Landslide susceptibility evaluation method and system

An evaluation method and susceptibility technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of difficulty in obtaining historical landslide data sets and low accuracy of geological disasters.

Pending Publication Date: 2022-02-25
YUNNAN UNIV
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Problems solved by technology

However, evaluating the susceptibility of geological hazards is a complex process, and various influencing factors related to landslide hazards must be considered. However, in actual work, there are still many uncertainties in obtaining vari...

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  • Landslide susceptibility evaluation method and system
  • Landslide susceptibility evaluation method and system
  • Landslide susceptibility evaluation method and system

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0041] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0042] Such as Figure 1-2 Shown, the landslide susceptibility evaluation method provided by the invention comprises the following steps:

[0043] Step 101: Select evaluation factors based on the basic data of th...

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Abstract

The invention discloses a landslide susceptibility evaluation method and system. The method comprises the steps of selecting evaluation factors based on basic data of a to-be-researched region; giving evaluation factor weights through a frequency ratio model; using SPSS software to carry out multi-collinearity diagnosis on the evaluation factors, and removing factors with multi-collinearity; based on the weight values of the residual evaluation factors, grading the geological disaster susceptibility through a logistic regression model; generating an average deformation rate map based on the SAR data; establishing an incidence matrix based on the average deformation rate diagram and the geological disaster susceptibility grade; and correcting the geological disaster susceptibility grade based on the relation matrix. On one hand, the frequency ratio-logistic regression coupling model is utilized to solve the defect that the precision of evaluating the landslide susceptibility by a single model is low, on the other hand, the InSAR is utilized to solve the limitation that a real historical landslide data set is difficult to obtain due to complex topographic conditions, and meanwhile, the InSAR result is utilized to optimize the grade of the landslide susceptibility.

Description

technical field [0001] The invention relates to the technical field of geological hazard evaluation, in particular to a landslide susceptibility evaluation method and system. Background technique [0002] Our country is a country where geological disasters occur frequently, and the geological disasters that occur every year cause serious losses to our country. Especially in the western region where the geological environment is particularly complex, geological disasters will not only seriously damage the ecological environment of the region, but also seriously threaten the safety of human life and property. The evaluation of geological disaster susceptibility is to study the possibility of geological disasters in a certain area, usually using extremely high, high, medium, low, and extremely low susceptibility levels for evaluation. Carrying out research on the susceptibility of geological disasters along highways can provide important basis for highway maintenance, disaster...

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Application Information

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IPC IPC(8): G06F30/20G06F119/02
CPCG06F30/20G06F2119/02
Inventor 李益敏计培琨杨雪杨一铭赵志芳
Owner YUNNAN UNIV
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