Fundamental application manner null of underwater

摘要

PURPOSE:To prevent the leakage of grout by a method in which a sheet is attached in a skirt form to the lower part of an underwater structure, the structure is landed on the bottom, and grout is injected into the section surrounded by the sheet. CONSTITUTION:A sheet 4 having fine bandlike holes is attached in a skirt form to the lower part of an underwater structure 2, and weights 6, e.g., chain, etc., are attached to the lower end of the sheet 4. An underwater structure 2 is landed on a temporary support block on the bottom 1 under water, and a grout 5, e.g., cement mortar, etc., is injected into the space between the structure 2 and the bottom 1. Since the lower periphery of the structure 2 is surrounded by the sheet 4, the leakage of the grout 5 can be prevented.