Comprehensive evaluation method of seepage safety based on FDA and extension theory

Abstract

The invention belongs to the field of dam seepage safety evaluation in water conservancy engineering, provides a solution to both multiple attributes and the incompatible problem, can also solve the problems of different time intervals, missing data, mass data, etc. and realizes the real-time, dynamic and continuous dam seepage safety comprehensive evaluation method. The seepage safety comprehensive evaluation method based on the FDA and the extension theory of the invention comprises the following steps: (1) establishing a seepage safety comprehensive evaluation index system; (2) obtaining and normalizing the index data; (3) index data functionalization; (4) data acquisition and normalization of derivative indicators (5) establishment of FEE Matter Element Model for Comprehensive Evaluation of Seepage Safety; (6) calculating the correlation function of FEE single index; (7) determining the weight of each index; (8) calculating the score of single index; (9) establishing the comprehensive evaluation index of seepage safety. The invention is mainly applied to the safety evaluation of dam seepage.

Description

technical field [0001] The invention belongs to the field of dam seepage safety evaluation in water conservancy projects, and in particular relates to a comprehensive evaluation method for seepage safety based on FDA and extension theory. Background technique [0002] There are more than 85,000 reservoirs in my country. After decades of operation, 40% of the reservoirs are in danger. Most of the damage to the serious reservoir dams is caused by seepage. Safety monitoring is one of the necessary technical means to ensure dam safety, and seepage monitoring is a key task of dam safety monitoring, which must be paid enough attention to. Groundwater seepage is concealed and destructive. It is necessary to continuously observe and analyze physical quantities such as water level, seepage pressure, seepage volume, and temperature through seepage monitoring instruments to evaluate the seepage safety of the dam in time and conduct risk assessment on the dam to guide the safety of the ...

AI Technical Summary

Problems solved by technology

[0004] Although these seepage safety comprehensive evaluation methods have achieved many meaningful results, there are still some limitations:

[0005] 1. The existing seepage safety evaluation model still uses static data (that is, the data at a certain moment or the average value of the data within a period of time) as the basis of the evaluation, and the obtained evaluation results are discrete, which cannot indicate the seepage within a certain period of time. security trends;

[0006] 2. The existing seepage safety evaluation model cannot fully mine the dynamic information of monitoring data, and cannot reflect the dynamic changes of indicators and the correlation between indicators, while the rate of change of indicators and the correlation between some indicators are exactly what the seepage safety evaluation needs. caring;

[0007] 3. When the monitoring data of a certain index is missing, the evaluation results cannot be obtained by applying the existing seepage safety evaluation model;

[0008] In addition, with the advancement of data collection technology and the rapid development of Internet technology, people can easily obtain a large amount of continuous seepage monitoring data. How to efficiently process these complex and continuous data poses challenges to traditional statistical methods

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