EXPERIMENTAL STUDY ON REDUCING THE AMOUNT OF SINKING BY HAMMOCK EFFECT UTILIZING EDGE RESTRAINT WITH SHELLS

Abstract

 It has been reported that the density-increasing effect and early dissipation of excess pore water pressure by short piles of crushed stone and the hammock effect of geosynthetics edge restraint by crushed stone can reduce the amount of sinking during liquefaction in thick sub-layered residential land. In recent years, as we are shifting to a recycling-oriented society, there has been research on the use of shells, a by-product of marine products, as a civil engineering material. In this study, focusing on the hammock effect, the applicability of using shells as edge restraints for geosynthetics and an effective hammock mechanism were verified through pull-out experiments and 1G-indoor shaking table model experiments. As a result, the applicability of shells as geosynthetic end-constraints and the effective hammock mechanism were clarified.