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 Test Pile ProgramNew Haven, CT Blakeslee Arpaia Chapman performed a contract to drive test piles for Parson Bickerhof Quade & Douglas (PBQ&D), coordinators for the new Quinnipiac River Bridge and I-91/I-95 interchange. The construction for both projects is scheduled to start in 2004. The piles supplied design and constructability information for the selection of the foundation piles. The project required the installation of approximately 50 driven piles of various materials and lengths. Static load test were performed on half of them. The piles were primarily pipe piles and prestressed concrete piles; however, monotube piles and H-piles were also tested. The largest pile was a 180 foot long, 24-inch diameter pipe pile, which was load tested to 675 tons. The project had several challenges. The most significant were scheduling and coordination issues. It was completed in three months in order to meet the engineers' aggressive design schedule. The work had to be coordinated with the Connecticut DOT and six different design and geotechnical engineering consultants responsible for different parts of the project. Other challenges included the size and variety of the piles and driving them to depths up to 180 feet with the intent of determining how much capacity each pile type could generate. More detailed version here Top |
