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Helical Pile Shoring Project for University of South Florida Sun Dome Expansion
August, 2010
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USF Sun Dome in background with Brownie equipment in foreground.
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30 Magnum 3.0” O.D. 100 KIP piles installed to an average depth of 20 feet
Magnum Plate Brackets mounted to foundation
Helical piles are loaded to 44 tons each using hydraulic rams
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Shotcrete being applied for the first layer of the wall
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Shotcrete and finishing of the second layer after excavating the lower 4 feet
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Load-bearing compression piles being installed in preparation for first excavation cut
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Tieback anchors being installed after completion of first phase excavation
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Existing foundation is notched and prepared for helical compression piles and foundation bracket
Project Overview
A new basketball training building was to be constructed very close to the existing Sun Dome. The plans for the new structure called for the foundation to be poured 8 ft. below the foundation of the existing Sun Dome. Several shoring solutions were considered including sheet piling and constructing of a retaining wall. Brownie Geotech and Magnum Geo-Solutions collaborated on the design of a soil nail and compression pile supported shotcrete (finished) wall that provided the owner with a one-step design and the lowest cost.
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Shotcrete being applied after second phase excavation is completed
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Screed finishing of shotcrete for the first layer of the wall
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First phase excavation is started
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Finished project ready for construction of adjacent basketball practice facility