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In Situ Measurement of the Scour Potential of Non-Cohesive Sediments (ISEP)
A vertical probe (VP) employing a water jet has been developed for assessing scour potential and scour rates of sediments typically found at the bottom of rivers or streams. The probe termed "In situ Scour Evaluation Probe," or ISEP, is based on the idea that analysis of the probe penetration rate into the soil may be correlated with scour rate and erosion potential. The method proposed herein aims at measuring the potential scour rate in situ and as a function of depth. Results on the test sand with mean particle diameter (D50) ∼0.3 mm suggest that the rate of advancement of the probe can be empirically correlated to the vertical velocity of the water at the tip of the probe raised to a positive exponent. For the saturated sand used in testing, the exponent appears to be 1.4. The rate of probe advancement seems to also vary with moisture content. Thus far, scour rates determined with this proposed method are found to be in reasonable agreement with scour rates published for similar sand type.
In Situ Measurement of the Scour Potential of Non-Cohesive Sediments (ISEP)
A vertical probe (VP) employing a water jet has been developed for assessing scour potential and scour rates of sediments typically found at the bottom of rivers or streams. The probe termed "In situ Scour Evaluation Probe," or ISEP, is based on the idea that analysis of the probe penetration rate into the soil may be correlated with scour rate and erosion potential. The method proposed herein aims at measuring the potential scour rate in situ and as a function of depth. Results on the test sand with mean particle diameter (D50) ∼0.3 mm suggest that the rate of advancement of the probe can be empirically correlated to the vertical velocity of the water at the tip of the probe raised to a positive exponent. For the saturated sand used in testing, the exponent appears to be 1.4. The rate of probe advancement seems to also vary with moisture content. Thus far, scour rates determined with this proposed method are found to be in reasonable agreement with scour rates published for similar sand type.
In Situ Measurement of the Scour Potential of Non-Cohesive Sediments (ISEP)
Caruso, Cary (author) / Gabr, Mohammed (author)
International Conference on Scour and Erosion (ICSE-5) 2010 ; 2010 ; San Francisco, California, United States
Scour and Erosion ; 115-124
2010-10-29
Conference paper
Electronic Resource
English
In Situ Measurement of the Scour Potential of Non-Cohesive Sediments (ISEP)
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