In this video, we demonstrate why the advancement ratio is crucial for determining the bearing capacity of screw piles.

Full-scale experiments conducted at Aalborg University clearly show that an incorrect advancement ratio (e.g. 0.5) can reduce the bearing capacity by up to 70% – even when soil conditions, pile geometry, and rotation speed remain identical.

– Torque alone is not sufficient to evaluate bearing capacity.

– Rotation speed influences torque measurements and can cause misleading results.

– Only by simultaneously measuring torque, advancement ratio, and rotation speed can a correct installation be documented.

That is why Pilar has developed a system that continuously monitors all three parameters, ensuring that screw pile installations can be documented accurately without performing a static load test on every single pile.