Advances in Geoengineering along the Belt and Road: Proceedings of 1st Belt and Road Webinar Series on Geotechnics, Energy and Environment 2021 (Lecture Notes in Civil Engineering, 230)

This book is a compilation of selected papers from the 1st Belt and Road Webinar Series on Geological and Geoenvironmental Engineering, March - May 2021. The book comprises selected research related to advances in geo-environmental engineering. Topics covered include rock mechanics, sustainable materials, frozen soils, geotechnical innovations in megacities. The research is related to the sustainable infrastructure development for countries in China's Belt and Road Initiative. The contents of the volume will prove useful to researchers and professionals working in geotechnical and geological engineering domains. Foreword Foreword Preface Organization Organizers of Webinar Series Contents About the Editors Distributed Fiber Optic Sensing in Pile Load Tests: Technological Development and Applications 1 Introduction 2 Fiber Optic Monitoring System of Piles 2.1 Measurement Subsystem 2.2 Data Acquisition Subsystem and Data Transmission and Storage Subsystem 2.3 Data Processing Subsystem 3 Field Installation of Fiber Optic Sensors 3.1 Precast Pile 3.2 Bored Pile 3.3 Steel Pipe Pile 4 Case Studies 4.1 Case Study 1: Vertical Static Load Test 4.2 Case Study 2: Horizontal Static Load Test 5 Conclusion References Heat and Mass Transfer in the Freezing Soils 1 Introduction 2 Method 2.1 Sample Preparation 2.2 Post-freeze-Thaw Sampling and Testing 2.3 Calculation of the Vapour Mass Transfer in Unsaturated Freezing Soils 3 Results 3.1 Determination of the Vapour Mass Transfer in Unsaturated Freezing Soils 4 Discussion 5 Conclusions 5.1 Key Limitations 5.2 Further Research Perspectives of Mass Transfer in the Freezing Soils References Characterization Properties of Three In-House Produced Biochars from Different Feedstock 1 Introductions 2 Materials and Methods 2.1 Preparation of Biochar Samples 2.2 Biochar Characterization 3 Results 3.1 SEM + EDS 3.2 FTIR 3.3 XRD 4 Conclusions References Effect of Matric Suction on Permeability and Shear Strength of Vegetated Soils 1 Introduction 2 Materials and Methods 2.1 Materials and Equipment 2.2 Test Design and Methods 3 Results and Discussion 3.1 Soil-Water Characteristic Curve 3.2 Permeability Coefficient 3.3 Shear Strength 4 Conclusions References On the Use of Optical Fiber Sensors for Debris Flow Monitoring: A Review of Recent Achievements 1 Introduction 2 Fiber Optic Sensors for Debris Flow Monitoring 2.1 FOS-Based Seismic Sensors 2.2 FOS-Based Strain and Pressure Sensors 3 Conclusions References Development of Optic Fiber Sensing Technology for Geotechnical Application - From Laboratory Measurement to Geotechnical Monitoring 1 Brief Review of OFS Application in Geotechnical Engineering 2 Development of OFS for Geotechnical Application: Laboratory Measurement 2.1 FBG-Based Effective Stress Cell 2.2 Distributed Fiber Optic Sensor (DFOS) for Surface Strain Monitoring 3 Development of OFS for Geotechnical Application: Geotechnical Monitoring References A Comparative Analysis of the Energy Security Index in the ASEAN Region 1 Introduction 1.1 Existing Frameworks for the ASEAN Region 2 Methods and Data 2.1 Data Collection Tools and Methods 2.2 Data Coding, Curation and Normalisation 3 Results and Discussion 3.1 Malaysia 3.2 Indonesia 3.3 Singapore 3.4 Thailand 4 Conclusion References Role of Geomechanics in Petroleum Production in Xinjiang Oil Field, China 1 Introduction 2 The Theoretical Background of Geomechanics 2.1 In-Situ Stress Determination 2.2 Thermal-Hydro-Mechanical Coupled Geomechanical Modeling 2.3 Rock Dilation and Permeability Enhancement 3 Application in Petroleum Productions in Xinjiang Oil Fields 3.1 Dilation Assisted Hydraulic Fracturing in a Tight Oil Reservoir 