D
D
B
L
H
Figure 3 Dimensions of excavated hole for buried poles
Figure 4 Dimensions of drilled hole for buried poles using an auger
2. Backfilling of buried poles The backfilling mix should have a composition of soilcrete 1:10, based on standard soil condition of 150kPa. Backfilling the pole hole should be done in layers of 250mm and compacted with a hand-rammer. The soil should be compacted evenly around the pole, and care should be taken that the pole does not lean to one side during compacting. Continue the backfill and compacting process until the hole is filled. If a stepped hole was used the same applies, and the entire hole must be filled and compacted.
Compact backfill in 250mm layers
D
L/H
Figure 5 Backfilling and compacting the hole
18 BEKAPOLE
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