Pile Test Services
A bi-directional static load test (BDSLT) is a method used to internally load a deep foundation element from specific points along its embedded length. The load is applied using a jack assembly, which includes one or more YJACK360 or OJACK360 cells positioned between upper and lower bearing plates. This setup allows the jack to exert an upward force against the shaft resistance above the jack assembly and a downward force against the combined shaft resistance below the assembly and the toe or base resistance. The deep foundation element is equipped with instruments to measure shaft and toe movements, as well as soil resistance to the applied load. YJACK360 and OJACK360 cells are suitable for installation in drilled shafts, augercast piles, drilled displacement piles, slurry wall panels, and barrettes.
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