'Top-Down' Approach Resolves D. C. Hotel Project's Deep Site Challenges

摘要

The use of the so-called top-down construction method on a project that required excavation to a depth of nearly 100 ft helped to resolve a number of site challenges but also raised additional engineering issues for the design team of the Marriott Marquis Convention Center Hotel, now under construction in Washington, D.C. The approximately 1 million sq ft, four-star hotel is being constructed adjacent to the city's Wal-ter E.