Pre-Drilling for Sheet Pile

One common question we get at Hammer & Steel is whether or not one should pre-drill when driving sheet pile. Based on this, we have developed a list of conditions that may justify pre-drilling.

• Ground conditions are hard enough to slow production or cause sheets to fan out.
• Ground conditions are too hard for thin sheets and pre-drilling is cheaper than using thicker sheets.
• Using a larger vibro hammer could drive the sheets in but may damage the interlocks or tear the top of the sheets.
• Ground layers are sloped to the extent that sheets want to follow and not stay straight.

If these conditions exist, pre-drilling around the interlocks can have many benefits:

• A reduction in the surface friction and/or tip resistance.
• An increase in production rates.
• A reduction (or avoidance) in damage to sheet piles.
• A straighter pile wall as pre-drilled holes act as guides.
• The ability to see what is in the ground rather than relying on a bore log report.

The multi-purpose ABI Mobilram quickly changes from drill to pile presser and is the ideal piece of equipment for turning these benefits into cost savings for your company.

More information on the Mobilram.