Drilling and Grouting as a Versatile Tool at Boone Dam-Video

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Video Summary

Boone Dam’s karst limestone foundation, steeply inclined bedding, and erodible soils made internal erosion a significant concern. Extensive drilling and grouting identified vulnerable zones and informed the design of a concrete secant-pile cutoff wall, placed to extend below known or suspected erodible features. Slurry-cell testing helped assess construction risks, while additional drilling and coring verified the wall and its joints. The project involved thousands of grout stages and extensive drilling, with most activity concentrated in the upper weathered-rock zone. A searchable, detailed record of the work now supports long-term dam monitoring, future assessments, and investigations of any emerging concerns.

Keywords

Boone Dam

karst limestone

internal erosion

secant-pile cutoff wall

grouting and drilling