MHT1649-7B Transition Helical Pile

MHT1649-7B Transition Piles 274 Ton Ultimate Capacity

MHT1649-7B Transition Piles offer significant increase in lateral capacity and all the advantages of MAGNUM® Helical Piles. MAGNUM® products are manufactured in the USA according to our ISO 9001 approved Quality Program. Our Helical Transition Piles utilize large diameter top segments and rigid bolted couplings. This, to join smaller diameter extensions and the lead section, extending the helical bearing plates down to the desired bearing stratum. This provides increased lateral and overturning capacity. Ideal for deep soil formations. Structural capacities are developed according to AISC 360 and ICCAC358 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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Additional information

Shaft

Helices

5/8˝ Thick, Helix Die-Pressed ASTM A36, or Better 12", 14", 16", 20", 24", 30" & 36" Diameters Available
Coating

Pitch

6"
Ultimate Capacity-to-Torque Ratio

3.9 ft-1
Maximum Installation Torque

140,300 ft-lbs
Capacity by Torque

274 Tons Ultimate Capacity 137 Tons Allowable Capacity
Structural Capacity

280 Tons Ultimate Capacity 140 Tons Allowable Capacity

Description

MHT1649-7B Transition Piles, 274 Ton Ultimate Capacity, shall be installed to appropriate depth into suitable bearing stratum. This to be determined by geotechnical engineer or local practice. Capacity by torque is based on advancing pile 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.

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