Examining how UMA Geotechnical employed duplex drilling on a challenging anchoring project
UMA used duplex drilling to advance both casing and drill steel into each hole simultaneously to keep them from collapsing at a ground anchoring project in the Winston-Salem area
UMA, under its subcontract with Kernersville, North Carolina-based National Bridge Builders, installed 14 ground anchors on the two retaining walls that were being held in place by the span that was to...
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