A Debris Flow Early Warning Method

A technology of debris flow and watershed area, applied in the field of meteorology, can solve the problems of low reliability and poor adaptability, and achieve the effect of high reliability, high precision and strong universality

Active Publication Date: 2021-06-11
BEIJING GEOLOGY INST
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Problems solved by technology

[0006] Aiming at the poor adaptability and low reliability of the debris flow early warning method in the prior art, the present invention provides a debris flow early warning method, aiming to improve the universality and reliability of the debris flow early warning method

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  • A Debris Flow Early Warning Method
  • A Debris Flow Early Warning Method
  • A Debris Flow Early Warning Method

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Embodiment Construction

[0058] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0059] Debris flow is a frequent and frequent geological disaster, which often poses a great threat to the safety of people's lives and property. Some scholars use linear fitting to deal with the problem of early warning of debris flow, and the results show that the accuracy of the early warning model obtained is not high; some scholars use the strong approximation ability of artificial neural network to establish a early warning model of debris flow and improve the prediction accuracy. However, in the debris flow early warning model based on the artificial neural network, the choice of its structural form is a process of continuous training and learning, and the prediction accuracy depends to a large extent on the experience and level of the user, which limits ...

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Abstract

The invention relates to a mud-rock flow early warning method, comprising: obtaining the specific values ​​of key influencing factors of the mud-rock flow to-be-early-warning area during the observation period t; The early warning value of the key trigger factor. The debris flow early warning method provided by the present invention is based on the multi-area debris flow triggering and early warning binary tree that characterizes the non-linear functional relationship between the rainfall index of different gully debris flows and its watershed area, loose material rate and average slope of the ditch bed, and realizes debris flow under different geological environment backgrounds Early warning, high precision and high reliability.

Description

technical field [0001] The invention relates to the field of meteorology, in particular to a mud-rock flow early warning method. Background technique [0002] Debris flow is one of the common sudden geological disasters in mountainous areas. It has the characteristics of sudden outbreak, strong impact and strong destructive power. Once it occurs, it will bring huge losses to people's lives and property. Therefore, the early warning and forecasting of debris flow is the focus of research by geological disaster authorities and many scholars. [0003] For a long time, a large number of research results and engineering practical experience have been published on the triggering role of precipitation in debris flow outbreaks. For example, on the basis of statistical analysis of existing debris flow disasters in the research area, various forms of rainfall combinations are selected as early warning indicators, and linear fitting, Logistic models or neural network models are used t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B21/10G06Q10/04
CPCG06Q10/04G08B21/10
Inventor 翟淑花冒建南赟刘欢欢王云涛王强强熊春华王艳梅
Owner BEIJING GEOLOGY INST
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