Selection Table

Selection Table for Helical Piles According to the Foundation Load.

Selection Table – Europe (.Pdf)

Model Project Type Maximum Bearing Capacity Lateral Capacity5 Factored Bending Resistance
Compression2 3 4 Tension1 2
SLS6 ULS7 SLS8 ULS7 SLS
(kN) (kN) (kN) (kN) (kN) (kN-m)
P1
Ø 48.3mm
(1.9 in)		 Light Residential
(deck without roof, stairs, etc.)		 30 42 15 21 2.2 1.4
P2
Ø 60.3 mm
(2.4 in)		 Medium Residential and Light Commercial
(deck, carport, sunroom, single story residential addition, etc.)		 49 69 24 34 4.4 2.4
P3
Ø 88.9mm
(3.5 in)		 Heavy Residential, Light to Medium Commercial and Industrial
(two-story residential addition, cottage, sign, carport, solar panel, new construction, underpinning, boardwalk, tie-back, etc.)		 150 210 75 105 10.0 8.8
P4
Ø 101.6mm
(4 in)		 Heavy Residential, Light to Medium Commercial and Industrial
(cottage, sign, light post, solar panel, new construction, boardwalk, tie-back, bollard, etc.)		 200 280 100 140 12.0 12.3
P3-HD
Ø 88.9mm
(3.5 in)		 Heavy residential, Light to Heavy Commercial and Industrial
(new construction, underpinning, tie-back, etc.)		 200 280 100 140 10.0 12.8
P4-HD
Ø 101.6mm
(4 in)		 Heavy Residential, Light to Heavy Commercial and Industrial
(new construction, retaining wall, tie-back, etc.)		 225 315 113 158 12.0 17.9
P5
Ø 141.3mm
(5.6 in)		 Heavy Residential, Light to Heavy Commercial and Industrial
(cottage, sign, light post, new construction, boardwalk, solar panel, bollard, retaining wall, etc.)		 225 315 113 158 20.0 29.2
P6
Ø 168.3mm
(6.6 in)		 Heavy residential, Light to Heavy Commercial and Industrial
(sign, light post, new construction, solar panels, bollard, retaining walls, etc.)		 225 315 113 158 25.0 45.9

 

Notes

  1. The tension load capacity can be attained, conservatively, by halving the values of compression bearing capacity. Contact the TMP Engineering Department for tension applications.
  2. The maximum compression/tension load (SLS) shown in the selection table limit the settlements to 12 mm.
  3. The maximum compression bearing capacity (SLS) is determined by the maximum torque applied by the installation equipment.
  4. When the helical pile is laterally unsupported (very loose/soft, liquefiable soils, water current, or wind),the structural resistance of the helical pile must be approved by TMP Engineering Department.
  5. Lateral capacity shown is based on dense soil with free head condition. Contact the TMP Engineering Department for other conditions.
  6. SLS values are based on a minimum safety factor of 2 on the ultimate geotechnical resistance.
  7. Factored geotechnical resistance at ULS.

Comments

  • Larger Techno Metal Post can be used for applications requiring a lateral or bending resistance higher than shown in the selection table.
  • For any technical questions, please contact the TMP Engineering Department.