3.2 Dilation Start-Up in the SAGD Process for a Heavy Oil Reservoir 4 Summary References Recent Innovations on Some Coastal Structures 1 Introduction 2 Technical, Economic and Environmental Aspects of Three Different Coastal Structures 2.1 Technical, Economic and Environmental Aspects of Floating Breakwater 2.2 Technical, Economical and Environmental Aspects of Designing Port, Harbor and Marina Using Vertical Porous Walls Instead of Rubble Mound Breakwaters 2.3 Technical, Economical and Environmental Aspects of Method for Damping Ocean Waves in Coastal Area 3 Conclusions References Performance of Expansive Soil Treated with Fiber Reinforced Alkaline-Activator Binder for Pavement Subbase Applications 1 Introduction 2 Materials and Experimental Methodology 2.1 Materials 2.2 Experimental Methodology 3 Results and Discussions 3.1 Microstructural Characterization 3.2 Geotechnical Characterization 4 Conclusions References Bearing Capacity of Tubular Piles: Technological Improvements and Model Testing 1 Introduction 2 Application of Internal Diaphragm in Steel Tubular Piles 3 Laboratory Model Testing 4 Numerical Analysis of Experimental Data 5 Conclusion References Features of the Rock Massif in the Influence Zones of Tectonic Disturbances in the Gold Deposits of Kyrgyzstan 1 Introduction 2 Conclusions References Disaster Risk Reduction in Italy: A Case History of a High-Risk Landslide 1 Introduction 2 Basic Concepts 2.1 Terminology and Risk Equation 2.2 Milestones in DRR 3 Outline of the Italian Civil Protection System 4 DRR Main Tool: Municipality Civil Protection Plan 5 A Case History 6 Final Remarks References Comparison of Overlay Design in Between Lightweight Deflectometer and Benkelman Beam Deflection Test Results: A Case Study in India 1 Introduction 2 Methodology 2.1 LWD and BBD Experiments 3 Results and Discussion 3.1 Estimation of Stress and Strain Analysis 4 Conclusions References Physical and Mechanical Properties of Lime and Wood Ash Plastering Mortars 1 Introduction 2 Materials and Methods 3 Mix Proportions 4 Mortar Testes 4.1 Fresh Mortar Test 4.2 Hardened Mortar Testes 5 Results and Discussion 5.1 Flexural Strength Results 5.2 Compressive Strength Results 5.3 Drying Shrinkage Results 6 Conclusions References Key-Block Theorem Application on Discontinuous Rock Slope Instabilities and Rock Mass Description 1 Introduction 2 Key-Block Theorem 3 Review of Literature on Key-Block Method 4 Key-Block Principles 5 Real Case Implementation 6 Conclusions References Comparison of Accuracy in Prediction of Radial Strain in Stone Columns Using AI Based Models 1 Introduction 2 Methodology 2.1 Theory of Artificial Intelligence (AI) 2.2 Applications of AI in Geotechnical Engineering 2.3 Consideration of Input Parameters 3 AI Techniques/Mathematical Models 4 Determination of Accuracy of Prediction by Different Models 5 Results and Discussion 6 Conclusions References Research Status and Prospect of Anti-slide Piles for Slope Stabilization 1 Introduction 2 Anti-slide Pile-Soil Interaction 2.1 Theoretical Analyses 2.2 Model Tests 3 Designs and Calculation of Anti-slide Piles 3.1 Calculation Methods of Internal Forces in Anti-slide Piles 4 Optimal Designs of Anti-slide Piles 4.1 Optimum Pile Spacing 4.2 Optimal Pile Position 5 Monitoring Techniques of Anti-slide Piles 6 Conclusions References Study on the Dewatering Effect of In-Situ Dredged Mud Under the Combined Action of Flocculant-Absorbent 1 Introduction 2 Test Materials and Programmes 2.1 Laboratory Test Materials and Programmes 2.2 Model Test Programmes and Methodology 3 Study on the Effect of Combined Flocculation-Absorption Treatment Method 3.1 Analysis of Flocculation Effect 3.2 Analysis of the Dewatering Effect with Different Water Absorption Methods 4 Combined Flocculation-Absorption Treatment Process for Very High Moisture Content Slurries 