Project Information
A submerged structure at the downstream side of the dam had collapsed during the emergency repair work after heavy rains. It was determined that O-Pile® 35-321 was better to use instead of Z-type or U-type sheet pile due to its expansion tendency considering the hardness of the bedrock. The cost effectiveness and short lead time of O-Pile® played an essential role in preventing further degradation.
Interesting Facts
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The Challenge
Install a sheet pile wall with minimal vibration in front of the damaged nuclear power plant to fortify the plant against possible further dam breaches.
For Contractors
Having O-Pile® stock in standard 40' (12 m) lengths that can be drilled, impacted in, or vibro-hammered provides ultimate flexibility to adapt to a wide range of soil conditions and bending moment requirements. The ability to double butt join these segments on-site eliminates long waiting periods for specific lengths. O-Pile® 35-321 in X70 steel was specifically chosen for its compatibility with hard bedrock conditions, ensuring a reliable seal and stable installation even in challenging geological settings.
For Engineers
The O-Pile® design allows for expansion and minimal vibration, reducing potential risk to surrounding structures—particularly critical in a sensitive nuclear facility environment. O-Pile® 35-321's robust properties address both the vertical and lateral loads required to stabilize the dam's downstream side and prevent additional collapses.
For Owners
The cost-effectiveness and short lead time of O-Pile® proved invaluable for emergency work. By ensuring local availability, Sheet Pile, LLC could guarantee a rapid supply to prevent further degradation. This reliable, durable solution helps protect the plant infrastructure and the surrounding environment.
