Energy Geostructures

Name: Energy Geostructures | Innovation in Underground Engineering
Brand: Wiley-ISTE
Price: 139.99 EUR
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Innovation in Underground Engineering

Lyesse Laloui Alice Di Donna(Editor)

Wiley-ISTE (Publisher)

Published on 3. September 2013

320 pages

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978-1-118-76190-8 (ISBN)

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Energy geostructures are a tremendous innovation in the field offoundation engineering and are spreading rapidly throughout theworld. They allow the procurement of a renewable and clean sourceof energy which can be used for heating and cooling buildings. Thistechnology couples the structural role of geostructures with theenergy supply, using the principle of shallow geothermal energy.This book provides a sound basis in the challenging area of energygeostructures. The objective of this book is to supply the reader with anexhaustive overview on the most up-to-date and available knowledgeof these structures. It details the procedures that are currentlybeing applied in the regions where geostructures are beingimplemented. The book is divided into three parts, each of which isdivided into chapters, and is written by the brightest engineersand researchers in the field. After an introduction to thetechnology as well as to the main effects induced by temperaturevariation on the geostructures, Part 1 is devoted to the physicalmodeling of energy geostructures, including in situ investigations,centrifuge testing and small-scale experiments. The second partincludes numerical simulation results of energy piles, tunnels andbridge foundations, while also considering the implementation ofsuch structures in different climatic areas. The final partconcerns practical engineering aspects, from the delivery of energygeostructures through the development of design tools for theirgeotechnical dimensioning. The book concludes with a real casestudy. Contents Part 1. Physical Modeling of Energy Piles at DifferentScales 1. Soil Response under Thermomechanical Conditions Imposed byEnergy Geostructures, Alice Di Donna and Lyesse Laloui. 2. Full-scale In Situ Testing of Energy Piles, Thomas Mimouni andLyesse Laloui. 3. Observed Response of Energy Geostructures, PeterBourne-Webb. 4. Behavior of Heat-Exchanger Piles from Physical Modeling, AnhMinh Tang, Jean-Michel Pereira, Ghazi Hassen and Neda Yavari. 5. Centrifuge Modeling of Energy Foundations, John S.McCartney. Part 2. Numerical Modeling of Energy Geostructures 6. Alternative Uses of Heat-Exchanger Geostructures, FabriceDupray, Thomas Mimouni and Lyesse Laloui. 7. Numerical Analysis of the Bearing Capacity of Thermoactive PilesUnder Cyclic Axial Loading, Maria E. Suryatriyastuti, HusseinMroueh , Sébastien Burlon and Julien Habert. 8. Energy Geostructures in Unsaturated Soils, John S. McCartney,Charles J.R. Coccia , Nahed Alsherif and Melissa A. Stewart. 9. Energy Geostructures in Cooling-Dominated Climates, Ghassan AnisAkrouch, Marcelo Sanchez and Jean-Louis Briaud. 10. Impact of Transient Heat Diffusion of a Thermoactive Pile onthe Surrounding Soil, Maria E. Suryatriyastuti, Hussein Mroueh andSébastien Burlon. 11. Ground-Source Bridge Deck De-icing Systems Using EnergyFoundations, C. Guney Olgun and G. Allen Bowers. Part 3. Engineering Practice 12. Delivery of Energy Geostructures, Peter Bourne-Webb withcontributions from Tony Amis, Jean-Baptiste Bernard, Wolf Friedemann, Nico Von Der Hude, NorbertPralle, Veli Matti Uotinen and Bernhard Widerin. 13. Thermo-Pile: A Numerical Tool for the Design of Energy Piles,Thomas Mimouni and Lyesse Laloui. 14. A Case Study: The Dock Midfield of Zurich Airport, DanielPahud. About the Authors Lyesse Laloui is Chair Professor, Head of the Soil Mechanics,Geoengineering and CO2 storage Laboratory and Director of CivilEngineering at the Swiss Federal Institute of Technology (EPFL) inLausanne, Switzerland. Alice Di Donna is a researcher at the Laboratory of Soil Mechanicsat the Swiss Federal Institute of Technology (EPFL) in Lausanne,Switzerland.

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Content

Cover
Title Page
Contents
Preface
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 Loading
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
List of Authors
Index

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