a. Locate the position of the anchor hole and dig a trench of the required length and depth for
the log anchor. Dig this trench at right angles to, and centered on, the line of the proposed guy. Cut a
recess for the log at the bottom of the pole side of the hole. This recess will permit the log to bear
against solid earth.
b. Cut a slot in the earth for the anchor rod. If more than one anchor rod is to be attached to the
log anchor, place the attachments 12 inches (30.48 m) apart and widen the earth slot accordingly.
c. Assemble the anchor by placing the anchor log, a square washer, and the nut, in that order,
on the anchor rod. The size of the square washer depends on the size of the guy strand or combination
of guy stands to be anchored. Cut away the wood from under the square washer. Tighten the nut on the
anchor rod.
d. Lower the anchor into the anchor hole. Position the anchor rod; backfill and tamp the anchor
hole and the anchor rod slot.
e. Anchor logs may be set in line with proposed guy when plans for future excavations or
obstructions interfere with the normal installation. A plank or large stone should be placed against the
anchor hole well nearest the pole. The anchor log must be notched to permit the guy rod attaching
washers to bear evenly against the anchor log.
f. When the ground is soft and the log anchor might be pulled upward, heavy planks or logs
should be placed across the anchor log. These cross pieces must be at least twice as long as the diameter
of the anchor log.
11.
Installation of precast concrete anchors.
Precast concrete anchors are set in vertical anchor holes with slots cut for the anchor rods. The
method for digging the holes and setting the anchors is the same as that used for installing crossplate
anchors. The area of the concrete base should be the same as that of a crossplate anchor of
corresponding size.
12.
Installation of cast-in-place concrete anchors.
a. Determine the ground location of the proposed guy. Bore a 6-inch (15.24 cm) hole in the
earth for the anchor rod. Bore this hole in line with the proposed guy.
b. Measure the distance (S) (Figure 2-20) along the lead of the proposed guy. Bore two 8-inch
(20.32 cm) holes side by side at the end of the measured distance. Remove the dirt from between the
two holes to form one large hole for the anchor.
c. Place a square washer and nut on the anchor rod. Hold the washer in place against the nut by
wiring the washer and nut together. Position the anchor rod in the anchor-rod trench with the threaded
end of the anchor rod resting against the opposite side wall of the anchor hole. The lower end of the rod
must be from 12 to 14 inches (30.48 to 35.56 cm) above the bottom of the anchor hole.
2-23
SS0439
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