摘要
为减少大坝运行安全等级评估中不同监测效应量评价指标权重对评估结果客观性的影响,提出基于改进突变级数法的大坝运行安全等级评估方法。该方法将突变级数法不需要确定指标权重的优势应用于大坝运行安全等级评估中,在此基础上,采用熵值修正G2法对常规突变级数法中的指标重要性排序环节进行改进,基于G2法和熵值法的本质从主、客观角度综合考虑评价体系中各指标的相对重要性,使突变级数法中的指标排序更为科学,更好地发挥其优势。将改进的突变级数法应用于某大坝运行安全等级评估中,计算结果表明该方法评估过程简单、逻辑清晰、可靠性高,能切实判断大坝实际的运行安全状态,验证了该方法的有效性和实用性。
To enhance the objectivity of dam operation safety level evaluations and mitigate the influence of weight values of different monitoring effect evaluation indexes,we introduced an improved Catastrophe Progression Method.This method capitalizes on the advantage of not requiring the determination of weight values for index evaluation in assessing dam operation safety level.Additionally,we employed the entropy correction G2 method to enhance the index importance ranking process within the conventional Catastrophe Progression Method.By comprehensively considering the relative importance of each index from both subjective and objective perspectives,leveraging the essence of the G2 method and entropy method,this approach ensures a more scientifically grounded index ranking within the Catastrophe Progression Method framework,allowing it to best leverage its advantages.To validate the proposed method,it is applied to assess the safety level of a dam.The calculation results demonstrate that the method is simple,logical,and reliable,effectively determining the actual operational safety status of the dam.This outcome validates the effectiveness and practicality of the proposed method.
作者
魏博文
周凌凯
徐富刚
WEI Bo-wen;ZHOU Ling-kai;XU Fu-gang(School of Engineering and Construction,Nanchang University,Nanchang 330031,China)
出处
《长江科学院院报》
CSCD
北大核心
2023年第11期168-174,共7页
Journal of Changjiang River Scientific Research Institute
基金
国家自然科学基金项目(51869011,52169025)
江西省杰出青年自然科学基金项目(20192ACB21022)
中国博士后基金项目(2019M652281)
江西省自然科学基金项目(20192BAB216040)。
关键词
大坝运行安全
熵值法
G2法
突变级数法
监测资料
模糊综合诊断
dam operation safety
entropy method
G2 method
Catastrophe progression method
monitoring data
fuzzy comprehensive diagnosis
