The shaft is 95-ft deep and 9-ft in diameter. The results of the load test will be used to refine the design of the bridge piers. This shaft is actually the second test shaft to be constructed. The first one encountered artesian water pressure at 110-ft so the load test program was modified.
According to the article from the StarTribune, the abutments will apparently be founded on driven piles. The pile driving operation is scheduled to be complete some time this week.
Keller posted a very cool drone video of a anchored bored pile wall in an urban area of Lisbon, Portugal. I don’t speak Portuguese, so I can’t read the captions, but the video speaks for […]
An excavator mounted drill rig drilling shafts as part of a project to pass utilities under I-35 near 51st Street toppled over while trying to move in soft, rain soaked soil. The Austin Fire Department was able to extract the operator from the cab and he was taken to a local hospital with minor injuries, a minor miracle. I’m not sure what the purpose of the drilled shafts were for. Since the project was for some kind of utility pipe jacking under the freeway, I’m speculating it was drilling holes for temporary shoring for the jacking pit or something along those lines. I’m sure OSHA will be looking into the incident. Video news story after the break. (Photo from Austin KXAN.com).
Geotechnical software company, Deep Excavation, LLC has just announced a new software product for design of deep foundations. The product page for DeepFND notes that it brings together geotechnical design and structural design of deep […]
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