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Case study published: Water-powered drilling installed micro piles at the Corvette Museum

Water-powered DTH drilling was the optimal choice when drilling in the sensitive karst formation.

On February 12, 2014, a sinkhole opened under the National Corvette Museum, causing a portion of the floor to collapse and swallow eight one-of-a-kind Corvettes. Decision was made to salvage the cars and to repair and reinforce the ground that was damaged by the sinkhole.

The total repair includes 72 micropiles, drilled to an average depth of 42 m (140 ft.)
Water-powered DTH drilling was the optimal choice when drilling in the sensitive karst formation.

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The case study as PDF