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Dam mechanical parameter random inversion method and system based on displacement field monitoring data

A technology of monitoring data and stochastic inversion, which is applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., and can solve the problems of identification and elimination without observation errors

Active Publication Date: 2020-09-22
HOHAI UNIV
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Problems solved by technology

The uncertainty of dam monitoring information is mainly composed of the perturbation of the response caused by the mechanical parameters of the material itself and the observation error. However, the current correlation analysis does not identify and eliminate the observation error

Method used

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  • Dam mechanical parameter random inversion method and system based on displacement field monitoring data
  • Dam mechanical parameter random inversion method and system based on displacement field monitoring data
  • Dam mechanical parameter random inversion method and system based on displacement field monitoring data

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Embodiment Construction

[0099] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0100] Such as figure 1 As shown, this embodiment provides a method for random inversion of mechanical parameters of a dam based on displacement field monitoring data, including the following steps:

[0101] Obtain the monitoring data of each measuring point of the dam, and preprocess the monitoring data;

[0102] According to the preprocessed monitoring data, a statistical model of dam deformation at each measuring point is established;

[0103] Using the statistical model to sepa...

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Abstract

The invention discloses a dam mechanics parameter random inversion method and system based on displacement field monitoring data. According to the random inversion method, by combining the displacement monitoring data of multiple measuring points in space, parameter random inversion criteria under the first-order perturbation meaning and the second-order perturbation meaning are given, and real displacement and observation errors of a dam can be separated; the random inversion system comprises a database module, a structure information module, a random inversion module and an information display module; the database module is used for collecting and summarizing dam basic information, geographic space information and monitoring information; the structure information module is used for storing geometric model information and finite element model information of engineering; the random inversion module is used for identifying the mean value and the standard deviation of the dam mechanicalparameters; and the information display module has an engineering model display function, a monitoring information browsing function and an inversion evaluation result output function. According to the invention, the real operation state and the observation error of the dam can be identified.

Description

technical field [0001] The invention belongs to the field of dam safety, in particular to a random inversion method and system of dam mechanical parameters based on displacement field monitoring data. Background technique [0002] At present, a large number of high dam projects have been built in the world, such as the Jinping I concrete arch dam in China, the Three Gorges concrete gravity dam, the Grand Dixence gravity dam in Switzerland, and the Hoover gravity arch dam in the United States. These high dam projects play a vital role in flood control, power generation, shipping, irrigation and water supply, and have produced very significant social and economic benefits. While generating huge engineering benefits, the working behavior of the dam will also change with the increase of service time, and some hidden dangers will appear. Problems such as dam foundation instability, dam body cracking, and seepage damage occurred in some projects, which brought disastrous disaster...

Claims

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Application Information

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IPC IPC(8): G06F30/13G06F30/20G06F119/14
CPCG06F30/20G06F30/13G06F2119/14
Inventor 林潮宁李同春高林钢陈斯煜齐慧君刘晓青盛韬桢丁园周旻哲
Owner HOHAI UNIV
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