Dam overtopping risk assessment considering inspection program
| العنوان: | Dam overtopping risk assessment considering inspection program |
|---|---|
| المؤلفون: | Keh-Chia Yeh, Jian De Wu, Yung Chia Hsu, Jan Tai Kuo, Yeou-Koung Tung |
| المصدر: | Stochastic Environmental Research and Risk Assessment. 22:303-313 |
| بيانات النشر: | Springer Science and Business Media LLC, 2007. |
| سنة النشر: | 2007 |
| مصطلحات موضوعية: | Fault tree analysis, Schedule, Spillway, Environmental Engineering, Computer science, Dam break, Environmental Chemistry, Interval (mathematics), Safety, Risk, Reliability and Quality, Risk assessment, Civil engineering, General Environmental Science, Water Science and Technology |
| الوصف: | Safety inspection of large dams in Taiwan is conducted every 5 years. The practice does not take into consideration uncertainty of dam conditions. The goal of this study is to determine the optimal dam inspection interval under the consideration of overtopping risk incorporating uncertainty gate availability. In earlier studies, assessment of overtopping risk only considered the uncertainties in reservoir properties and natural randomness of hydrologic events without giving much thought to the availability of spillway gates. As a result, the overtopping risk could be underestimated. In this study, an innovative concept is proposed to evaluate dam overtopping by taking into account spillway gate availability. The framework consists of three parts: (1) evaluation of conditional overtopping risk for different numbers of malfunctioning spillway gates; (2) evaluation of spillway gate availability; and (3) dam inspection scheduling. Furthermore, considerations are given to overtopping risk, inspection cost, and dam break cost for determining the optimal inspection schedule. The methodology is applied to the Shihmen Reservoir in Taiwan and to evaluate its time-dependent overtopping risk. Results show that overtopping risk considering the availability of the spillway gates is higher than the one without considering the availability of the spillway gates. |
| تدمد: | 1436-3259 1436-3240 |
| DOI: | 10.1007/s00477-007-0116-3 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::69a945d756983e2ee78bfeb0e26bff08 https://doi.org/10.1007/s00477-007-0116-3 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........69a945d756983e2ee78bfeb0e26bff08 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14363259 14363240 |
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| DOI: | 10.1007/s00477-007-0116-3 |