2018 – Dynamic analysis and design of stilling basin slabs at Fairbairn Dam

Bob Wark, Peter Foster and David Ryan

This paper describes taking the data from the transducer recording of dynamic fluctuations at 300 Hz in the physical hydraulic model of the stilling basin of Fairbairn dam and analysing the response of the proposed design solution to these loads. The analysis not only looked at the direct time history loading, but reviewed the response of the anchoring system to the inertial and damping loads. A further extension of the analysis allowing for the stiffness of water has come up with some findings that verify what has intuitively been believed about the design of spillway stilling basin slabs.

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