ABSTRACT
There are many occasions when it would be desirable to be able to add strength to a soil formation. For clays this can be done by preconsolidating (overloading). For granular materials, other procedures are available, including densification and grouting. If the fluids (air or water) in the soil voids are replaced by a solid, it becomes more difficult for the individual soil grains to undergo relative displacements, thus adding shear resistance (or strength) to the soil mass. This additional strength may be useful in preventing the movement of material from under loaded zones, in increasing the bearing capacity and the slope stability of grouted formations, and in reducing settlements in zones adjacent to or above excavations. Figures 10.2, 10.3, and 10.4 illustrate some of these applications of grouting.
