Anchors

In ground-anchored guys, the structure which attaches the guy-wire to the ground is called an anchor. The anchor must be adequate to resist the maximum tensile load of the guy wires; both the dead load of the tension of the wire and the maximum possible live load due to wind. Since the guy wire exerts its force at an angle, the anchor has both vertical and lateral (horizontal) forces on it. The anchor relies on the lateral shear strength of the soil to resist the forces from all of the guys attached to it. Guy anchors mostly get their pull-out resistance from dirt they have to displace rather than anchor weight. When anchor holes are drilled or bored all the old well-settled or compacted dirt is removed in a line towards the guy line pull direction. This type of anchor opens by driving a pipe down over the rod. The anchor end then expands out into the soil. It expands and locks in to the fresh undisturbed soil.