Analysis method of valley amplitude deformation of high arch dam based on lasso and random forest

A random forest and high arch dam technology, applied in computer components, data processing applications, instruments, etc., to achieve the effect of expanding the acquisition range and high reliability

Active Publication Date: 2022-03-29
HOHAI UNIV
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Problems solved by technology

[0004] Purpose of the invention: the purpose of the present invention is to provide a high arch dam valley width deformation analysis method based on lasso and random forest, to solve how to consider the potential influencing factors of valley width deformation and how to adjust the valley width according to the importance of each influencing factor Deformation for analysis and control

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  • Analysis method of valley amplitude deformation of high arch dam based on lasso and random forest
  • Analysis method of valley amplitude deformation of high arch dam based on lasso and random forest
  • Analysis method of valley amplitude deformation of high arch dam based on lasso and random forest

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[0022] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0023] The present invention provides a kind of high arch dam valley width deformation analysis method based on lasso and random forest, such as figure 1 shown, including the following steps:

[0024] S101: Obtain relevant monitoring data at the dam site, and establish a data analysis system. In the data analysis system, the factors affecting the valley width are taken as independent variables, and the valley width deformation is taken as the dependent variable. Relevant monitoring data include reservoir water level rise and fall rate, reservoir water level elevation, cumulative value of valley amplitude deformation of each survey line, temperature in dam area and rainfall in dam area.

[0025] In this embodiment, including reservoir water level rise and fall rate, reservoir water level elevation, and the cumulative value of the valley amplitude deformation ...

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Abstract

The invention discloses a method for analyzing valley width deformation of high arch dams based on lasso and random forest, which includes: obtaining relevant monitoring data at the site of the dam area, establishing a data analysis system; preprocessing the monitoring data; monitoring after preprocessing The influencing factors in the data are processed twice, and the high-dimensional influencing factor group is constructed according to the potential influencing mode of the influencing factors; the lasso analysis model is established according to the influencing factors and feature screening is carried out to determine important influencing factors; the important influencing factors are used as the corresponding influencing factors On behalf of the influencing factors, construct the influencing factor data system, use the random forest algorithm and the Gini coefficient to sort the importance of the influencing factors, and use it to comprehensively evaluate the impact of each influencing factor on the valley width deformation. The present invention quantitatively selects representative influencing factors to represent partial influencing factors, and compares the importance of each influencing factor on the valley amplitude deformation, so as to provide a basis for the safety and stability supervision of the dam area engineering.

Description

technical field [0001] The invention relates to a method for analyzing valley width deformation of a high arch dam, in particular to a method for analyzing valley width deformation of a high arch dam based on lasso and random forest. Background technique [0002] Valley width refers to the relative distance between the two sides of the valley at the same elevation, and is an important indicator for monitoring mountain deformation. The valley deformation of high arch dams in the canyon area may induce serious natural disasters. The monitoring data of many high arch dams that have been built show that there is obvious valley deformation in the dam area. The control of valley deformation is of great importance to the safety of the dam area. Guiding significance. [0003] At present, the research on the valley deformation mainly focuses on the stress state and deformation mechanism of the dam body, and there are few studies on the factors affecting the valley deformation. Some...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06K9/62G06F30/20
CPCG06Q10/06393G06F18/24323
Inventor 徐卫亚史宏娟孟庆祥杨兰兰闫龙
Owner HOHAI UNIV
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