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with Time-Domain Reflectometry >

Bridge Scour Detection/Monitoring
with Time-Domain Reflectometry

Description

A time domain reflectometry (TDR)-based system has been developed for civil engineers to use for continuous real-time, dynamic detection and measurement of bridge scour, a hazardous condition that occurs during times of rapid river flow and especially under ice conditions. It is caused by currents transporting sediments away from bridge piers, buried utilities, and similar structures.

 

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Graphic of the sediment probe used in the TDR bridge scour detection and monitoring system.  (click to view larger image)

Embedded in riverbed sediment, the probe relays information on bridge scour.

 A plot of signals from TDR monitoring system show changes in riverbed elevation over time.

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Page last updated: 17 November 2008

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