Figure 2-15. Log anchor installations.
h. Concrete anchors. Concrete anchors (Figure 2-16) may be used when the materials and
facilities for mixing concrete are available. These anchors are suitable for use under most guying
conditions. However, firm soils are required for cast-in-place concrete anchors.
i. Permafrost anchors. Permafrost anchors consist of standard anchor rods equipped with
square washers. Permafrost anchors are suitable for use only at locations where the anchor rod will
extend into permanently frozen soil for at least one-half of the rod length.
Selection of anchors and anchor rods. The size of the anchor selected for use at any guy location
depends upon the load on the guy. The type of anchor selected for use depends upon the equipment
available for installing the anchor. Table 2-2 lists the types of anchors available and the type of soil in
which they are to be installed.