|Water Science and Engineering 2018, 11(1) 81-87 DOI: https://doi.org/10.1016/j.wse.2017.07.001 ISSN: 1674-2370 CN: 32-1785/TV|
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A quantitative model for danger degree evaluation of staged operation of earth dam reservoir in flood season and its application
Chong-xun Mo a,b,c, Gui-yan Mo a,b,c,*, Qing Yang a,b,c, Yu-li Ruan a,b,c, Qing-ling Jiang d, Ju-liang Jin e
a College of Civil and Architectural Engineering, Guangxi University, Nanning 530004, China b Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Guangxi University, Nanning 530004, China c Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning 530004, China d Changjiang Institute of Technology, Wuhan 430212, China e School of Civil Engineering, Hefei University of Technology, Hefei 230009, China
Based on the natural disaster risk evaluation mode, a quantitative danger degree evaluation model was developed to evaluate the danger degree of earth dam reservoir staged operation in the flood season. A formula for the overtopping risk rate of the earth dam reservoir staged operation was established, with consideration of the joint effect of flood and wind waves in the flood sub-seasons with the Monte Carlo method, and the integrated overtopping risk rate for the whole flood season was obtained via the total probability approach. A composite normalized function was used to transform the dam overtopping risk rate into the danger degree, on a scale of 0 to 1. Danger degree gradating criteria were divided by four significant characteristic values of the dam overtopping rate, and corresponding guidelines for danger evaluation are explained in detail in this paper. Examples indicated that the dam overtopping danger degree of the Chengbihe Reservoir in China was 0.33 to 0.57, within the range of moderate danger level, and the flood-limiting water level (FLWL) can be adjusted to 185.00 m for the early and main flood seasons, and 185.00 m to 187.50 m for the late flood season. The proposed quantitative model offers a theoretical basis for determination of the value of the danger degree of an earth dam reservoir under normal operation as well as the optimal scheduling scheme for the reservoir in each stage of the flood season.
|Keywords： Reservoir staged operation in flood season Earth dam Danger degree Quantitative evaluation|
|Received 2017-01-20 Revised 2017-07-19 Online: 2018-01-31|
This work was supported by the National Natural Science Foundation of China (Grants No. 51569003 and 51579059), the Natural Science Foundation of Guangxi Province (Grant No. 2017GXNSFAA198361), and the Innovation Project of Guangxi Graduate Education (Grant No. YCSW2017052).
|Corresponding Authors: email@example.com (Gui-yan Mo)|
|About author: firstname.lastname@example.org (Gui-yan Mo)|
Administrative Bureau of the Chengbihe Reservoir (ABCR), 1998. Introduction for the Chengbihe Reservoir. ABCR, Baise (in Chinese).
Australian National Committee on Large Dams (ANCOLD), 1994. Guidelines on Risk Assessment. ANCOLD, Sydney.
Australian National Committee on Large Dams (ANCOLD), 2003. Guidelines on Risk Assessment. ANCOLD, Sydney.
Eum, H.I., Simonovic, S.P., 2010. Integrated reservoir management system for adaptation to climate change: The Nakdong River Basin in Korea. Water Resources Management 24(13), 3397-3417. https://doi.org/10.1007/s11269-010-9612-1.
Feng, P, Chen, G.F., Lu, Y.L., Ji, E.F., 1995. Risk analysis for impoundment level of Gangnan Reservoir. Journal of Tianjin University 28(4), 572-576 (In Chinese).
Han, K.Y., Kim, S.H., Bae, D.H., 2001. Stochastic water quality analysis using reliability method. Journal of the American Water Resources Association 37(3), 695–708. https://doi.org/10.1111/j.1752-1688.2001.tb05504.x.
Hartford, D.N.D., Baecher, G.B., 2004. Risk and Uncertainty in Dam Safety. Thomas Telford Publishing, London.
Hege, K., 1997. Dam safety evaluation and risk analysis. Express Water Resources & Hydropower Information 18(9), 1-6.
