Capacities of micropiles

Steel micropiles, also known as threaded tubes, are deep foundation elements constructed using high-strength, small-diameter steel casing and/or threaded bars.

Capacities of micropiles vary depending on the tube size and subsurface profile. Allowable capacities in excess of 1,000 tons have been achieved for threaded tubes. The tube generally has a diameter in the range of 73 to 219 mm.

Technology

The micropile technology can be combined with one or more of our other ground modification techniques to meet unique or complex project requirements cost-effectively and efficiently.

Micropiles can serve to “stitch” the soil together, within predicted shear zones, to enhance mass stability. In liquefiable profiles, micropiles can transfer loads to competent bearing strata to conform to design requirements.