transportation systems, conveyance systems, and other forms of sustainable infrastructure.The proceedings describe the evolving nature of underground work, methods, and technology. This book documents the challenges faced and the lessons learned while advancing projects in support of a sustainable future. The contributions reflect the ability to adapt and excel in the environment of continual evolution that characterizes the tunneling industry today.Taken from a collection of papers presented at the prestigious 2010 North American Tunneling Conference, the authors take you deep inside projects from around the world:Advancements in technology and sustainability, pressurized face tunneling and tunnel lining, and remediationDesign considerations, including design validation, optimization and alignment, and strength and stability assessmentProject planning, from estimating cost and project risk to delivering your project on timeCase histories of small-diameter and conventional tunneling, and lessons learned while operating under difficult conditionsWhether it is building a subway extension under the streets or New York City or dealing with microtremors and rock bursts during construction, you will learn from the successes and failures of some of the most challenging construction projects undertaken in this rapidly evolving industry.

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