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Blockage collapse type debris flow early warning method based on sudden water level change

A technology for sudden changes in water level and debris flow, applied to alarms, engine lubrication, climate change adaptation, etc., can solve problems such as limited distance and difficulty in ensuring orderly evacuation of residents in hazardous areas, so as to improve reliability, ensure orderly evacuation, The effect of long warning lead times

Active Publication Date: 2021-07-09
INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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Problems solved by technology

Due to the limited distance, it is difficult to guarantee the orderly evacuation of residents in the hazardous area due to the advance warning

Method used

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  • Blockage collapse type debris flow early warning method based on sudden water level change

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Embodiment Construction

[0019] The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

[0020] Please refer to figure 1 , the invention discloses a mud-rock flow early warning method based on sudden changes in water level, which comprises the following steps:

[0021] S1. A water level sensor is set on the ditch, the water level sensor is set on the upstream of the debris flow hazard area, and the early warning center sets the unit monitoring time for the water level sensor;

[0022] S2. The water level sensor transmits data to the early warning center, and the early warning center obtains the data of the water level sensor, and calculates the average water level and average fluctuation range of the channel;

[0023] S3. When the early warning center detects that the water level data monitored by the water level sensor has dropped beyond the average fluctuation range, the early warning center issues early warning informatio...

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Abstract

The invention discloses a blockage collapse type debris flow early warning method based on sudden water level change, which comprises the following steps that S1, a water level sensor is arranged on a channel, the water level sensor is arranged on the upstream of a debris flow hazard area, and a unit monitoring duration is set for the water level sensor by an early warning center; s2, the water level sensor transmits data to an early warning center, the early warning center obtains the data of the water level sensor, and the average water level and the average fluctuation amplitude of the channel are calculated; s3, when the early warning center monitors that the water level data monitored by the water level sensor declines and exceeds the average fluctuation amplitude, the early warning center issues different levels of early warning information according to the exceeding degree; and S4, when the early warning center monitors that the water level data monitored by the water level sensor declines, suddenly and greatly rises and then declines to a stable water level, and the stable water level lasts for at least two unit monitoring durations, the early warning center relieves the early warning information. Through the early warning method, the blockage and collapse type debris flow can be early warned, the early warning advance is increased, and disasters caused by the debris flow to people or objects are reduced.

Description

technical field [0001] The invention relates to the field of early warning methods for natural disasters, in particular to a method for early warning of blockage-type debris flows based on sudden changes in water levels. Background technique [0002] Debris flow refers to a special torrent carrying a large amount of sediment and stones due to landslides caused by heavy rain, snowstorm or other natural disasters in mountainous areas or other areas with deep valleys and steep terrain. Debris flow has the characteristics of suddenness, fast velocity, large flow rate, large material capacity and strong destructive power. Debris flows often destroy highways, railways and other transportation facilities and even villages and towns, causing huge losses. [0003] Debris flow disaster prevention mainly takes measures such as relocation and avoidance, engineering defense, monitoring and early warning. Among them, monitoring and early warning mainly use indicators such as rainfall, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/10G01F23/00
CPCG08B21/10G01F23/00Y02A50/00
Inventor 苏志满
Owner INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI
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