Geoscience Reference
In-Depth Information
Fig. 15.20. Injection of colloidal silica liquid through multiple tubes into sandy ground
Fig. 15.21. Excavation of soil mass as solidifiedby silica grouting
Fig. 15.22. Soil improvement under existing structure
the visual observation of seeping was made easy by dyeing the liquid with green color.
Figure15.25verifiestheideaofuniformseeping.Thisextentofuniformseepingisequiv-
alent with that of water which is demonstrated by red color in Figure15.26. Moreover,
Figure15.27 indicates that the colloidal silica liquid can seep uniformly even into sandy
ground with gravel layer inspiteof the permeability contrast.
