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p 68
APPENDIX 2A
HELICAL PRODUCT RATINGS, PROPERTIES AND DETAILS
Chapter 2
Helical Foundation Systems
HA175 Helix Plate Net Bearing Areas
H-Style Plates
Plate
Diameter
(inches)
Area
(ft
2
)
6
0.18
8
0.33
10
0.52
12
0.76
14
1.05
16
1.38
V-Style Plates
(1)
Plate
Diameter
(inches)
Area
(ft
2
)
6
0.16
8
0.29
10
0.46
12
0.67
14
0.92
16
1.20
(1)
V-Style plates feature a special cut on the leading edge (or cutting edge). This edge is cut at two successive 45° angles to roughly simulate
a spiral. This is in addition to the 45° bevel on the leading edge which is a standard feature for helix plates of both styles. V-Style plates are
appropriate for use in applications where rocky or rubble-filled soils are anticipated, or where very dense layers need to be penetrated.