Entropy weight-set pair analysis (SPA) for dam leakage detection

Q3 Earth and Planetary Sciences
Tao Wang, Jiansheng Chen, Tingting Wang
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引用次数: 1

Abstract

The dam seepage flow contains many kinds of materials, forming the information flow, the information entropy of which can be used to determine the nature of the flow field; and the water chemistry and environmental isotope detection methods have been widely applied. Based on the knowledge of information entropy and set pair analysis, a new method consisting of water chemistry and environmental isotope detection, entropy weight-set pair analysis model, is introduced to ascertain the dam concentration leakage channels. Firstly, PH, conductance, Cl, δD and δO are chosen as five detection indexes, and the connection degree of each index value to the classification standard is calculated. Then, the weight of each index is determined by using the information entropy weight method based on the principle of the maximum entropy. After that, the comprehensive connection degree of all samples from the drilling is calculated, and thus all the samples are classified so as to determine the resource of water. Finally, this new method is applied to detect the dam leakage channels of one south reservoir and the results are tested and improved by the method of horizontal velocity and temperature detection. It is concluded that the results of the entropy weight-set pair analysis model match those of the horizontal velocity and temperature detection very well.
熵权集对分析(SPA)用于大坝渗漏检测
大坝渗流中含有多种物质,形成信息流,信息流的信息熵可以用来确定流场的性质;水化学和环境同位素检测方法得到了广泛的应用。基于信息熵和集对分析的知识,提出了一种由水化学和环境同位素检测相结合的新方法——熵权集对分析模型来确定大坝浓度泄漏通道。首先选取PH、电导、Cl、δD和δO作为5个检测指标,计算各指标值与分类标准的关联度。然后,采用基于最大熵原则的信息熵权法确定各指标的权重;然后,计算所有钻孔样品的综合连接度,从而对所有样品进行分类,从而确定水资源。最后,将该方法应用于南方某水库大坝渗漏通道的检测,并采用水平速度和温度检测方法对检测结果进行了验证和改进。结果表明,熵权集对分析模型的结果与水平速度和温度检测结果吻合较好。
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来源期刊
岩土工程学报
岩土工程学报 Earth and Planetary Sciences-Geotechnical Engineering and Engineering Geology
CiteScore
2.50
自引率
0.00%
发文量
11264
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