International Commission on Large Dams (ICOLD), 1973. Lessons from Dam Incidents, reduced edition. ICOLD, Paris.
Jiang, S.H, Fan, Z.W., 2008. Earth-rockfill dam safety classification and risk rate assessment on flood control. Journal of Hydraulic Engineering 39(1), 35–40. https://doi.org/10.13243/j.cnki .slxb.2008.01.008 (in Chinese).
Jin, Y., 2008. Study on the Analysis Approach for the Dangerous Situation of Dam Breach. M.E. Dissertation, Hohai University, Nanjing (in Chinese).
Levy, J.K., 2005. Multiple criteria decision making and decision support systems for flood risk management. Stochastic Environmental Research and Risk Assessment 19(6), 438-447. https://doi.org/10.1007/s00477-005-0009-2.
Li., L., 2006. Dam Risk Evaluation and Risk Management. China Water Conservancy and Hydropower Press, Beijing (in Chinese).
Lou, J. K., 2000. Dam safety risk management of Canada BC Hydro company. Dam and Safety, 14(4), 7-11 (in Chinese).
Ma, R.Y., 2004. Risk Analysis Methods and Applications of Earth-rock Dam. Science Press, Beijing (in Chinese).
Mo, C.X., 2014. Reservoir Flood Stage Earth-rock Dam Project Scheduling Key Technology and Application. Science Press, Beijing (in Chinese).
Mo, C.X., Liu, F.G., Yu, M., Ma, R.Y., Sun, G.K., 2008. Risk analysis for earth dam overtopping. Water Science and Engineering, 1(2), 76–87. https//doi.org/10.3882/j.issn.1674-2370.2008.02.008.
National Research Council (NRC), 1983. Safety of Existing Dams: Evaluation and Improvement. The National Academy Press, Washington D.C.
Office of the United Nations Disaster Relief Co-ordinator (UNDRO), 1991. Mitigating Natural Disasters: Phenomena, Effects and Options: A Manual for Policy Makers and Planners. United Nations, New York.
Rettemeier, K., Falkenhagen, B., Köngeter, J., 2000. Risk assessment-new trends in Germany. Proceedings of the 21th International Congress on Large Dams. Beijing, pp. 625–641.
Ru, N.H., Niu, Y.G., 2001. Dam Accident and Safety of Earth and Rock-fill Dam. China Water Conservancy and Hydropower Press, Beijing (In Chinese).
Seed, H.B., Duncan, J.M., 1987. The failure of Teton Dam. Engineering Geology 24(1-4), 173-205. https://doi.org/ 10.1016/0013-7952(87)90060-3.
Tang, X.H., Li, H.A., Duan, L.X., 2011. Generalizations and applications of the formula of total probability. Study in College Mathematics 14(4), 51-52 (in Chinese).
Tung, Y.K., 1990. Evaluating the probability of violating dissolved oxygen standard. Ecological Modelling 51(3-4), 193–204. https//doi.org/10.1016/0304-3800(90)90064-n.
Xiao, Y., 2004. Criteria and Risk Analysis for Dam Hydrological Safety. M.C. Dissertation, Wuhan University, Wuhan (in Chinese).
Yun, R., Singh, V.P., 2008. Multiple duration limited water level and dynamic limited water level for flood control, with implications on water supply. Journal of Hydrology 354(1-4), 160-170. https//doi.org/10.1016/j.jhydrol.2008.03.003.
Zhu, H. L., Chen, Z. H., Zhou, Z. H., 2003. Risk analysis on dam overtopping of Tai-he Reservoir. Dam and Safety, 17(4), 11–14. (In in Chinese).
Zhu, Y.S., 2001. Flood defense based on risk analysis. Journal of Hohai University (Natural Science) 29(4), 15-20 (in Chinese).
|1．Mo Chongxun*1, Liu Fanggui1, Yu Mei2, Ma Rongyong1, Sun Guikai1.Risk analysis for earth dam overtopping[J]. Water Science and Engineering, 2008,1(2): 76-87|
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