Drilled shaft inspection manual

Drilled shafts installed in lakes or rivers require use of a casing placed from above the water surface to a minimum embedment into the river or lake bottom. Do not define the top of the drilled shaft in the normal manner (a set distance below finished grade). Define the top of the drilled shaft as 1 to 2 ft. above the normal water elevation.  · The participants will receive a comprehensive reference manual on drilled shaft construction and design used by engineers who perform detailed designs of drilled shafts, write construction specifications, and evaluate the performance of contractors through a comprehensive inspection program. (FHWA), U.S. Department of Transportation (DOT. Drilled Shaft Construction Inspector Training November Preconstruction ODOT Drilled Shaft Inspection Checklist Pre-Construction Drilled Shaft Coordination Meeting Drill Shaft Coordination Meeting At least seven calendar days before beginning any shaft construction work To discuss: – Shaft Installation Plan.

What is a Drilled Shaft? Drilled shafts require rigorous inspection. Initial plan review is a must. Should read Section of Standard Specs to clearly understand different types of shaft construction. Need to become familiar with procedures in the specs in event problems are encountered. Figures courtesy of FHWA NHI Drilled Shaft Foundation Inspection Course Drilled Deep Foundations – Samuel Paikowsky 29 of Water Table at or Below the. construction techniques. To become familiar with drilled shaft installation techniques, a working knowledge of the tools used by contractors is also essential. The Drilled Shaft Inspector’s Manual will provide the individual with a working knowledge of drilled shaft installation.

C. Inspection staff notified the contractor if mitigation measures are not being completed in the G. Caisson Bottom and Side Inspections on file. Are the in‐out times properly recorded on the drilled shaft log? Was the inspector able to verify elevations? Did the inspector verify the contractor. three years experience in the construction of drilled shafts using the Provide the make and model of the shaft inspection device, if.