In dense clusters, the jacking of adjacent piles can cause previously installed piles to "heave," potentially damaging the structural integrity or reducing end-bearing capacity. Monitoring and pro-active measures like pre-boring or relief wells are often necessary.
The method is virtually vibration-free and has very low noise levels compared to driven piles, making it ideal for congested areas like residential developments. In dense clusters, the jacking of adjacent piles
Once refusal is reached, the force is released to zero and immediately reapplied without pause. The movement between these two stages is measured. In dense clusters