Method and system for early warning mountain flood debris flow based on steep slope convergence and cross section flow calculation

A flow calculation, debris flow technology, applied in alarms, climate change adaptation, instruments, etc., can solve problems such as unreasonable, soil saturation and stability effects

Active Publication Date: 2019-02-15
李潇 +2
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is also unreasonable. Although the formation of torrents and debris flows is mainly triggered by rainfall, the accumulated rainfall, real-time rainfall and rainfall intensity in the previous period are all important triggering factors. The geological conditions and vegetation con

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for early warning mountain flood debris flow based on steep slope convergence and cross section flow calculation
  • Method and system for early warning mountain flood debris flow based on steep slope convergence and cross section flow calculation
  • Method and system for early warning mountain flood debris flow based on steep slope convergence and cross section flow calculation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] The content of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0056] For a specific debris flow ditch, combined with the attached figure 1 The flow chart of the method for early warning of torrent and debris flow based on steep slope confluence and cross-section flow calculation of the present invention is shown to meet the functional requirements of each calculation part in the model.

[0057] During the flood season, when there is continuous rainfall or short-term heavy rainfall in the debris flow ditch, the submerged range and water velocity of the ditch are an important factor to measure whether it induces sudden geological disasters. Before the debris flow is formally formed, it first forms mountain floods or slope debris flows. Considering the influence parameters of geological conditions, the flood evolution range and submerged water depth of a certain debris flow ditch in the mountainous area are ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method for early warning mountain flood debris flow based on steep slope convergence and cross section flow calculation. The method comprises the following steps of: (1) processing high-precision DEM terrain data and remote sensing data of debris flow single ditches and flow domains where the debris flow single ditches are located, so as to obtain a scattered point elevation and a slope of each grid unit; (2) obtaining a rainwater infiltration amount of each grid unit by combining with continuous long-term rainfall data, according to actual geological conditions of different debris flow ditches; (3) calculating surface flow concentration of the debris flow ditches and the flow domains where the debris flow ditches are located using a calculation method based on thesteep slope flow convergence; and (4) performing early warning base on flooding range of the mountain flood debris flow corresponding to the rainfall amount in different time periods. The invention further provides a system for early warning the mountain flood debris flow. The method and the system are applied to early warning of mountain flood and valley type debris flow. The effects are obviouson the early formation of the early warning result for the mountain flood debris flow and the improvement of the early warning efficiency. It has great practical significance for safeguarding personnel, emergency hedging, and reducing lives and property losses of people.

Description

technical field [0001] The invention relates to the technical field of disaster early warning, in particular to a mountain torrent and debris flow early warning method and system based on steep slope confluence and section flow calculation. Background technique [0002] Debris flow is the sudden geological disaster that causes the most casualties in Beijing. Since 1949, the number of deaths caused by various sudden geological disasters in Beijing has exceeded 600, and the direct economic loss has reached hundreds of millions of yuan. More than 500 people. Valley-type debris flows are most widely distributed in Beijing, and their formation can be roughly divided into three stages: meteorological inducements (mainly rainfall), formation of floods or slope debris flows, and formation of valley debris flows. It takes a period of time from the accumulation of rainfall and soil saturation in the first stage to the formation of debris flow disasters in the third stage. During this...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G08B21/10
CPCG08B21/10Y02A50/00
Inventor 李潇郭萌李大鸣许飞青韩征
Owner 李潇
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap