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原文传递 Calibration of Scour Models using Advanced Sonar Technology for Bridge Safety.

题名：	Calibration of Scour Models using Advanced Sonar Technology for Bridge Safety.
作者：	BAXTER, C.; CHEN, C. S.; MILLER, J.; POTTY, G.
关键词：	BRIDGES; HIGHWAY SAFETY; SCOUR(EROSION); SONAR
摘要：	Riverbed scour near bridge piers is a widespread problem which causes scour holes to develop, piers to fall and, ultimately, bridges to collapse. Measurement of riverbed scour and deposition near bridge piers are essential for the proper maintenance and safety of bridges. Scour processes have been extensively studied and mathematical models have been developed from physical models and field data. But scour depths predicted using these models could vary substantially when these models are applied outside the range of conditions for which they have been developed. Field measurements of scour depths are needed to put practical constraints and limits on these models. We conducted these field measurements using a number of underwater acoustic instruments and techniques. These instruments include depth sounder, side scan sonar, and subbottom profiler. These measurements were conducted aboard the Department of Ocean Engineering research vessel R/V CT-1 and another research vessel- R/V Quest. This will also then serve as a rapid assessment tool for scour and has the potential to compliment and/or replace inspection by divers.
报告类型：	科技报告