System for detecting potential safety hazards of hydraulic structure

Abstract

The invention discloses a system for detecting potential safety hazards of a hydraulic structure. The system comprises a dynamic excitation source, a measuring point optimal layout subsystem, a signal collecting subsystem, a signal processing subsystem and an early warning system, wherein the dynamic excitation source is used for performing outside excitation on the hydraulic structure and causing the hydraulic structure vibrate so as to send power response signals; the measuring point optimal layout subsystem is used for acquiring the optimal combination and arranging positions of all sensors used for sensing the power response signals according to a specific structure of the hydraulic structure; the signal collecting subsystem is used for collecting the power response signals sensed by all the arranged sensors; the signal processing subsystem is used for processing and analyzing the power response signals sensed by all the sensors; and the early warning system is used for sending early warning information according to a processing result for the power response signals. The system disclosed by the invention can be used for detecting the hidden danger scope of the hydraulic structure and the damage degree of the structure and can be used for comprehensively checking the overall health condition of the hydraulic structure.

Description

technical field [0001] The invention relates to a hidden safety hazard detection system for hydraulic structures, which belongs to the technical field of water conservancy and hydropower engineering. Background technique [0002] Hydraulic structures, due to their special service environment, have to bear the influence of high-speed water flow, freezing, temperature, earthquake and other environmental loads for a long time, which will cause structural damage to their structures due to corrosion and fatigue, and these damages often exist In the underwater position of the structure, it is not easy to be found and pose a safety hazard. Among the various types of reservoirs that have been built in my country, most of them have been in operation for too long, are seriously aged and in disrepair, and have serious health problems and long-term safety hazards. Under the influence of continuous external environmental loads, serious dam collapse events are prone to occur, resulting in...

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Problems solved by technology

Destructive testing methods are inefficient and harmful to the detected object, which is difficult to meet the needs of sluice engineering testing in the new era; non-destructive testing methods (such as rebound method, ultrasonic method, seismic wave method, geological radar method, etc.) need to know the approximate hidden dangers in advance location, and the detection instrument can reach the approximate location of the hidden danger. Due to the influence of water, it is difficult for the traditional non-destructive testing method to detect the hidden danger in the underwater part of the structure.

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