GRL Engineers, Inc. has provided reliable testing services and analyses in the deep foundations industry for over 40 years. Known for quick response-time, the engineering firm covers testing throughout the United States and offshore. This Pennsylvania Office of GRL Engineers, Inc., provides driven pile and drilled shaft testing services for bridges, highways, ports, and large…
Fugro defeated 60 other teams from industry and academia in a contest to predict pile driving blowcount vs. depth for jacket piles installed in the North Sea. The contest ran from April to December of […] The post Fugro Wins Pile-Driving Prediction Contest With Machine-Learning appeared first on GeoPrac.net.
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Hawthorne, N.J. (January 30, 2020): Deep Foundations Institute (DFI) Educational Trust and the Terracon Foundation announce the establishment of the DFI Educational Trust/Terracon Consultants Scholarship Fund, which will provide scholarships to engineering students attending any […] The post DFI Educational Trust and Terracon Announce a New Scholarship Fund appeared first on GeoPrac.net.
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One of the concepts students in geotechnical engineering courses seem to have the most trouble with is estimating stresses in concrete piles during pick-up and setting them in place to drive. The basic problem is that it’s sometimes hard to get our heads around the analytical simplification of the actual situation. Let’s start by looking at the operation itself. These first photos come from a job in Delaware in 1998, using a Vulcan 530 to drive cylinder piles.
The pile starts on the ground. What we have here is “one-point pickup” where only one line is used to pick up the pile. It’s put in a certain place (more about that later) in this case using a “choker.” (Some piles have pickup lifting eyes, they are best cast into the pile at the time of manufacture.) In this position the pile is horizontal. Once the crane operator lifts the choker…
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This paper–which is part of the STADYN project–was presented at the IFCEE 2018 conference in Orlando, FL, 7 March 2018. The slide presentation for the paper is below.
vulcanhammer.net 