Selection Table

Selection Table – English Canada (.Pdf)

Model Project Type Maximum Bearing Capacity Lateral Capacity6 Factored Bending Resistance
Compression1 2 4 5 Tension1 3 4
SLS7 ULS8 SLS7 ULS8 SLS
lb kN lb kN lb kN lb kN lb kN ft-lb kN-m
P1
Ø 48.3 mm
(1.9 po)
Light Residential
(deck without roof, stairs, etc.)
6 800 30 9 520 42 3 400 15 4 760 21 500 2.2 1 010 1.4
P2
Ø 60.3 mm
(2.4 po)
Medium Residential and Light Commercial
(deck, carport, sunroom, single-story residential addition, etc.)
11 000 49 15 400 69 5 500 24 7 700 34 1 000 4.4 1 785 2.4
P3
Ø 88.9 mm
(3.5 po)
Heavy Residential, Light to Medium Commercial and Industrial
(two-story residential addition, cottage, sign, carport, solar panel, new construction, underpinning, boardwalk, tie-back, etc.)
33 750 150 47 250 210 16 875 75 23 625 105 2 250 10 6 454 8.8
P4
Ø 101.6 mm
(4 po)
Heavy Residential, Light to Medium Commercial and Industrial
(cottage, sign, light post, solar panel, new construction, boardwalk, tie-back, bollard, etc.)
45 000 200 63 000 280 22 500 100 31 500 140 2 700 12 9 057 12.3
P3-HD
Ø 88.9 mm
(3.5 po)
Heavy Residential, Light to Heavy Commercial and Industrial
(new construction, underpinning, tie-back, etc.)
45 000 200 63 000 280 22 500 100 31 500 140 2 250 10 9 411 12.8
P4-HD
Ø 101.6 mm
(4 po)
Heavy Residential, Light to Heavy Commercial and Industrial
(new construction, retaining wall, tie-back, etc.)
50 625 225 70 875 315 25 313 113 35 438 158 2 700 12 13 165 17.9
P5
Ø 141.3 mm
(5.6 po)
Heavy Residential, Light to Heavy Commercial and Industrial
(cottage, sign, light post, new construction, boardwalk, solar panel, bollard, retaining wall, etc.)
50 625 225 70 875 315 25 313 113 35 438 158 4 500 20 21 507 29.2
P6
Ø 168.3 mm
(6.6 po)
Heavy Residential, Light to Heavy Commercial and Industrial
(sign, light post, new construction, solar panel, bollard, retaining wall, etc.)
50 625 225 70 875 315 25 313 113 35 438 158 5 625 25 33 876 45.9

 

Notes

  1. The bearing capacity values in the selection table are an indication and must be validated on-site according to the soil conditions encountered and the driving torque attained during installation.
  2. The compression load capacity (SLS) is determined by the driving torque which is provided by the installation equipment when installing the piles.
  3. The tension load capacity is obtained according to the driving torque which is attained during installation and according to the penetration depth of the pile. For tension applications, contact the TMP Engineering Department.
  4. The maximum compression/tension loads presented in the selection table to limit the settlement to 12 mm (1/2 inch).
  5. When the helical pile is laterally unsupported (very loose/soft soil, liquifiable soil, water and wind), the structural strength of the pile must be approved by the TMP Engineering Department.
  6. The lateral capacity values are just indicative. They are based on dense granular soil, a free head condition of the pile, an above-ground height of the piles of 150 mm (6 inches) and with the application of only a lateral load. For applications with lateral loads, contact the TMP Engineering Department.
  7. The compression load capacity (SLS) values are based on a minimum safety factor of 2 on the ultimate geotechnical resistance.
  8. Factored ultimate geotechnical resistance at ULS.

Comments

  • For all technical questions, please contact the TMP Engineering Department at 418 338-8735, or via email at eng@technometalpost.com
  • Larger diameter Techno Metal Post piles can be used for applications requiring a lateral or bending resistance higher than shown in the selection table.