements
References
Field Tests on Screw Micropiles Under Axial Loading
Abstract
1 Introduction
2 Pile Description
3 Site Investigation
4 Test Program and Procedure
5 Results and Discussion
5.1 Load-Displacement Curves
5.2 Axial Capacity of the Screw Piles
6 Conclusions
Acknowledgements
References
A Simplified Approach for the Estimation of Settlements of Earth Embankments on Piled Foundations
Abstract
1 Introduction
2 Numerical Model
3 Numerical Results
4 Simplified Approach for the Settlement Estimation
5 Conclusions
References
Geogrids as a Remedial Measure for Seismic-Liquefaction Induced Uplift of Onshore Buried Gas Pipelines
Abstract
1 Introduction
2 1-g Shaking Table Tests
2.1 Model Preparation
2.2 Input Motion
2.3 Tests Description
3 The Experimental Results
4 Conclusions
Acknowledgments
References
FEM 3D Analysis of Settlements Induced by Shallow Tunnels in Coarse-Grained Soils
Abstract
1 Introduction
2 The FEM 3D Model
2.1 General Approach for 3D Modelling
2.2 Modelling of Soil-Shield Interaction
3 Case Histories
4 Results
5 Conclusions
References
A New Methodology for the Rock-Burst Assessment During Tunnel Construction
Abstract
1 Introduction
2 Monitoring of Acoustic Emissions During Tunnelling
3 The New Test for In Situ Characterisation of Rock-Burst Phenomena
4 The Example of the Brenner Base Tunnel
4.1 Rock-Burst Monitoring
4.2 Details of the Experimental Campaign
4.3 Results of the in Situ Test
5 Discussion and Prospective
Acknowledgements
References
Effects of Thickeners Polymers Used in Tunnelling on the Physical and Mechanical Properties of Fine-Grained Soils
Abstract
1 Introduction
2 Mechanized Tunnelling, Thickener Polymers and Soil Reuse
3 Experimental Activities
4 Results and Discussion
5 Conclusions and Future Developments
Acknowledgements
References
Time Evolution of the Height of Dredged Mud in a Containment Facility: A Comparison Between Monitoring Data and Numerical Predictions
Abstract
1 Introduction
2 Numerical Model
2.1 Hydromechanical Behavior
2.2 Filling Process
3 Case Study
4 Model Validation
4.1 Back-Analysis
5 Conclusions
References
Influence of Soil Heterogeneity on the Selection of Input Motion for 1D Seismic Response Analysis
Abstract
1 Introduction
2 Problem Statement and Selection Procedure
3 Soil Profiles and Seismic Hazard at the Reference Site
4 Time-Histories Selection
5 Concluding Remarks
Acknowledgements
References
Hydro-Mechanical Behaviour of a Sand-Bentonite Mixture for the Confinement of Nuclear Wastes
Abstract
1 Introduction
2 The Sand/Bentonite Mixture
3 Observed Hydro-Mechanical Behaviour
4 Fabric Evolution with Hydro-Chemo-Mechanical Loadings
5 Conclusions
References
Numerical Study of Laterally Loaded Pile in Unsaturated Soils
Abstract
1 Introduction
2 Centrifuge Tests
3 Finite Element Model
3.1 Hydro-Mechanical Model
3.2 Geometry and Boundary Conditions
4 Results and Discussion
4.1 Static Load
4.2 Water Table Rising
5 Conclusions
References
Use of Alkali-Activated Fly Ashes for Soil Treatment
Abstract
1 Introduction
2 Materials and Experimental Procedures
3 Results
4 Conclusions
References
Lessons Learnt from the SS 106 Jonica Highway Construction Works
Abstract
1 Introduction
2 Geological Aspects and Description of the Main Works
3 Geotechnical Settings
4 Observed Instability Phenomena
4.1 The Shallow Slide at the North Portal of Trigoni Tunnel
4.2 The Deep Slide at the South Portal of Baldaia I Tunnel
5 Lesson Learnt and Conclusions
Acknowledgements
References
Lightweight Cemented Soils: Mix Design, Production and Control
Abstract
1 Introduction
2 Mix Design
3 The Case Study
3.1 Materials and Methods
3.2 Results
4 Conclusions
References
Soil Stabilization Against Water Erosion via Calcite Precipitation by Plant-Derived Urease
Abstract
1 Introduction
2 Calcite Precipitation via Hydrolysis of Urea
2.1 Background
2.2 Urease Enzyme and Chemical Reagents
3 Experimental Program
3.1 Calcite Precipitation Tests
3.2 Properties of Crude Soybeans Extract
3.3 Soil Stabilization
4 Conclusions
Acknowledgements
References
Insights into the Behaviour of Energy Piles Under Different Head Constraints and Thermal Loads
Abstract
1 Introduction
2 Problem Description and Modelling
3 Thermal Analysis
4 Stress-Strain Response Under Stepwise Thermal Loading
4.1 Case AA: Free Head Pile
4.2 Case AB: Fixed Head Pile
4.3 Case AC: Head Pile of Given Stiffness
5 Stress-Strain Response Under Constant Rate Thermal Loading
6 Conclusions
Acknowledgements
References
Bearing Capacity of Foundations Under Highly Eccentric Loads
Abstract
1 Introduction
2 Case Study: A Wind Farm with Shallow Foundations on Sandy Soils
3 ULS and SLS Assessment of Shallow Foundation
3.1 ULS Assessment of Shallow Foundation
3.2 SLS Assessment of Shallow Foundation
4 Design of Piled Raft Foundation
5 Conclusions
References
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Geotechnical Research for Land Protection and Development

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