TIGHT TOLERANCES: INSTALLATION OF FIVE 60-INCH-DIAMETER, 358-FT DEEP WELL PUMP CASINGS

摘要

Hydraulic conditions associated with a new deep water intake for the City of Austin's Water Treatment Plant No. 4 required installing five 60 inch diameter steel well casings a depth of 358 feet. Due to requirements of the vertical turbine pumps, these well casings had to be installed to tight tolerances. Using a raise bore method of construction, a qualified contractor combined with an experienced project team installed the well casings as planned, making this difficult installation appear easy. This paper will present a case history of the challenges and solutions found during installation of these well casings on this project.