DESIGN, TESTING, AND PRODUCTION OF STEEL-FIBER REINFORCED CONCRETE SEGMENTAL TUNNEL LINING FOR THE EAST SIDE COMBINED SEWER OVERFLOW TUNNEL

摘要

Steel fiber reinforced concrete segmental rings are the final tunnel lining for approximately 85 percent of the alignment for a 6.706-meter (22-foot) internal diameter tunnel being built as part of the East Side Combined Sewer Overflow Tunnel Project. This paper describes the approach adopted for the design of the steel fiber reinforced concrete segments, the development of the performance criteria for the segments, and the testing program used to confirm the performance of the materials and segments in the laboratory and in the field.