MicropilesPRE-CONSTRUCTION PIERS, SINKHOLE REPAIR,SOIL & STRUCTURAL STABILIZATION

Micropiles

Micropiles are small diameter (usually less tan 12 inch diameter) drilled and grouted foundation elements with design loads ranging from 50 to 400 tons. The structural load is principally carried in steel reinforcement and transferred by friction into surrounding ground.

Micropiles support both tension and compression loading and are cast into pile caps for load transfer above grade structure. The piles tpically comprise a heavy forcing bar (up to 3.5 inch diameter) grouted in place with steel casing extending from pile cap to top of loading bearing soils.

Micropiles do not require removing spoils from the site. By combining both end-bearing on the helical plates and skin friction along the rough surface of the grout column, the result is a higher capacity pile system.

Features

• Proven engineered system

• Terminations for various applications

• Combines bearing and friction

• Extendable with bolted joint connection

Benefits

• Speed: 40-50 piles per day / per crew

• High capacity

• Predictable results

• Cost-effective

• Labor saving - smaller crews

• No pre-drilling

• Resistance to buckling in weak soils

• Stiffer pile (deflects less at a particular load)

• Additional corrosion protection in aggressive soils

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