Energy Geostructures 1st Edition by Lyesse Laloui ISBN 184821572X 9781848215726

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Product details: 

ISBN 10: 184821572X 

ISBN 13: 9781848215726

Author: Lyesse Laloui

Table of contents: 

Part 1. Physical Modeling of Energy Piles at Different Scales
Chapter 1. Soil Response under Thermomechanical Conditions Imposed by Energy Geostructures
1.1. Introduction
1.2. Thermomechanical behavior of soils
1.2.1. Thermomechanical behavior of clays
1.3. Constitutive modeling of the thermomechanical behavior of soils
1.3.1. The ACMEG-T model
1.4. Acknowledgments
1.5. Bibliography
Chapter 2. Full-scale In Situ Testing of Energy Piles
2.1. Monitoring the thermomechanical response of energy piles
2.1.1. Measuring strains and temperature along the piles
2.1.2. Measuring pile tip compression
2.1.3. Monitoring the behavior of the soil
2.2. Description of the two full-scale in situ experimental sites
2.2.1. Single full-scale test pile
2.2.2. Full-scale test on a group of energy piles
2.2.3. Testing procedure
2.3. Thermomechanical behavior of energy piles
2.3.1. General methodology
2.3.2. Thermomechanical response of the single test pile
2.3.3. Thermomechanical response of a group of energy piles
2.4. Conclusions
2.5. Bibliography
Chapter 3. Observed Response of Energy Geostructures
3.1. Overview of published observational data sources
3.2. Thermal storage and harvesting
3.2.1. Overview
3.2.2. Energy injection/extraction rates
3.2.3. Thermal fields
3.3. Thermomechanical effects
3.3.1. Overview
3.3.2. Structural effects
3.3.3. Soil-structure interactions
3.4. Summary
3.5. Acknowledgments
3.6. Bibliography
Chapter 4. Behavior of Heat-Exchanger Piles from Physical Modeling
4.1. Introduction
4.2. Physical modeling of pile foundations
4.2.1. Boundary conditions
4.2.2. Mechanical loading system
4.2.3. Monitoring
4.2.4. Pile’s behavior
4.3. Physical modeling of a heat-exchanger pile
4.3.1. Experimental setup
4.3.2. Mechanical behavior of a pile under thermomechanical loading
4.3.3. Heat transfer
4.3.4. Soil–pile interface
4.3.5. Lessons learned from physical modeling of a heat-exchanger pile
4.4. Conclusions
4.5. Acknowledgments
4.6. Bibliography
Chapter 5. Centrifuge Modeling of Energy Foundations
5.1. Introduction
5.2. Background on thermomechanical soil–structure interaction
5.3. Centrifuge modeling concepts
5.4. Centrifuge modeling components
5.4.1. Centrifuge model fabrication and characterization
5.4.2. Experimental setup
5.5. Centrifuge modeling tests for semi-floating foundations
5.5.1. Soil details
5.5.2. Foundation A: isothermal load tests to failure
5.5.3. Foundation B: thermomechanical stress–strain modeling
5.6. Conclusions
5.7. Acknowledgments
5.8. Bibliography
Part 2. Numerical Modeling of Energy Geostructures
Chapter 6. Alternative Uses of Heat-Exchanger Geostructures
6.1. Small, dispersed foundations for deck de-icing
6.1.1. Heat demand and specificities of small foundations
6.1.2. Modeling of the pile
6.1.3. Results and analysis
6.2. Heat-exchanger anchors
6.2.1. Technical aspects and possible users
6.2.2. Method of investigation
6.2.3. Optimizing the heat production
6.2.4. Mechanical implications of heat production
6.3. Conclusions
6.4. Acknowledgments
6.5. Bibliography
Chapter 7. Numerical Analysis of the Bearing Capacity of Thermoactive Piles Under Cyclic Axial Loadi
7.1. Introduction
7.2. Bearing capacity of a pile under an additional thermal load
7.3. A constitutive law of soil–pile interface under cyclic loading: the Modjoin law
7.4. Numerical analysis of a thermoactive pile under thermal cyclic loading
7.4.1. Reaction to the upper structure
7.4.2. Normal force in the pile
7.4.3. Mobilized shaft frictions at the soil–pile interface
