HORIZONTAL DIRECTIONAL DRILLING FOR EXPLORATION OF LOUISVILLE – SOUTHERN INDIANA RIVER BRIDGES EAST END NORTH AND SOUTH BOUND TUNNELS

摘要

The Lexington office of S&ME Inc. is performing horizontal directional core drilling,conventional vertical drilling, and surface and borehole geophysics to support the GeotechnicalBaseline Report for the Louisville-Southern Indiana Ohio River Bridges East End Tunnelproject. This innovative approach to obtaining the geotechnical data for the tunnel design hassaved taxpayers millions of dollars compared to the cost of an exploratory tunnel. In addition tocosts, the S&ME approach has been far less disruptive to the adjacent residential developments.This project represents the longest known use of this technology for a highway tunnel in theUnites States.