Mountain torrent risk dynamic assessment method

A technology of dynamic assessment and risk assessment, which is applied in the fields of instruments, climate change adaptation, and data processing applications. It can solve problems such as complex connection difficulties, unfavorable popularization and application, and no unified standard for classification, so as to meet scale requirements and accuracy requirements. The effect of comprehensive evaluation results and easy promotion and application

Inactive Publication Date: 2019-05-31
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

The assessment based on the risk of hazard factors is based on the analysis of hazard factors, delineating the hazard zone and hazard level, and establishing a prediction model for the range of the hazard zone. However, the determination of the weight of each hazard factor is highly subjective, and the level of the hazard zone There is no unified standard for division, which is not conducive to popularization and application; vulnerability analysis is to explore its sensitivity and resistance from the perspective of the hazard-bearing body, and evaluate the vulnerability of the hazard-bearing body through matrix methods, index methods, and curve methods. The assessment of body vulnerability needs to consider many factors, and the complex connection among them is difficult to be expressed by models, and its accuracy cannot be guaranteed due to the influenc...

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  • Mountain torrent risk dynamic assessment method
  • Mountain torrent risk dynamic assessment method
  • Mountain torrent risk dynamic assessment method

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Embodiment 1

[0045] Combine below figure 1 , the present invention is further described:

[0046] The technical solution adopted in this embodiment is a dynamic assessment method of flash flood risk based on characteristic water level or design flood. This method is mainly divided into three parts: the first is river course risk assessment, the second is village risk assessment, and the third is reservoir risk assessment. Follow the steps below to implement:

[0047] (1) Determine the assessment objects and risk assessment indicators:

[0048] Select the assessment objects of flash flood risk (rivers, villages, reservoirs), and judge the risk assessment indicators adopted by different assessment objects according to the actual situation.

[0049] When the evaluation object is a river course, there are two situations: one is that the river course has a characteristic water level; the other is that the river course has no characteristic water level.

[0050] When the river has a character...

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Abstract

The invention discloses a mountain torrent risk dynamic assessment method. The method comprises the following steps: step 1, determining an assessment object and a risk assessment index; Step 2, determining a current risk assessment level; Step 3, judging the risk degree; And 4, dynamically assessing the mountain torrent risk. According to the dynamic mountain torrent risk assessment method provided by the invention, the assessment result not only comprises the grade of the mountain torrent risk, but also comprises the degree close to a certain risk grade, and the dynamic assessment of the mountain torrent risk is carried out based on real-time monitoring data or simulation forecast data of a model, so that a more effective decision basis is provided for mountain torrent disaster defense.

Description

technical field [0001] The invention relates to the technical field of flood defense, in particular to a dynamic assessment method for mountain torrent risk, which is mainly used for mountain torrent risk assessment and early warning decision-making. Background technique [0002] Mountain torrent disasters are the main disasters that cause casualties among the current natural disasters in our country, and they are also the difficulties and weak links in our country's flood defense work. It has the characteristics of multiple points and wide areas, obvious seasonality and regionality, frequent outbreaks, rapid disaster formation, and strong destructive power. After 10 years of construction of engineering and non-engineering facilities, not only the defense level of mountain torrent disasters has been improved, but also a large amount of reliable basic data has been accumulated, including mountain torrent disaster investigation and evaluation data, land use and vegetation type...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/26
CPCY02A10/30Y02A10/40
Inventor 刘荣华田济扬郭良梁立峰翟晓燕毕青云王丽珍刘昌军刘启张晓蕾
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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