Construction method of multiple anti-corrosion protection for steel cylinder revetment structure in Haizhong

Abstract

The invention discloses a construction method for multiple anti-corrosion protection of a steel cylinder revetment structure in the sea. The auxiliary grid is connected as a whole at sea; fill each steel cylinder and steel auxiliary grid with medium-coarse sand to a certain distance from the steel cylinder and the upper edge of the steel auxiliary grid; pour capping concrete above the medium-coarse sand, Pouring sulfur mortar; pouring concrete on the coating of the steel cylinder and the outer wall of the steel auxiliary cell on the sea side above the design low water level and below the roof elevation; welding sacrificial anode blocks on the steel cylinder and the outer wall of the steel auxiliary cell on the sea side; The reference electrode, welding cathode welding spot and zero welding spot are respectively installed on the upper part of the steel cylinder on each land side and the outer wall of the steel auxiliary grid, and the lead wires of the reference electrode, zero welding spot and cathode welding spot are connected to the anode Well built-in pre-packaged anode body connections. Adopting the method can effectively play the long-term anticorrosion effect of the steel structure in the sea.

Description

technical field [0001] The invention relates to the field of offshore artificial island construction, in particular to a method for multiple anti-corrosion protection of steel cylinder revetment structures in the sea. Background technique [0002] It is an emerging technology in the construction of offshore artificial islands to use steel cylinders as the revetment structure, and then perform internal reclamation to build islands after the revetment is formed. The construction method has the characteristics of fast construction, factory manufacturing, and small impact on the environment. In the current known field, the steel cylinder revetment structures adopted are all temporary structures, and the steel cylinder revetment no longer plays the role of enclosure after the island is formed, so there is no excessive requirement on the service life of the structure. However, if the steel cylinder revetment structure is used as a permanent structure, the service life is required...

AI Technical Summary

Problems solved by technology

However, a single protection measure cannot guarantee the anti-corrosion requirements of the steel structure in the sea, especially in different positions of the same component (such as the mud area, splash area, atmospheric area, backfill area, etc.), which poses a serious threat to the permanent steel cylinder revetment structure. Big security risk

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