5 Conclusions References Research on Real-Time Monitoring System of Power Transmission and Transformation Slope Based on Hybrid Data Transmission Network 1 Introduction 2 Application of Real-Time Safety Monitoring System for Slopes of Power Transmission and Transformation Facilities 2.1 Indoor Construction of Hybrid Data Transmission System 2.2 On-site Construction of a Real-Time Safety Monitoring System for Slopes of Power Transmission and Transformation Facilities 3 Analysis of Monitoring Results 3.1 Rainfall and Slope Surface Settlement 3.2 Analysis of Results of Horizontal Displacement of Deep Soil 3.3 Soil Pressure 3.4 Pore Water Pressure 4 Result References Study of Solidification Technology of Marine Sludge by MICP Combined with Portland Cement 1 Introduction 2 Materials and Methods 2.1 Soil Sample 2.2 Strains and Culture 2.3 Treatment Methodology 2.4 Prepare Sample 2.5 UCS Testing 3 Results and Discussion 3.1 Cement Content 3.2 Calcium Ion Concentration 3.3 Source of Calcium Ions 3.4 Reinforcement Mechanism 4 Conclusion References Hydraulic Properties of Unsaturated Engineering Soils Vegetated with Vetiver Grass in Green Infrastructures 1 Introduction 2 Materials, Theory and Methodology 2.1 Field Site and Vegetation Cultivation 2.2 In-Situ Measurement of Soil Hydraulic Properties 2.3 Meteorological Monitoring During Field Test 2.4 Analyses of Root Vertical Distribution 2.5 Measurement of Hydraulic Properties Based on Simplified Evaporation Method 3 Results and Discussions 3.1 Root Distribution of Vegetated Soils 3.2 Field-Measured Soil Water Characteristic Curves of Bare and Vegetated Soils 3.3 Field-Measured Soil Suction During Different Stages 3.4 Field-Measured Soil Moisture Content During Different Stages 3.5 Indoor-Measured Soil Water Characteristic Curves of Bare and Vegetated Soils 3.6 Unsaturated Permeability of Soils with Different Root Biomass 4 Conclusions References Study on Disturbance Assessment and Control of Construction Near Existing Cable Tunnel 1 Introduction 2 Numerical Simulation 2.1 Proposed Site 2.2 Materials Properties 2.3 Construction Conditions 3 Results of Analysis 3.1 Influence of the Length of the Foundation Pit on the Cable Tunnel 3.2 Influence of the Width of the Foundation Pit on the Cable Tunnel 3.3 Influence of the Depth of Foundation Pit on the Cable Tunnel 4 Evaluation of the Influence of the Excavation of the Foundation Pit 5 Conclusions References Urban Transportation System Problems in Context of the Indian Conditions 1 Introduction 2 Literature 3 Methodology 4 Results and Discussions 4.1 Urban Transportation Systems Deficiencies 4.2 Impact 4.3 Suggested Mitigation Measures 5 Conclusions References Experimental Study on Overlying Strata Deformation and Failure Using Distributed Intelligent Sensing 1 Introduction 2 Technological Principles 2.1 BOTDR/A 2.2 CRP 3 Experimental Research on Deformation and Failure of Mining Rock Based on DFOS 3.1 Laboratory Test 3.2 On-site Test 4 Conclusion References Analysis of Influencing Factors on Bearing Characteristics of PCC Energy Pile Group 1 Introduction 2 Establishment of Numerical Model 3 Influence Analysis of the Number of Piles 4 Influence Analysis of Pile Spacing 5 Conclusions References Author Index This book is a compilation of selected papers from the 1st Belt and Road Webinar Series on Geotechnics, Energy and Environment, March - May 2021. The book comprises selected research related to advances in geo-environmental engineering. Topics covered include rock mechanics, sustainable materials, frozen soils, geotechnical innovations in megacities. The research is related to the sustainable infrastructure development for countries in China's Belt and Road Initiative. The contents of the volume will prove useful to researchers and professionals working in geotechnical and geological engineering domains.