摘要
针对大坝性态安全诊断中准则层与指标层的不确定性、主观赋权的影响性以及隶属区间的模糊性等问题,提出一种基于模糊云理论的大坝性态安全综合诊断模型。以现役大坝为诊断对象,在已构建大坝性态安全判诊指标体系的基础上,运用改进层次分析法的赋权理论确定权重矩阵,并通过云模型可量化大坝性态诊断中的随机性与模糊性的原理求解隶属度矩阵;再将上述矩阵进行模糊数学运算的结果依据最大隶属度原则综合评判。最后把该模型应用到某实际大坝工程中,得其安全诊断结果与国内学者分析成果基本一致,且与大坝实际的服役情况相吻合,从而验证了该模型的有效性与可行性。
According to the uncertainty,the influence of subjective weighting and the fuzziness of subordinate interval of criterion layer and index layer in dam safety diagnosis,a dam safety synthesis diagnosis model based on Fuzzy cloud theory is put forward. Taking an operating dam as the object of diagnosis,on the basis of the dam safety assessment index system,the weight matrix was determined by using the weighting theory of the improved analytic hierarchy process,the membership matrix is solved by means of the cloud model to quantify the randomness and fuzziness in dam behavior diagnosis. Then,the results of fuzzy mathematical operation of the above matrix are evaluated according to the principle of maximum membership degree. Finally,the model is applied to an actual dam project,the safety diagnosis results of domestic scholars and analysis results are basically the same,and the results are consistent with the actual service conditions,which verifies the feasibility and effectiveness of this model.
作者
黎良辉
杨斌
魏博文
徐兴忠
LI Lianghui, YANG Bin, WEI Bowen, XU Xingzhong(School of Civil Engineering and Architecture, Nanchang University, Nanchang 330031, Chin)
出处
《水资源与水工程学报》
CSCD
2018年第1期209-214,共6页
Journal of Water Resources and Water Engineering
基金
国家自然科学基金项目(51569014
51409139
51669013)
关键词
大坝安全
云模型
改进层次分析法
诊断模型
现役大坝
dam safety
cloud model
improved analytic hierarchy process
diagnostic model
operating dam
