High Capacity

The MacLean Excalibur Displacement and Pressure Grouted Piles are large diameter pipe piles that utilize a bolted or threaded coupler system. These piles are available with installation torque capacities ranging from 26,000 ft-lbs to over 200,000 ft-lbs and standard available material strengths of 80 and 100 ksi.

Piles are installed using common hydraulic rotary equipment. These deep foundation elements can provide axial capacities ranging from 180 to over 1,100 kips.

Our Pressure Grouted Displacement Piles are installed by pumping grout through the ID of the pile and exiting at grout ports placed at the pile tip while it is advanced through the soil by the hydraulic rotary equipment. This results in a steel shaft encapsulated in a grout column which can better resist lateral and moment loads as well as provide increased axial load resistance.

Each component, from the shaft to the grout column, is custom sized to fit your project’s specifications.

 

Displacement Piles

Catalog Number Pipe OD (in) Wall Thickness (in) weight per ft Allowable Compression and Tension Capacity (kips) Maximum Installation Torque (ft-lbs) Estimated Kt factor (ft-1)
H76 7-5/8 0.500 38 537 150,000 3.9
H96 9-5/8 0.545 54 746 250,000 3.1
H45 4.5 0.290 13.5 184 35,000 6
H55 5.5 0.415 23 318 65,000 5
H70 7 0.408 29 406 122,000 4

Pressure Grouted Displacement Piles

Catalog Number Pipe OD (in) Wall Thickness (in) weight per ft Maximum Installation Torque (ft-lbs) Grout Column Diameter (in) Estimated Grout Take (yd3 per ft) Max Allowable Compression Resistance FHWA (kips) Max Allowable Tension Resistance FHWA (kips)
G70 7 0.408 29 122,000 16 0.05 605 372
G76 7-5/8 0.500 38 150,000 18 0.07 782 492
G96 9-5/8 0.545 54 250,000 22 0.10 1,129 684
G45 4.5 0.290 13.5 35,000 12 0.03 304 169
G55 5.5 0.415 23 65,000 14 0.04 466 292

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