Boston's Jacked Tunnels Solve Interchange Challenge
Abstract:The Central Artery in Boston, Massachusetts, known locally as the 'Big Dig', is a landmark project in urban infrastructure redevelopment. It was vital to minimise the disruption during construction. The tunnel jacking, which provided a key solution to this need, is by far the largest and most complex project of its kind in the world. Well over ten times the size of any jacked tunnels attempted in the USA before, it has involved a wide range of innovation. The tunnel jacking has delivered a low maintenance, robust construction while bringing important environmental benefits and contributed to over US$300 million in construction savings. The project has strongly demonstrated that, for particular spatial and operational constraints, tunnel jacking can provide the best overall value and performance in creating new infrastructure.
Document Type: Research Article
Publication date: November 1, 2005
Structural Engineering International (SEI), the quarterly Journal of IABSE, published since 1991, is the leading international journal of structural engineering dealing with all types of structures and materials. SEI offers its readers a unique blend of short profiles on recent structures, and longer, in-depth technical articles on research, development, design, construction and maintenance. Articles are written by practicing engineers and academia from around the world and reflect the high standards of IABSE. IABSE Peer Review stamps are given to papers that have passed through a highly selective review process and demonstrate a significant contribution to the state of structural engineering knowledge.To recognise contributions of the highest quality, an Outstanding Paper Award is presented each year.
SEI is printed in Switzerland; ISSN 1016-8664; E-ISSN 1683-0350
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