Virginia Center for Transportation Innovation and Research, in their paper, Evaluation of Drilled Shafts
with Self-Consolidating Concrete.
Specific topics include causes of house subsidence in an area adjacent to Illinois' sinkhole plain, applying the electrical resistivity method in steeply dipping karst terrane, instrumentation and preliminary results from probing the plumbing of Wakulla Spring, water level variation and predicting the Pingshan Sinkhole in Guizhou in southwestern China, the numerical analysis of embankments supported by geosynthetics over drilled shafts
in karst terrains, and gypsiferous soils as an engineering problem.
Also methods used for quality control of the drilled shafts
We] ensured that the existing timber piles would not be overstressed under static or seismic loads through flexible design of new drilled shafts
and the use of isolation bearings.
The bridge superstructure will be constructed on full height, cast-in-place concrete abutments founded on 30 diameter drilled shafts
Skyline also manufactures drilled shafts
, caissons, specialty steel products and sign poles.
Areas covered include reliability-based design, LRFD concepts, in situ soil testing, geotechnical design of combined spread footing, design of drilled shafts
, and stability analysis and design of slopes.
Monk's geotechnical expertise helped resolve several complicated engineering issues associated with the bridge pilings and drilled shafts
Gray Mullins, Associate Professor, University of South Florida, Tampa, FL, discussed the issues related to grouted drilled shafts
and quality control; Dennis Boehm, senior project manager, Hayward Baker Company, discussed the basics of micropiles and some recent applications.
often make superlative bridge foundations.
Installation of drilled shafts
, mast arms and signal equipment.
The substructure is composed of steel pipe piles in monolithic end-wall-type abutments and single-column flared piers founded on drilled shafts