The book describes the theory and current practices for design of earth lateral support for deep excavations in soil. It addresses basic principles of soil mechanics and explains how these principles are embodied in design methods including hand calculations. It then introduces the use of numerical methods including the fundamental "beam on springs" models, and then more sophisticated computer programmes which can model soil as a continuum in two or three dimensions. Constitutive relationships are introduced that are in use for representing the behaviour of soil including a strain hardening model, and a Cam Clay model including groundwater flow and coupled consolidation. These methods are illustrated by reference to practical applications and case histories from the author's direct experience, and some of the pitfalls that can occur are discussed. Theory and design are strongly tied to construction practice, with emphasis on monitoring the retaining structures and movement of surrounding ground and structures, in the context of safety and the Observational Method. Examples are presented for conventional "Bottom-up" and "Top-down" sequences, along with hybrid sequences giving tips on how to optimise the design and effect economies of cost and time for construction. It is written for practising geotechnical, civil and structural engineers, and especially for senior and MSc students.

The book describes the theory and current practices for design of earth lateral support for deep excavations in soil. It addresses basic principles of soil mechanics and explains how these principles are embodied in design methods including hand calculations. It then introduces the use of numerical methods including the fundamental "beam on springs" models, and then more sophisticated computer programmes which can model soil as a continuum in two or three dimensions. Constitutive relationships are introduced that are in use for representing the behaviour of soil including a strain hardening model, and a Cam Clay model including groundwater flow and coupled consolidation. These methods are illustrated by reference to practical applications and case histories from the author's direct experience, and some of the pitfalls that can occur are discussed. Theory and design are strongly tied to construction practice, with emphasis on monitoring the retaining structures and movement of surrounding ground and structures, in the context of safety and the Observational Method. Examples are presented for conventional "Bottom-up" and "Top-down" sequences, along with hybrid sequences giving tips on how to optimise the design and effect economies of cost and time for construction. It is written for practising geotechnical, civil and structural engineers, and especially for senior and MSc students.

New ideas and technologies are transforming the ways we build and inhabit underground space. This book explores how these innovations can help to make our increasingly dense, climate-stressed cities both more resilient and more of a pleasure to live in. While it sets out practical design approaches, Underground Cities is not a technical manual. Designed for everyone with an interest in the future of our cities, it is beautifully illustrated and written in an accessible style that draws on the rich tradition of underworlds, both real and imagined, in art, history and poetry. Global in scope, the book ranges across continents as it surveys the vast expansion in the potential of the underground. The opening section, 'A New Frontier', looks at two pioneering cold-climate cities, Montreal and Helsinki, which developed new uses for the underground from the 1960s on. The closing section, 'Looking Forward', offers glimpses of the city of the future - of what we might be able to achieve in the next 50 or 60 years. Focusing on Hong Kong, Singapore and Tokyo, it shows projects that are going deeper, achieving a greater synergy of uses and preparing the way for new urban forms. In between, it reviews a range of innovative ideas and presents buildings and projects by leading international architects and artists, among them Jun'ya Ishigami, James Turrell, Dominique Perrault and Thomas Heatherwick, which highlight the advances in technology that are making it possible to bring the elements of nature - light, air, vegetation - deep underground. Works include a subterranean oasis, a refuge from the desert heat; a museum extension that deploys light and colour to define space; a multi-modal underground transport hub that evokes the arcades of nineteenth-century Paris, but with an added profusion of plants; and a troglodytic house and restaurant, sunk into the earth to create atmosphere.

The life of Benedict Arnold, the American Revolutionary War general who attempted to surrender West Point to the British in 1780, didn't end after he betrayed his American compatriots. In the newly formed United States, he was condemned as a conspirator and in Britain, he was suspected of the same. He quickly left America, spent a short time in London, and largely operated in Canada and the Caribbean as a smuggler, a mercenary and a pariah. Although much has been written about Arnold's famous fall from grace, this book is the story of a charismatic man of vaulting ambition. With new research and photographs, it delves into his last twenty years. Arnold remains fascinating as a toppled hero and a flagrant traitor. Another American general wrote in the 1780s that Arnold "never does anything by halves"; indeed, he lived on a big scale. This study documents each of the various points of the globe where the restless Arnold operated and lived, pursuing wealth, status, and redemption.

Aaron Burr - Revolutionary War hero, third vice president of the United States and a controversial figure of the early republic - was tried and acquitted of treason charges in 1807, and thereafter departed for self-imposed exile in Europe, his political career in ruins. Adrift in Paris for 15 months, he led a marginal existence on the run from creditors and the courts, getting by on handouts. While other Americans in Paris enjoyed official status that insulated them from life in the capital, Burr dreamed up fruitless schemes and pawned his possessions, yet remained in high spirits, enjoying Parisian theater and cafes. He shopped, flirted, paid for sex and associated with friends old and new while gathering the resolve to return to America. Burr's Paris journal is a rare item, with only 250 unexpurgated copies printed in 1903. In it he relates his fascinating stories and describes Parisian life at the height of Napoleon's power. Drawing on Burr's journal and other sources, this book provides a self-portrait of the down-and-out Founding Father abroad.