完整後設資料紀錄
DC 欄位語言
dc.contributor.authorWang, Kaien_US
dc.contributor.authorLin, Chih-Pingen_US
dc.date.accessioned2020-10-05T02:01:05Z-
dc.date.available2020-10-05T02:01:05Z-
dc.date.issued1970-01-01en_US
dc.identifier.issn1475-9217en_US
dc.identifier.urihttp://dx.doi.org/10.1177/1475921720944587en_US
dc.identifier.urihttp://hdl.handle.net/11536/155127-
dc.description.abstractA real-time and durable system for scour process monitoring with sufficient spatial precision is in pressing need for bridge safety management. In light of this, an innovative bundled time domain reflectometry sensing cable was recently proposed to enhance the time domain reflectometry technique for scour monitoring. However, current development only dealt with the construction of bundled sensing cable and the corresponding new data reduction method. Before it can be put into practical use, issues related to the effect of hydrological conditions, long-distance measurement, and actual field implementation are yet to be investigated. This study used both numerical simulations and laboratory experiments to examine the time domain reflectometry signals in response to both scour and deposition in different water-level conditions. As a result, the first guideline of waveform classification and interpretation is newly proposed to validly determine scour depth under various field conditions. Since field measurements often come with significant signal attenuation from resistance loss of long cable and dielectric and conductive loss in the sensing section, numerical simulations and a series of full-scale experiments were also conducted to assess the time domain reflectometry scour measurement range. The maximum measurement range of the latest time domain reflectometry scour sensing cable was found to be about 6 m. Within this range, the maximum error of scour estimation is within 0.2 m. Considering the new findings, a field time domain reflectometry scour monitoring system using the bundled time domain reflectometry sensing cable was designed accordingly and implemented at a bridge for the first time. The monitoring system successfully captured the scour process during a storm event and revealed some practical issues for future improvement as well.en_US
dc.language.isoen_USen_US
dc.subjectBridge scouren_US
dc.subjectscour monitoringen_US
dc.subjecttime domain reflectometry (TDR)en_US
dc.titleApplicability and limitations of time domain reflectometry bridge scour monitoring system in general field conditionsen_US
dc.typeArticleen_US
dc.identifier.doi10.1177/1475921720944587en_US
dc.identifier.journalSTRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNALen_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department土木工程學系zh_TW
dc.contributor.departmentDepartment of Civil Engineeringen_US
dc.identifier.wosnumberWOS:000559287500001en_US
dc.citation.woscount0en_US
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