Micropile with
Casing Reinforcement
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Micropile with
Steel Bar Reinforcement
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Micropiles are installed using water flush rotary drilling or rotary percussion drilling techniques. Measuring
between 6 and 12 inches in diameter, micropiles consistently achieve capacities of 20 to 100 tons, with special
installations of up to 200 tons.
Drilled micropiles offer the same high bearing capacity as driven steel piles, with the added advantage of capability
of installation within areas presenting difficult access and low headroom. Micropile drilling methods generate minimal
disturbance or vibration to adjacent structures, making micropiles an excellent underpinning alternative.
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Bobsled/Luge Foundation Project
Mount Van Hoevenberg
Lake Placid, New York
A drilled micropile foundation system consisting of over 1,300 micropiles was designed and constructed upon the
mountainside through dense glacial till and hard underlying bedrock, to support a state-of-the-art refrigerated
luge, bobsled and skeleton racing track.
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