Study on Comprehensive Evaluation Model of Seepage Safety Based on DSR-Extension Cloud

被引：2
|
作者：
Wang X. [1 ]
Dai L. [1 ]
Lü P. [1 ]
Wang C. [1 ]
Cheng Z. [1 ]
机构：
[1] State Key Laboratory of Civil Engineering Simulation and Safety, Tianjin University, Tianjin
来源：
Tianjin Daxue Xuebao (Ziran Kexue yu Gongcheng Jishu Ban)/Journal of Tianjin University Science and Technology | 2019年 / 52卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Correlation; DSR model; Extension cloud model; Seepage safety evaluation; Uncertainty;
D O I：
10.11784/tdxbz201802022
中图分类号：
学科分类号：
摘要：
The seepage safety of dam is the key to evaluate the safety and stability of dam.Most of the existed researches evaluate the seepage safety according to the seepage monitoring data, ignoring the effect of environment factor and the correlation between the indices.At the same time the uncertainty of classification and data acquisition in the process of seepage evaluation is not considered.In this study, the DSR index system was established for seepage safety evaluation, and a seepage safety evaluation model of concrete gravity dam considering uncertainty was put forward.This model includes the following parts. ①The extension cloud model is used to deal with the fuzziness of the boundary of seepage safety evaluation grade and the randomness of parameters in the calculation process.This model can not only get satisfactory comprehensive evaluation results, but also give credibility information of evaluation results.The algorithm is simple, adaptable and easy to program. ②The DSR index model is used to establish the seepage safety evaluation index system which is matched with the requirements of concrete gravity dam and with a variety of performance indicators.The environmental factors influencing the seepage safety are comprehensively considered. ③The subjective and objective comprehensive weighting method combined with influence matrix and correlation coefficient weighting method is adopted to reduce the influence of repeated calculation of indices in the evaluation process.The model is applied to evaluate the seepage safety of a concrete gravity dam and the effectiveness and superiority of the method is proved compared with other methods. © 2019, Editorial Board of Journal of Tianjin University(Science and Technology). All right reserved.
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页码：52 / 61
页数：9
相关论文
共 23 条
  • [1] Wu Z., Disease Detection and Health Diagnosis of Major Hydraulic Concrete Structures, (2005)
  • [2] Sjodahl P., Dahlin T., Johansson S., Embankment dam seepage evaluation from resistivity monitoring data, Near Surface Geophysics, 7, 5-6, pp. 463-474, (2009)
  • [3] Uromeihy A., Barzegari G., Evaluation and treatment of seepage problems at Chapar-Abad Dam, Iran, Engineering Geology, 91, 2, pp. 219-228, (2007)
  • [4] He J., Liao W., Shi Y., Comprehensive assessment method of dam safety based on extenics theory, Engineering Journal of Wuhan University, 41, 2, pp. 42-45, (2008)
  • [5] Cao X., Zhang J., Lei H., Research on comprehensive evaluation method of dam safety based on vector similarity, Yangtze River, 40, 5, pp. 84-86, (2009)
  • [6] Fu X., Zheng D., Su G., Application of improved matter element extension evaluation method to dam seepage assessment, Journal of China Three Gorges University: Natural Sciences, 37, 2, pp. 26-29, (2015)
  • [7] Mei Y., Zhong Y., Fuzzy extension evaluation model of dam seepage behavior based on entropy weight, Water Resources and Power, 29, 8, pp. 58-61, (2011)
  • [8] Su H., Sun X., Comprehensive evaluation and tendency prediction model for concrete dam seepage behavior, Yangtze River, 44, 22, pp. 95-99, (2013)
  • [9] Han L., Zhang H., Li S., The cloud dynamic evaluation method of seepage safety of earth and rockfill dam, Journal of North China Institute of Water Conservancy and Hydroelectric Power: Nature Science Edition, 33, 4, pp. 1-4, (2012)
  • [10] Wang X., Study on the Evaluation Index System and the Management of City Environment: in Dadukou District as an Example, (2012)
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