The cofferdam construction method in the pier steel sheet volume additional strength construction which is applied in the underwater section

摘要

Abstract Settlement topic In the pier steel sheet volume additional strength construction which is applied in the underwater sectionBeing, cofferdam manufacture efficiency it is good, at the same time, execute securelyOffering the cofferdam construction method in the pier steel sheet volume additional strength construction which it is possibleIt does. SolutionsPier steel sheet volume additional strength construction is applied in the underwater sectionIt does to hang from the metallic parts which are provided in the beam of the encountering and pier (1A) topIt is with belt block, the 1st step steel cylindrical framework existingTo install on the caisson, next on the 1st step steel cylindrical frameworkOn 2nd step steel cylindrical framework and 2nd step steel cylindrical framework 3rd stepThe steel cylindrical framework it hangs, lowering, in the terminal area of each steel cylindrical framework stoppingAdministering the water seal, to concatenate mutually with volt/bolt, 1st stepThe steel cylindrical framework the temporary wall which (2) provides outside (3) and 1st stepSteel cylindrical framework (2) between underwater concrete (5) hittingFacilities doing, 1st step steel cylindrical framework 2 and the existing caisson (1B)With to close between with the underwater concrete (5), underwater konWhen rikuto (5) solidifies, the steel cylindrical framework (2) dewatering insideThe cofferdam construction method in the pier steel sheet volume additional strength construction which obtains.