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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.

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Almost everything that landscape architects design is ultimately for a community. Community can be the boon or bane of a project, and oftentimes both. LA+ COMMUNITY aims to explore how, over time, each of us moves in and out of multiple communities, shaping them as they shape us, and in turn shaping our landscapes and cities. We ask how different disciplines construct different ideas of community and how those communities are anchored in space and time, whose interests they serve, and what traces they leave. And we examine how — in this pluralistic, fragmented, and fluid world — designers can meaningfully engage with communities. Contributions from: Anne Whiston Spirn reflects upon her personal and professional journey through her long-term engagement with the Mill Creek community in the West Philadelphia Landscape Project. Architect and cofounder of the DisOrdinary Architecture Project Jocelyn Boys discusses how designers and policy-makers make assumptions about the "ordinary user" of public space and explores ways of understanding and improving how people with disabilities engage with such spaces. Historical geographer Garrett Dash Nelson contemplates the conceptual and practical slippages between understanding community in both its geographical and sociological forms, and what this means for designers seeking to give spatial form to the concept of community. A multi-perspective Q+A with BIPOC designers, educators, and artists Kofi Boone, Julian Agyeman, Hanna Kim, Alma du Solier, Jeffrey Hou, Melissa Guerrero, and Kat Engleman confronts the enduring practices of spatial injustice and the need for new processes, engagement, and outcomes for a racially and culturally inclusive future. Philosopher and author Mark Kingwell considers the literal ins and outs of the question “What is community?” in the midst of a global pandemic. Landscape architect Kate Orff speaks about the ways in which she uses community activism and different practices of engagement to drive better design outcomes. Criminologists James Petty + Alison Young open our eyes to the rise of hostile architecture and criminalisation of homelessness in public space. Designer Chrili Car reflects on lessons learned from working with a self-organised community in a remote village in northern Ghana to masterplan long-term local sustainability and greenbelt projects. Ecologist Jodi Hilty, President and Chief Scientist of the Yellowstone to Yukon Initiative, speaks about the realisation of this visionary wildlife-corridor project spanning 3,200 km, two countries, and hundreds of different communities and interests. Historic preservationist and planner Francesca Russello Ammon teases out the contradictions in the canonical urban renewal success story of Philadelphia’s Society Hill. Landscape architect Jessica Henson gives us the inside story on the intractably complex socio-political and ecological task of master planning a 51-mile swath of the Los Angeles River with a diverse range of user communities. Michael Schwarze-Rodrian recounts the extraordinary achievements of the Emscher Landscape Park in Germany’s Ruhrgebiet, where over the last 30 years a working-class community facing the trauma of transition to a post-industrial economy has been sustained by the medium of landscape, without the forms of displacement or gentrification typically associated with high-end greening. Urban planner and author of Just Sustainabilities Julian Agyeman elucidates what the culturally inclusive design of public space entails. Architect Mario Matamoros delivers a stinging critique of the way in which developers and designers in the Honduran city of Tegucigalpa dupe the public with cynical community consultation so as to anesthetise the possibility of dissent, and Sara Padgett Kjaersgaard interviews the CEO of the Federation of Traditional Owner Corporations, Paul Paton and landscape architect Anne-Marie Pisani about working with Indigenous communities in Australia to help facilitate self-determination and connection to their lands.

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