Prefabricated pier omni-directional structure detection and maintenance platform

Abstract

The invention discloses a prefabricated pier omni-directional structure detection and maintenance platform which comprises a prefabricated pier surrounding structure used for being matched with a prefabricated pier, wherein a carrying frame is arranged above the prefabricated pier surrounding structure, a lifting device is arranged in the upper-layer space of the carrying frame, and a hydraulic ballast platform and a detection and maintenance platform are arranged in the lower-layer space of the carrying frame; the detection and maintenance platform is located below the hydraulic ballast platform in the working period and ballasts the hydraulic ballast platform in the non-working period; the detection and maintenance platform is connected with a hoisting device and moves in the vertical direction of the pier under the action of the hoisting device; the detection and maintenance platform is arranged on the outer side of the pier in a sleeving mode and internally provided with an annular structure, and the detection and maintenance platform is connected with the detection device in the detection working period or connected with the maintenance device in the maintenance working period; and the detection device and the maintenance device are placed on the hydraulic ballast platform in respective non-working periods.

Description

technical field [0001] The invention relates to the field of bridge pier safety protection, in particular to a prefabricated bridge pier all-round structure detection and maintenance platform. Background technique [0002] In recent decades, with the rapid development of national infrastructure, the total number of domestic bridge piers has exceeded one million, and the number of bridges has continued to grow. However, most bridge piers have a long service life, and bridge safety problems have become increasingly serious. At present, bridge pier detection mostly relies on the cofferdam method, artificial underwater detection, and underwater robot detection. These detection methods are complex, costly, and lack targeted repair of pier damage. [0003] At present, there are the following disadvantages in existing detection methods: [0004] 1) The cofferdam method has a long construction period, which has a great impact on surrounding traffic and pollutes the water environmen...

AI Technical Summary

Problems solved by technology

[0004] 1) The cofferdam method has a long construction period, which has a great impact on surrounding traffic and pollutes the water environment. It is difficult to detect the high part of the pier for large piers, and it is only suitable for relatively shallow water flow environments;

[0005] 2) Manual underwater detection relies on divers for underwater detection. Due to the complex environment near the pier, the water flow is fast and the impact force is strong, the safety of divers is difficult to be guaranteed. At the same time, due to the complex surface conditions of the pier, it is difficult to rely on divers to eliminate the surface of the pier. The interference of the environment, but the precise disease condition of the pier cannot be detected;

[0006] 3) The underwater robot detection method mostly relies on the ROV robot to perform optical inspection on the surface of the pier, but the underwater robot is easily affected by the rapid water flow near the pier, and it is difficult for the underwater robot to obtain accurate data on the surface of the pier. The part above the water surface is tested

The defects of this patent application are: 1) the water fastening platform is difficult to be fixed on the pier for a long time, and each inspection requires additional installation time and cost; 2) it can only be inspected, and the surface damage of the pier cannot be repaired

This patent application still has the following disadvantages: 1) The vertical thruster cannot be accurately positioned and stopped in the vertical direction, and thus cannot achieve all-round detection in the vertical direction of the pier; 2) Frequent expansion and contraction of the ring belt will cause deformation of the track, thereby affecting On-orbit motion stability of underwater robots affects detection accuracy

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