Mechanism of Effect

As the Press-in Method utilizes the reaction force from fully installed sheet piles to put a pile into the ground, control of the balance among "sheet pile (pile strength)", "the Silent Piler (press-in force)" and "ground (soil condition)" is a significant factor in design stage as well as construction stage. When installing piles into hard ground with dense granular soils, stiff cohesive soils or boulders, the balance can be kept by up-grading to a heavier pile section in combination with a greater press-in force. However, the cost of piles and construction work will go up as well. Another way to keep the balance is to reduce the press-in resistance. Lower press-in resistance requires lower press-in force. Primarily by enabling piles to be pressed into difficult soil conditions the auxiliary penetration system allows the essential balance to be maintained even with lighter piles. Additionally, the system can be utilized as a means to significantly improve productivity, quality of work and hence costs, as well as optimizing the pile section required. This is the mechanism of auxiliary penetration system.