High Voltage Power Line

drilled shaft slurry mix tanks

Nitro, West Virginia

 

Challenges:

    DFS was contacted by a contractor regarding a ongoing project in Nitro, West Virginia. The contractor needed to drill a single foundation shaft for a high voltage power line along the shores of the Kanawha River. Geotechnical reports showed the entire shaft consisted of fine sands, and silts. Slurry was utilized for its cost effectiveness and hydro-static head pressure to maintain hole integrity. The shaft diameter was 12 feet, and 92 feet deep. Casing was used for the first 25 feet of the shaft to build head pressure and we were successful in accomplishing the project with in schedule and budget.
       

     

    Solutions:

    • Built a slurry program based on the geotech reports. 
    • Mixed and added a high viscosity slurry to maintain head pressure and maintain hole integrity with groundwater and silts.
    • Drilled shaft was able to be accomplished within schedule and budget.