Table 2-2. Anchor types recommended for different soil classes.
a. Soil classes. The ability of an anchor to hold the guy and the simplicity of anchor installation
will vary in different types of soils. The types of soils are divided into eight classes, based on moisture
content as well as the composition of the soil itself. The soil classes are-
(1) Class 1. Hard rock, solid.
(2) Class 2. Shale, sandstone, or trap rock; solid in adjacent layers or shattered in subsoil.
(3) Class 3. Hard, dry, hardpan.