Innovation in Underground Engineering

Energy geostructures are a tremendous innovation in the field of
foundation engineering and are spreading rapidly throughout the
world. They allow the procurement of a renewable and clean source
of energy which can be used for heating and cooling buildings. This
technology couples the structural role of geostructures with the
energy supply, using the principle of shallow geothermal energy.
This book provides a sound basis in the challenging area of energy
geostructures.

The objective of this book is to supply the reader with an
exhaustive overview on the most up-to-date and available knowledge
of these structures. It details the procedures that are currently
being applied in the regions where geostructures are being
implemented. The book is divided into three parts, each of which is
divided into chapters, and is written by the brightest engineers
and researchers in the field. After an introduction to the
technology as well as to the main effects induced by temperature
variation on the geostructures, Part 1 is devoted to the physical
modeling of energy geostructures, including in situ investigations,
centrifuge testing and small-scale experiments. The second part
includes numerical simulation results of energy piles, tunnels and
bridge foundations, while also considering the implementation of
such structures in different climatic areas. The final part
concerns practical engineering aspects, from the delivery of energy
geostructures through the development of design tools for their
geotechnical dimensioning. The book concludes with a real case
study.

Contents

Part 1. Physical Modeling of Energy Piles at Different
Scales

1. Soil Response under Thermomechanical Conditions Imposed by
Energy Geostructures, Alice Di Donna and Lyesse Laloui.

2. Full-scale In Situ Testing of Energy Piles, Thomas Mimouni and
Lyesse Laloui.

3. Observed Response of Energy Geostructures, Peter
Bourne-Webb.

4. Behavior of Heat-Exchanger Piles from Physical Modeling, Anh
Minh 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, Fabrice
Dupray, Thomas Mimouni and Lyesse Laloui.

7. Numerical Analysis of the Bearing Capacity of Thermoactive Piles
Under Cyclic Axial Loading, Maria E. Suryatriyastuti, Hussein
Mroueh , 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 Anis
Akrouch, Marcelo Sanchez and Jean-Louis Briaud.

10. Impact of Transient Heat Diffusion of a Thermoactive Pile on
the Surrounding Soil, Maria E. Suryatriyastuti, Hussein Mroueh and
Sébastien Burlon.

11. Ground-Source Bridge Deck De-icing Systems Using Energy
Foundations, C. Guney Olgun and G. Allen Bowers.

Part 3. Engineering Practice

12. Delivery of Energy Geostructures, Peter Bourne-Webb with
contributions from Tony Amis,

Jean-Baptiste Bernard, Wolf Friedemann, Nico Von Der Hude, Norbert
Pralle, 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, Daniel
Pahud.

About the Authors

Lyesse Laloui is Chair Professor, Head of the Soil Mechanics,
Geoengineering and CO2 storage Laboratory and Director of Civil
Engineering at the Swiss Federal Institute of Technology (EPFL) in
Lausanne, Switzerland.

Alice Di Donna is a researcher at the Laboratory of Soil Mechanics
at the Swiss Federal Institute of Technology (EPFL) in Lausanne,
Switzerland.