Helical Pile MH740
Helical Pile
Helical Pile MH850

MH3525U Helical Piles 42 Ton Ultimate – 21 Ton Allowable Capacity

MAGNUM® Helical Piles offer a number of unique advantages as shown below. MAGNUM® products are manufactured in the USA according to our ISO 9001 approved Quality Program. Our Helical Piles utilize rigid bolted couplings to join extension sections and the lead section, extending the helical bearing plates down to the desired bearing stratum. Structural Capacities are developed according to AISC 360 and ICC-AC358 considering buckling of 5 ft unbraced length after 75 years of corrosion in moderate to high aggressive soils. Various coatings, custom lengths and helix configurations are available upon request. See Magnum Technical Reference Manual for additional information.

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Description

Helical piers shall be installed to appropriate depth into suitable bearing stratum as determined by geotechnical engineer or local practice. Capacity by torque is based on advancing pier to maximum installation torque. A minimum factor of safety of 2.0 is recommended for determining allowable capacity from correlations with final installation torque. Deflections of 0.5" are typical at allowable capacity; a higher factor of safety may be required to achieve smaller deflections. For tension capacity, helical bearing plates must be deeply embedded (5 ~ 7 x ave. helix diameter or as specified by geotechnical engineer). Load tests are recommended when practical.

Additional information

Shaft

Helices

3/8" Thick, Helix Die-Pressed ASTM A36, or Better 10", 12", 14", 16", 20 & 24" Diameters Available
Coating

Pitch

3"
Ultimate Capacity-to-Torque Ratio

7 ft-1
Maximum Installation Torque

13,700 ft-lbs
Capacity by Torque

48 Tons Ultimate Capacity 24 Tons Allowable Capacity
Structural Capacity

48 Tons Ultimate Capacity 24 Tons Allowable Capacity

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