详情

原文传递 REMOTE MONITORING OF BRIDGE SCOUR USING ECHO SOUNDING TECHNOLOGY.

题名：	REMOTE MONITORING OF BRIDGE SCOUR USING ECHO SOUNDING TECHNOLOGY.
作者：	Lasa-IR; Hayes-GH; Parker-ET
关键词：	Bridges-; Data-collection; Data-storage; Downloading-; Echo-sounding-technology; Equipment-; Florida-; Installation-; Monitoring-; Performance-; Remote-sensing; Scour-
摘要：	Bridge scour is one of the leading causes of bridge failure in the United States. To prevent this type of failure, it is necessary to closely monitor the scour and the mechanisms which contribute to its development. To assist government agencies responsible for the safe operation of these bridges, a scour monitoring device using echo sounding technology has been developed. Based on previous research, echo sounding was identified as a dependable method to measure scour. The newly developed unit incorporates the capability of multiple depth sensors, water temperature sensors, tide elevation gauges, and water velocity sensors. The unit may be programmed to obtain measurements at any interval and is able to store several months of collected data. Downloading of stored information is possible through a direct connection to a portable PC or via telephone (or cellular) communication. The data are stored in standard delimited format, which can be imported to any standard spreadsheet software for analysis. A prototype unit was initially installed on one pier of a bridge identified by the Florida Department of Transportation as scour critical. An additional set of sensors was later installed to a second pier and connected to the unit. Upon establishing communication with the unit, the user may select each pier (set of sensors) separately for programming and downloading information. This paper describes the equipment, installation and the initial performance of the scour-monitoring unit.
总页数：	Conference Title: Eighth International Bridge Management Conference. Location: Denver, Colorado. Sponsored by: Transportation Research Board Committee on Bridge Maintenance and Management (A3C06). Held: 19990426-19990428. Transportation Research Circular
报告类型：	科技报告