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Method for early recognition of small watershed geological disaster hidden danger points

A technology for early identification of geological hazards, applied in image data processing, complex mathematical operations, instruments, etc.

Pending Publication Date: 2021-09-10
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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Problems solved by technology

[0003] At present, domestic and foreign methods for early identification of hidden danger points of geological disasters mainly use InSAR, LiDAR and UAV optical remote sensing technologies, and more qualitative identification is the main method. The identification theory and methods are relatively scattered, and a certain theoretical system has not yet been formed.

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  • Method for early recognition of small watershed geological disaster hidden danger points
  • Method for early recognition of small watershed geological disaster hidden danger points
  • Method for early recognition of small watershed geological disaster hidden danger points

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[0036] A method for early identification of hidden danger points of geological hazards in small watersheds, comprising the following steps:

[0037] (1) Statistical analysis of existing surveys and geological data on geological hazards in small watersheds ( figure 1 ), including displacement data at the time of failure, oblique deformation data, rainfall data, position and shape before and after deformation and failure, damage accumulation range, avalanche process, and physical and mechanical parameters of rock and soil mass.

[0038] (2) With the help of high-precision remote sensing, InSAR, LiDAR and other composite high-definition spatial recognition technologies ( figure 2 ), through the laser detection and ranging system installed on the UAV carrier, measure the change process of geological hazards in small watersheds, and obtain high-resolution data images and digital elevation models ( image 3 ), according to the specific data of the spatial distribution of unfavorab...

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Abstract

The invention discloses a method for early recognition of small watershed geological disaster hidden danger points. The method comprises the following steps: (1) constructing a small watershed geological disaster three-dimensional high-precision digital scene through a composite high-definition space recognition technology and ground fine survey; (2) carrying out small watershed geological disaster space and time distribution rule identification research by means of an artificial intelligence method; (3) combining indoor and outdoor tests and a numerical simulation method to construct a geological disaster starting identification model and a critical discrimination index system; and (4) establishing interpretation identification marks of various potential hidden dangers, and forming an early-stage identification technical method for geological hidden dangers. Through a composite high-definition space recognition technology, an artificial intelligence method, indoor and outdoor tests, disaster starting numerical simulation and the like, geological disaster hidden danger point early recognition research is carried out for a small watershed, the result can provide a theoretical basis for a geological disaster forecasting system, and important parameters are provided for management project planning, design and the like.

Description

technical field [0001] The invention belongs to the technical field of innovative methods for geological disaster identification, in particular to a method for early identification of geological disaster hidden danger points in small watersheds. Background technique [0002] The early identification technology of geological hazards is a relatively advanced research topic, which aims to identify potential disasters or potentially unstable areas in advance, and guide engineering activities to avoid or prevent disasters in time. This technology can effectively reduce the economic losses and casualties caused by geological disasters, which has important practical significance. With the continuous progress of the research on the formation mechanism of geological disasters and the continuous development of science and technology, more and more new theories and technologies have begun to be applied to the early identification technology of geological disasters. "Landslides and Its...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06T17/05G06F16/2458G06F17/18G06Q50/26G06F111/10
CPCG06F30/20G06T17/05G06F16/2462G06F16/2465G06F17/18G06Q50/26G06F2111/10
Inventor 黄栋杨宗佶田宏岭姜元俊王萌
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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