7.5. Recommendation for real-scale thermoactive piles
7.5.1. Effect of different loading rates for the applied mechanical load
7.5.2. Effect of thermoactive piles on piled raft foundation
7.6. Conclusions
7.7. Acknowledgments
7.8. Bibliography
Chapter 8. Energy Geostructures in Unsaturated Soils
8.1. Introduction
8.2. Thermally induced water flow
8.3. Thermal volume change in unsaturated soils
8.4. Thermal effects on soil strength and stiffness
8.5. Thermal effects on hydraulic properties of unsaturated soils
8.6. Thermal effects on soil–geosynthetic interaction
8.7. Conclusions
8.8. Acknowledgments
8.9. Bibliography
Chapter 9. Energy Geostructures in Cooling-Dominated Climates
9.1. Introduction
9.2. Climatic factors and their effects on soil conditions and properties
9.3. Saturated and unsaturated soil thermal properties and heat transfer
9.4. Impact of soil conditions on energy geostructures performance
9.4.1. Laboratory experimental design
9.4.2. Numerical modeling
9.4.3. Laboratory test and numerical results
9.4.4. Modeling the full pile
9.5. Full scale tests on energy piles
9.6. Conclusions
9.7. Acknowledgments
9.8. Bibliography
Chapter 10. Impact of Transient Heat Diffusion of a Thermoactive Pile on the Surrounding Soil
10.1. Introduction
10.2. Heat transfer phenomenon
10.2.1. Soil properties
10.2.2. Energy conservation in the transient regime
10.3. Numerical modeling of thermal diffusion in a thermoactive pile
10.3.1. A two-dimensional model – internal diffusion in the thermoactive pile
10.3.2. A three-dimensional model – external diffusion to the surrounding soil
10.4. Impact of the long-term thermal operation
10.4.1. Groundwater flow effect on the heat diffusion
10.4.2. Mechanical durability under thermal cyclic stress
10.5. Conclusions
10.6. Acknowledgments
10.7. Bibliography
Chapter 11. Ground-Source Bridge Deck De-icing Systems Using Energy Foundations
11.1. Introduction
11.2. Ground-source heating of bridge decks
11.3. Thermal processes and evaluation of energy demand for ground-source de-icing systems
11.4. Numerical modeling and analysis results
11.5. Summary and conclusions
11.6. Acknowledgments
11.7. Bibliography
Part 3. Engineering Practice
Chapter 12. Delivery of Energy Geostructures
12.1. Introduction
12.2. Planning and design
12.2.1. Coordination and communication
12.2.2. Design management
12.2.3. System design redundancy
12.2.4. Awareness and skills training
12.3. Construction
12.3.1. Process quality control
12.3.2. Installation details
12.4. System integration and commissioning
12.5. Summary
12.6. Acknowledgments
12.7. Bibliography
Chapter 13. Thermo-Pile: A Numerical Tool for the Design of Energy Piles
13.1. Basic assumptions
13.2. Mathematical formulation and numerical implementation
13.2.1. The load-transfer method
13.2.2. Displacements induced by the mechanical load
13.2.3. Displacements induced by the thermal load
13.3. Validation of the method
13.4. Piled-beams with energy piles
13.4.1. General method
13.4.2. Determination of the integration constants
13.4.3. Example of simulation
13.5. Conclusions
13.6. Acknowledgments
13.7. Bibliography
Chapter 14. A Case Study: The Dock Midfield of Zurich Airport
14.1. The Dock Midfield
14.2. Design process of the energy pile system
14.2.1. Pile system concept
14.2.2. Problems to solve
14.2.3. First calculations
14.2.4. Second calculations
14.2.5. Third calculations
14.2.6. Final simulations using the TRNSYS program
14.3. The PILESIM program
14.4. System design and measurement points
14.5. Measured thermal performances of the system
14.6. System optimization and integration
14.7. Conclusions
14.8. Acknowledgments
14.9. Bibliography

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