Construction of Underground Facilities for the Narragansett Bay Combined Sewer Overflow Program,Phase I

摘要

By any measure, the Narragansett Bay Commission's (NBC) Combined Sewer Overflow (CSO) Tunnel was a large, demanding project comprised of several risky elements, and included some considerable challenges, delays and disputes involving ground freezing, shaft construction, excavation and support of a large rock cavern, tunnelrnboring machine (TBM) mining and adit excavation by blasting.