Assessment of the Automation Algorithm for TDR Bridge - Ohio ...
Assessment of the Automation Algorithm for TDR Bridge - Ohio ...
Assessment of the Automation Algorithm for TDR Bridge - Ohio ...
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sqrt(Ka)/sqrt(kw)<br />
Empirical Equation Procedures <strong>for</strong> Application<br />
in <strong>Bridge</strong> Scour Monitoring<br />
• Dielectric constant<br />
1.0<br />
0.9<br />
0.8<br />
0.7<br />
0.6<br />
0.5<br />
Tap water<br />
250ppm<br />
500ppm<br />
750ppm<br />
Linear Fit <strong>of</strong> All Data<br />
Y = 1.00354 -0.43321 * X<br />
0.0 0.2 0.4 0.6 0.8 1.0<br />
Sand thickness/Total thickness <strong>of</strong> water and sand<br />
√K a,m /√K a,w versus <strong>the</strong><br />
normalized thickness <strong>of</strong><br />
sediment layer<br />
ECb/ECb,w<br />
• Electrical conductivity<br />
1.1<br />
1.0<br />
0.9<br />
0.8<br />
0.7<br />
0.6<br />
0.5<br />
0.4<br />
0.3<br />
Tap water<br />
250ppm<br />
500ppm<br />
750ppm<br />
Linear Fit <strong>of</strong> All Data<br />
Y = 1.02032 -0.66686 * X<br />
0.0 0.2 0.4 0.6 0.8 1.0<br />
Sand thickness/Total thickness <strong>of</strong> water and sand<br />
EC b,m/EC b,w versus <strong>the</strong><br />
normalized thickness <strong>of</strong><br />
sediment layer
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