For the SD1975 Bridge Project over Lindbergh Drive in Atlanta, GA, Team FTG provided a range of specialty testing for Drilled Shaft inspection in construction of a new railroad bridge. For Deep Foundation Contractor Clearwater Construction of Mercer, Pennsylvania. From its deep foundation inspection arsenal, FTG utilized two downhole cameras to inspect and confirm the quality of the granite rock sockets. FTG’s pan and tilt camera was utilized for its 360o view to visually inspect the sidewalls of the rock sockets for any voids or seams in the granite that could break away and diminish the skin friction capacity of the shafts. FTG also used its Miniature Shaft Inspection Device (MiniSID) to inspect the bottom of the Shaft for loose sediment that had settled during the drilling process that could diminish the end bearing capacity of the Shaft.
Following completion of Drilled Shaft construction FTG performed Crosshole Sonic Logging (CSL) Testing to ensure the consistency and integrity of the concrete placed in the Drilled Shafts.