A definition for a working value of yield stress for sediment deposits with a cohesive nature is provided through the application of rheometrical techniques. An applied stress technique was utilised to examine the yield characteristics of sixty-one sediment samples obtained from a combined interceptor sewer. Yield strength values obtained were related to the solid/liquid phase relationships for these sediment samples. It is suggested that the yield strength presented can provide a suitable definition for material available for erosion from the sediment bed.
Rheological Measurement of the Yield Strength of Combined Sewer Sediment Deposits
D. J. J. Wotherspoon, R. M. Ashley; Rheological Measurement of the Yield Strength of Combined Sewer Sediment Deposits. Water Sci Technol 1 April 1992; 25 (8): 165–169. doi: https://doi.org/10.2166/wst.1992.0190
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