Concrete dam long-term operation safety early warning method

A technology for safety early warning and concrete dams, applied in alarms, force/torque/work measuring instruments, measuring devices, etc., can solve the problem of long time required, large investment of human resources, monitoring data and analysis results that cannot be applied to dams in time Problems such as operation management and safety early warning to achieve the effect of improving reliability
CN111256754AActive Publication Date: 2020-06-09HOHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HOHAI UNIV
Publication Date
2020-06-09

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Abstract

The invention discloses a concrete dam long-term operation safety early warning method which comprises the following steps: selecting key monitoring parts and measuring points according to the workingcharacteristics and damage types of a concrete dam, grading the measuring points with reliable measured values, and drawing up dam safety early warning indexes according to the measured value data ofthe concrete dam; and carrying out safety early warning on the concrete dam by adopting a comprehensive early warning system of measuring point grading and considering the spatial correlation index.Whether the dam is in a safe operation state or not is rapidly evaluated, analyzed and early warned through the real-time monitoring data of the concrete gravity dam; and dam monitoring value abnormality is discovered in time according to the importance levels of the measuring points and the index association relationship, the dam operation warning condition is identified, and support is providedfor rapid safety early warning of long-term operation of the concrete gravity dam and management scheduling in response to the warning condition.
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Description

technical field

[0001] The invention relates to dam safety monitoring and operation early warning technology, in particular to a long-term operation safety early warning method for concrete dams. Background technique

[0002] At present, the main methods for long-term operation safety evaluation of gravity dams include expert experience method, historical data analogy method, event tree analysis method, logical reasoning based on fault tree method, etc. In the past conventional dam safety evaluation, often focus on The status of the dam safety influencing factors and their impact on the dam structure, while ignoring the original monitoring data fed back by the dam safety monitoring system. In fact, the original monitoring data can not only effectively reflect the change process of the physical quantity of the dam under various loads, but also reflect the characteristics of the dam's own structural behavior and the change law of the external environmental load, especially rev...

Claims

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