August 31, 2017

Smallbore = Big Results with AFT-Cell

AFT recently achieved a load test record for the Tampa Bay Area. To maximize the side resistance that could be mobilized in a test shaft, we worked with our client Case Atlantic and the geotechnical engineer Terracon to design a test shaft with the optimal diameter to test capacity. The team finally decided on a 3 foot (~1 m) diameter shaft, 94 feet (28.6 m) below ground, socketed into the Weathered Limestone of the area. The test shaft, that included a high pressure AFT-Cell bi-directional jack, achieved an astonishing resistance of 8,000 kips (36MN). That makes it a pound for pound record in the Tampa Bay Area.

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