LARGE-DIAMETER DEEP SHAFTS FOR THE DEEP ROCK TUNNEL CONNECTOR PROJECT, INDIANAPOLIS, INDIANA

摘要

The Deep Rock Tunnel Connector Project constructed by S-K JV, a joint venture between J.F. Shea Construction and Kiewit Infrastructure Co., is a $179 million project. The project is being constructed to address combined sewer overflows from outfalls along the White River. The contract includes a tunnel drive of 12,678 meters (41,593 If), tunnel lining of 12,678 meters (41,593 If) and two access shafts 82.6 meter (271 ft.) and 66.4 meter (218 ft.) in depth and both 10.6 meters (35 ft.) in diameter. The geology in the shafts consists of an average 30.5 meter (100 ft.) deposit of glacial sediment overburden then New Albany Shale and a bedrock combination of Limestone and Dolomite. This paper will present a general overview of the entire project and the construction methods for excavating two deep shafts, including slurry wall construction, drill and blast excavation methods, muck handling and shaft final concrete lining.