OLD SEWER, BIG RISKS: MANAGING RISKS DURING THE DESIGN AND CONSTRUCTION OF A 21-STORY BUILDING ADJACENT TO A CRITICAL 100-YEAR-OLD SEWER STRUCTURE

摘要

Risk-reduction measures implemented during the design and construction of a 21-story pile-supported building adjacent to a below-grade 100-year-old sewer structure were keys to a successful foundation system. Avoiding damage to the existing sewer structure during construction activities and the future ability to access the structure post-construction were the main concerns for the utility owner.