Ultrasonic concrete crack depth detection device and work method thereof

Abstract

The invention relates to the field of concrete member maintenance, and specifically relates to concrete crack depth detection device improvement based on ultrasonic wave and a detection method thereof. The concrete crack depth detection device based on the ultrasonic wave comprises an ultrasonic concrete crack detector and matched equipment, wherein the crack detection device is improved in a following mode, an energy converter is fixed to the inside of the detection device to form a ruler-shaped device to be matched with a novel detection method to detect cracks. According to the novel detection equipment and the detection technological method disclosed by the invention, crack pattern printing images can be directly generated; furthermore, the detection device is simple and safe to operate in places where a detecting vehicle cannot reach and personnel cannot enter conveniently, and is more practical; in addition, cost is reduced.

Description

technical field [0001] The invention relates to the field of concrete component maintenance, in particular to an ultrasonic concrete crack depth detection device and a working method thereof. Background technique [0002] In the field of crack detection of concrete components, the existing concrete crack depth detection device has a complex structure and cumbersome detection steps. At least three people are required to cooperate with each other to complete a crack detection. The measured data also needs to be post-processed. , and the detection method of the existing detection device, that is, the ultrasonic flat measurement method, can only detect vertical cracks and cannot detect inclined cracks. However, many cracks in concrete members in existing projects are inclined, and the existing device can neither detect the angle of inclination nor detect It is impossible to obtain the specific fracture shape due to the inclined fracture depth, and the new methods developed by ex...

AI Technical Summary

Problems solved by technology

[0002] In the field of crack detection of concrete components, the existing concrete crack depth detection device has a complex structure and cumbersome detection steps. At least three people are required to cooperate with each other to complete a crack detection. The measured data also needs to be post-processed. , and the detection method of the existing detection device, that is, the ultrasonic flat measurement method, can only detect vertical cracks and cannot detect inclined cracks. However, many cracks in concrete members in existing projects are inclined, and the existing device can neither detect the angle of inclination nor detect The depth of the inclined fracture cannot obtain the specific fracture shape, and the new methods developed by the existing technology for this problem, such as the triangular method or arc method to find the fracture endpoint, are cumbersome and require a lot of testing work, and the actual feasibility is low.

[0003] The existing concrete crack depth detection device has a complex structure and cumbersome detection steps. To complete a crack detection, at least three people are required to cooperate in the detection. One of them holds the transducer and constantly adjusts the position of the transducer. Responsible for recording acoustic time data, the measured data still needs to be post-processed, the whole detection process consumes a lot of manpower and material resources, and the detection method of the existing detection device, that is, the ultrasonic flat measurement method, can only detect vertical cracks, and some new methods for detecting oblique cracks , requires a lot of testing work, and many cracks in concrete components in existing projects are inclined. The existing device can neither detect the angle of inclination conveniently nor quickly detect the depth of inclined cracks, and cannot obtain the specific crack shape. The existing ultrasonic detection device is for Some special environments, such as the dark place inside the reinforced concrete box girder, the top of the large concrete member, and the detection of the inner flange of the double-width bridge are helpless

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