Variable cross-section pier underwater structure detection device and detection method thereof

Abstract

The invention discloses a variable cross-section bridge pier underwater structure detection device and a detection method thereof. The detection device comprises a top fixing mechanism, a clamping and pushing mechanism, an X-type self-adaptive detection mechanism and a fixing support, wherein the fixing mechanism surrounds a bridge pier on water through a rotatable fixing clamp; the distance between the relative positions of the detection device and the bridge pier is controlled, meanwhile, it is guaranteed that the whole device cannot shake due to water flow impact, the urgent turbulent water flow influence under major bridge detection is overcome, and the clamping and pushing mechanism clamps and pushes the X-type self-adaptive detection mechanism to wrap the bridge pier and then loosens the clamping hand. The X-type self-adaptive detection mechanism can be self-adjusted along with downward sliding to increase the opening so as to adapt to the change of the variable-cross-section bridge pier, the X-shaped self-adaptive detection mechanism moves downwards layer by layer for detection, after detection is completed, the detection mechanism is pulled back through the lifting module, the clamping and pushing device clamps and withdraws again, and the upper fixing mechanism is unlocked to complete recovery.

Description

technical field

[0001] The invention relates to the technical field of underwater detection, in particular to a detection device and a detection method for underwater structures of bridge piers with variable cross-sections. Background technique

[0002] In the past ten years, driven by the rapid development of the country's economy, the number of bridges in China has increased by more than 30,000 per year. At present, the total number of bridges in the country has reached 1 million. With such a huge number of bridges, a large number of bridges are aging, especially the underwater structure of bridges is eroded by running water, which has become a hidden danger that threatens the safety of bridge traffic. The detection methods of the underwater structure of bridges are different from those of the above-water structures, and there are technical difficulties such as difficult coverage of the detection range, difficulty in decentralizing detection equipment, and difficulty in ev...

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