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Method for drawing up deformation safety monitoring index of concrete dam of hydropower station

A technology for concrete dam and safety monitoring, applied in complex mathematical operations, instruments, measuring devices, etc., can solve the problems of cumbersome process and huge amount of calculation.

Pending Publication Date: 2021-05-25
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to make up for the defects of huge amount of calculation and cumbersome process when formulating existing dam safety monitoring indicators, and to provide a method for formulating deformation safety monitoring indicators of concrete dams in hydropower stations

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  • Method for drawing up deformation safety monitoring index of concrete dam of hydropower station
  • Method for drawing up deformation safety monitoring index of concrete dam of hydropower station
  • Method for drawing up deformation safety monitoring index of concrete dam of hydropower station

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Embodiment Construction

[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0049] The basic idea of ​​the present invention is: select historical data that needs to be analyzed and calculated, and preliminarily remove gross errors, such as figure 1 and figure 2 As shown, on this basis, the gross error is further removed by the "3σ" criterion, and the maximum and minimum values ​​of each year are counted. The eigenvalues ​​of extreme value samples were counted and calculated, and the distribution of historical extreme values ​​was tested. Finally, the deformation monitoring indicators of typical dam sections were calculated by the small probability method, and the monitoring indicators were comprehensively formulated in combination with historical extreme values.

[0050] refer to Figure 1 to Figure 3 , in conjunction with the embodiments of Tables 1 to 3, a method for drawing up the deformation safety monitoring ...

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Abstract

The invention discloses a method for drawing up a deformation safety monitoring index of a concrete dam of a hydropower station. According to the method, historical data of deformation monitoring points of some typical dam sections are sorted, gross error and abnormal data are removed, then feature values are counted and calculated respectively, distribution inspection is carried out on historical extreme values, finally, deformation monitoring indexes of the typical dam sections are calculated through a small probability method, and comprehensive drawing-up is carried out on the monitoring indexes in combination with the historical extreme values. The method has guiding significance for calculating the monitoring indexes of the dam body deformation monitoring data, and can provide a basis for dam operation management and state evaluation.

Description

technical field [0001] The invention belongs to the field of monitoring data analysis of dams of hydropower stations, and particularly relates to a method for formulating deformation safety monitoring indicators of concrete dams of hydropower stations. Background technique [0002] The dam safety monitoring index is the boundary value between the normal state and the abnormal state specified for the effect of the dam in service. It has important guiding significance for dam operation management and state assessment to formulate indicators for monitoring data during the operation period of dams and reasonably determine monitoring indicators or early warning values. [0003] At present, the main methods for formulating dam safety monitoring indicators are: 1) Confidence interval estimation method based on statistical models. This method is highly professional and requires professionals to compile professional software for calculation and analysis, which is difficult for ordina...

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Application Information

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IPC IPC(8): G01B21/32G06F17/18
CPCG01B21/32G06F17/18
Inventor 汪俊波程帅章春香南江牛瑞杰裴海林陈少华彭金宁李志华夏绍云刘诚威俞年年
Owner XIAN THERMAL POWER RES INST CO LTD