Model Study of Center Hill Fuse Plug Spillway

by Bobby P. Fletcher, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,
Paul A. Gilbert, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract: Model tests of a fuseplug spillway mounted on the fixed crest of an embankment dam were conducted to develop a satisfactory design that would fail in a orderly fashion at a prescribed rate. Model materials were processed and manufactured to simulate characteristics of the prototype soil so that behavior in the model would simulate behavior in the prototype. The impervious core in the model consisted of prototype clay taken from the embankment site. Three physical models were used to screen and investigate various designs and to determine if scale effects would significantly influence hydraulic performance of the models. Test results indicated that scale effects were insignificant influence hydraulic performance of the models. Test results indicated that scale effects were insignificant. A fuseplug design was developed in which the 500-ft-long spillway would fail at a constant rate in approximately 29 min.

Subject Headings: Hydraulic models | Model tests | Physical models | Hydraulic design | Scale models | Spillways | Soil properties | Scale effect

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