Underwater bridge pier detection device and method based on supersonic sounding and three-dimensional reconstruction technologies

Abstract

The present invention discloses an underwater bridge pier detection device and method based on supersonic sounding and three-dimensional reconstruction technologies. The device comprises an ultrasonic sensor array module, a data collection module, a lifting control device, a lower computer and an upper computer. The ultrasonic sensor array module is configured to cling to a detected pier; the lifting control device is configured to control the ultrasonic sensor array module to move up and down; the data collection module is configured to perform collected data transmission and then transmit the data to the lower computer; a lower computer control module is configured to control the lifting control device and measure the up-down movement distance of the ultrasonic sensor array module along the vertical direction of the bridge pier; and the lower computer fuses the data collected by the data collection module and transmits the fused data to the upper computer through a communication module, and the upper machine analyzes the data through a related algorithm to obtain a bridge pier detection result. The detection process does not need diving operation and is relatively safe; the method is simple in system principle, simple to operate and visual and reliable in test result, and accords with the requirement for guaranteeing safe operation of road bridges.

Description

technical field [0001] The invention relates to the field of underwater pier detection, in particular to a nondestructive detection device and method for underwater pier detection based on ultrasonic ranging and three-dimensional reconstruction technology. Background technique [0002] The bridge pier is one of the important structures of the bridge. It not only bears the dead load and live load of the bridge, but also transmits it to the foundation. Therefore, as an important part of the bridge, once a problem occurs, it will bring major safety hazards to the bridge, and even endanger the bearing capacity of the bridge or cause the bridge to collapse. After a period of operation, bridges often suffer from diseases due to poor foundation concrete pouring quality or long-term erosion and erosion of flowing water, such as pier emptying, tilting, sinking, concrete erosion, wear, damage, exposed ribs, corrosion, clamping, etc. Mud and cracks, etc., these diseases will endanger ...

AI Technical Summary

Problems solved by technology

The underwater depth that can be reached by diver detection is limited and there are potential safety hazards; underwater robot detection, it is difficult to move the detection equipment smoothly and the detection quality of video detectors decreases when encountering deep water rapids, which affects the detection effect, or even cannot be carried out; cofferdam drainage detection is difficult Large, long and poorly feasible

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