Fuzzy comprehensive evaluation and analysis method for dam risk levels based on cloud model

A technology of fuzzy comprehensive evaluation and risk level, applied in fuzzy logic-based systems, instruments, electrical components, etc., can solve problems such as danger, dam collapse, flood, etc., and achieve the effect of reducing loss of life and property

Inactive Publication Date: 2020-04-21
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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Problems solved by technology

Once the flood level of the upstream barrier lake rises to a super high level or the barrier body is damaged by seepage erosion, the upstream lake water will overflow or flow out through the seepage channel, causing the barrier body to collapse and form a flood, which is extremely dangerous

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  • Fuzzy comprehensive evaluation and analysis method for dam risk levels based on cloud model
  • Fuzzy comprehensive evaluation and analysis method for dam risk levels based on cloud model
  • Fuzzy comprehensive evaluation and analysis method for dam risk levels based on cloud model

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Embodiment Construction

[0041] Let's take Tangjiashan barrier dam as an example to explain the content of the above invention in detail:

[0042] The Tangjiashan barrier dam is mainly composed of cataclysmic rocks formed by bedrock sliding and crushing. It has high strength and a relatively wide and thick dam body. According to expert analysis, the risk of dam failure at the initial stage is relatively small. The upper part on the right side of the dam body is gravel soil with low permeability, while the dam body has high impermeability. However, when the water level rises to a certain height, it may cause concentrated seepage and erosion damage to the dam body, thereby increasing the risk of local collapse on the downstream slope of the dam body. The Tangjiashan dam failure risk system is a complex system with multiple levels and multiple indicators. It has the characteristics of fuzziness and randomness. Usually, judging whether a barrier dam is risky and how big the risk is is a "fuzzy" problem i...

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Abstract

The invention relates to a cloud model-based fuzzy comprehensive evaluation and analysis method for the risk level of a barrage. According to the method, the influence of various factors on the risk degree of the weir dam is considered; uncertainty, complexity and fuzziness exist; analyzing the risk of the damming dam; a fuzzy comprehensive evaluation system for the dam risk level based on the cloud model is established; selecting a stability index, a monitoring index, a vulnerability index, a drainage basin characteristic index, a geological condition index, a geometrical morphology index anda structure index as evaluation indexes; the evaluation indexes are comprehensively considered; qualitative description of the weir dam risk grade is converted into quantitative numerical conversion;the risk grade of the weir dam is obtained through comprehensive analysis, when the risk of the weir dam is high, all risk indexes of the weir dam need to be monitored, analyzed and evaluated all thetime in time, necessary treatment measures need to be taken in time, and life and property losses caused by dam burst are avoided.

Description

technical field [0001] The invention relates to the technical field of comprehensive evaluation methods, in particular to a method for fuzzy comprehensive evaluation and analysis of barrier dam risk levels based on cloud models. Background technique [0002] Barrier lakes are formed by volcanic lava flows, moraines, or landslides caused by landslides and landslides that block valleys, river valleys or riverbeds and store water behind them. The lake formed by the interception of volcanic lava flow is also called lava barrier lake. The barrier body forming the barrier lake is not fixed, and the barrier body is subject to erosion, erosion, dissolution and collapse. Once the flood level of the upstream barrier lake rises to a super high level or the barrier body is damaged by seepage erosion, the upstream lake water will overflow or flow out through the seepage channel, causing the barrier body to collapse and form a flood, which is extremely dangerous. With the continuous emer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06N7/02G06Q10/06G06Q50/26
CPCG06N7/02G06Q10/0635G06Q10/06393G06Q50/26
Inventor 张兴胜董金玉王朝阳张昕刘欣宇宋午阳宋晓焱黄志全于怀昌刘时鹏陈上元
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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