Automatic lifting bridge pile foundation underwater maintenance device

Abstract

The invention discloses an automatic lifting type bridge pile foundation underwater overhaul device, which comprises an inner cylinder and an outer cylinder which are formed around an outer ring of the bridge pile foundation, wherein upper end covers and lower end covers are both arranged on the inner cylinder and the outer cylinder; through holes are formed in the upper end covers and the lower end covers of the inner cylinder and the outer cylinder for the bridge pile foundation to penetrate through, and waterproof airbags are arranged between the through holes and the bridge pile foundationin a circumferential manner; and a plurality of first hydraulic stretchable rods are arranged between the upper end cover of the inner cylinder and the upper end cover of the outer cylinder, and a plurality of second hydraulic stretchable rods are arranged between the lower end cover of the inner cylinder and the lower end cover of the outer cylinder. The automatic lifting type bridge pile foundation underwater overhaul device not only can comprehensively overhaul the whole bridge pile foundation, but also can realize an underwater anhydrous operation environment and ensure the safety of operators.

Description

technical field [0001] The invention relates to the technical field of bridge pile foundation inspection and repair devices, in particular to an automatic lifting type bridge pile foundation underwater inspection and repair device. Background technique [0002] Overhaul of bridge pile foundations has always been an unsolved technical problem in the bridge industry. Because the pile foundations of inland river bridges are scoured by water flow all the year round, engineering problems such as bridge pile foundation erosion, concrete falling off, steel bar corrosion and so on are extremely prone to occur, posing great safety hazards. In order to fully understand the status of underwater bridge pile foundations and eliminate potential safety hazards, maintenance personnel are often required to carry testing equipment into the water for inspection. However, due to the turbulent water flow in some river sections, it does not meet the underwater operation requirements of divers, so...

AI Technical Summary

Problems solved by technology

As the pile foundations of inland river bridges are eroded by water flow all the year round, engineering problems such as bridge pile foundation erosion, concrete falling off, and steel bar corrosion are prone to occur, posing a great safety hazard

In order to fully understand the status of underwater bridge pile foundations and eliminate potential safety hazards, maintenance personnel are often required to carry testing equipment into the water for inspection. However, due to the turbulent water flow in some river sections, it does not meet the underwater operation requirements of divers, so the inspection of bridge pile foundation conditions cannot be realized.

In addition, for existing bridge pile foundation diseases, it is necessary to adopt construction auxiliary measures such as steel sheet pile cofferdam and steel box cofferdam to create an anhydrous construction environment. These measures have the disadvantages of high investment, large-scale equipment required, and high construction risk. Disadvantages, and most of the required equipment is for one-time use, without a large secondary use value, resulting in waste of construction costs

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