抄録
Vertical hydraulic barrier in a coastal waste reclamation facility takes an important role to separate the waste from the sea environment. Steel companies and marine constructors have developed new technologies to meet the technical standard issued in 1998 as ministry ordinances in Japan. Although performance confirmation for joints of the vertical hydraulic barrier, mostly cutoff sheet pile wall, is important, it is impossible to confirm all of their joints. Therefore, it is useful if the performance can be confirmed through construction management data recorded during sheet pile installation. Objective of this study aims to propose a practical method to assure impervious performance of the joints. Development and proposal of the quality control method to ensure the impervious performance was attempted based on a previous study to find a correlation between performance confirmation for sampled joints and their construction management data. To identify sheet piles overloaded during installation, cross-sectional image of those data drawn along the sheet pile wall is useful in the quality control.
