A Study on Infusion of Silica Micropaticles into Soil Particles

摘要

Reasonable infusion materials are investigated using white carbon inthis study. White Carbon, hereinafter written as WC, is aggregate silicamicro-particles and the size of independent particle is several tens μm indiameter. Although the effect of the liquefaction countermeasure methodusing WC is to increase the density of sandy ground by injecting it,regular WC is relatively too large to be injected into the ground.Therefore, regular WC has to be grinded into much finer particles inorder to grout them into sandy ground. In this study, a micro bubblegenerator was suggested to grind WC efficiently, utilizing thephenomenon of vortex breaking.In this paper, a series of grain size analysis of WC grinded by themicro bubble generator were conducted and infiltrating injection testsinjecting the grinded WC were carried out in order to examine thefeasibility of the WC injection method proposed. As a result, it wasconfirmed that the finer WC was able to permeate sandy ground.