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Mountain torrent disaster type prediction method based on riverbed gradient and water-sand coupling water level

A technology of disaster types and prediction methods, applied in prediction, instrumentation, climate change adaptation, etc.

Active Publication Date: 2021-02-19
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing technology still lacks a method for accurately judging the types of mountain floods and sand disasters

Method used

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  • Mountain torrent disaster type prediction method based on riverbed gradient and water-sand coupling water level
  • Mountain torrent disaster type prediction method based on riverbed gradient and water-sand coupling water level
  • Mountain torrent disaster type prediction method based on riverbed gradient and water-sand coupling water level

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Embodiment Construction

[0063] The technical solutions of the various embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. 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 present invention.

[0064] In this embodiment, the method for predicting the type of mountain torrent disasters in mountainous watersheds includes the following steps:

[0065] (1) Select the mountainous river section that needs to be predicted for the type of mountain torrent disaster as the target section, and select the steep and gentle connecting section of the target section according to the riverbed gradient of the target section, and the steep and slow section is formed by the upstream river The hydraulic radii of the upstre...

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Abstract

The invention discloses a mountain torrent disaster type prediction method based on riverbed gradient and water-sand coupling water level, comprising the following steps: firstly, selecting a mountainriver reach needing mountain torrent disaster type prediction as a target reach, selecting a steep and slow connection reach of the target reach according to the riverbed gradient of the target reach, wherein the steep and slow connection reach is composed of an upstream river section and a downstream river section, and the riverbed gradient of the upstream river section is larger than that of the downstream river section; calculating a water depth change proportion caused by a water-sediment coupling effect according to a formula, and calculating a riverbed gradient value of an upstream river section; and comparing with a mountain torrent disaster type judgment range, and judging the type of the mountain torrent disaster in the target river reach. According to the invention, the mountaintorrent disaster type can be accurately judged, more scientific and reliable guidance is provided for mountain torrent disaster prevention and control, and the research blank in the field is filled.

Description

technical field [0001] The invention belongs to the technical field of data processing methods for monitoring or prediction purposes, and relates to mountain torrent disaster data processing and disaster type prediction and prevention, and relates to a mountain torrent disaster type prediction method based on river bed gradient and water-sediment coupled water level. Background technique [0002] Mountain torrents refer to the general term for the floods caused by floods along rivers and streams in mountainous areas due to heavy rain, collapse of flood control facilities, etc., and the accompanying landslides, collapses, and debris flows. Mountain torrent disasters are the hazards caused by mountain torrents, including casualties, property losses, infrastructure damage, and environmental resource damage caused by flooding of streams and rivers, mudslides, and landslides. [0003] In the past, people had insufficient understanding of the mountainous environment where mountain...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/26
CPCG06Q10/04G06Q50/265Y02A10/40
Inventor 刘兴年刘超单钰淇许唯临黄尔聂锐华
Owner SICHUAN UNIV
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