STUDY ON THE IMPERVIOUS PERFORMANCE OF BOX-SHAPED STEEL SHEET PILE WITH CLAYEY GEO-MATERIAL

Abstract

 Box-shaped steel sheet pile with clayey geo-material has been constructed in order to apply as impervious seawall of the waste disposal site in coastal area. Box-shaped steel sheet pile has double joints where are sealed by water-swelling sealant, and it is secured a basic impervious performance. By filling the clayey geo-material into the chamber that sandwiched the joints as a fail-safe, the impervious performance of box-shaped steel sheet pile is improved. Field installation and permeability test for box-shaped steel sheet pile were conducted to demonstrate the workability and the impervious performance in the field. As results, breakage of box-shaped steel sheet pile did not occur during installation, and it was possible to install accurately. In addition, by simple method of observation on the change in water level, the impervious performance of box-shaped steel sheet pile was able to be evaluated easily.