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Landslide susceptibility evaluation method based on terrain unit

A technology of susceptibility and terrain, applied in the direction of instruments, data processing applications, design optimization/simulation, etc., can solve problems such as poor reliability of landslides, and achieve reliable research results

Active Publication Date: 2022-07-26
HENAN UNIVERSITY
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  • Description
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Problems solved by technology

[0004] Aiming at the problem of poor reliability of existing landslide susceptibility evaluation methods, the present invention provides a landslide susceptibility evaluation method based on terrain units

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  • Landslide susceptibility evaluation method based on terrain unit
  • Landslide susceptibility evaluation method based on terrain unit
  • Landslide susceptibility evaluation method based on terrain unit

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Embodiment Construction

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0046] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

[0047] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.

[0048] The landslide susceptibility evaluation method based on the terrain unit ...

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Abstract

The landslide susceptibility evaluation method based on terrain unit solves the problem of poor reliability of the existing landslide susceptibility evaluation methods, and belongs to the field of regional geological disaster evaluation. The invention includes: determining the location of the landslide point and the relevant disaster-causing factor data; obtaining discrete intervals of the disaster-causing factor data, each discrete interval corresponds to a classification category, and using the intersection points and inflection points of the area classification ratio curve and the weight ratio index curve to conduct the interval analysis. Optimization; count the area of ​​each discrete interval after optimization and the number of corresponding landslide points to obtain the slip index; use the terrain surface model DEM to build a river network; build a terrain unit according to the river network; The degree index is assigned to each terrain unit; the random forest model is constructed, whose input is the data of each terrain unit, and the output is the landslide susceptibility probability value of each terrain unit.

Description

technical field [0001] The invention relates to a landslide susceptibility evaluation method based on terrain units, and belongs to the field of regional geological disaster evaluation in earth system science. Background technique [0002] Landslide susceptibility evaluation is the basis for the prevention and control of landslide geological hazards, and landslide hazard factors and landslide evaluation unit division are the two most important components in landslide susceptibility evaluation. The analysis of landslide hazard factors is the primary task of regional landslide disaster risk assessment and prevention. At the same time, there are still some problems in the division of landslide susceptibility evaluation units. There is no relatively unified classification standard, which leads to the reliability of landslide susceptibility evaluation methods Bad sex. [0003] The occurrence of landslide itself is a relatively complex process, and the construction of a scientifi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/27G06K9/62G06Q10/06G06Q50/26G06F111/10
CPCG06F30/27G06Q10/0635G06Q50/265G06F2111/10G06F18/24323
Inventor 崔耀平李梦迪邱林单燕祥朱连奇史志方张香
Owner HENAN UNIVERSITY
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