High pressure water jetting can increase pored water pressure around pile toe and create temporarily status that soil particles are moved easily. At the same time, upstreaming water flow reduces skin friction of pile and reduces interlock resistance by washing out soil inside interlock. Therefore Press-in with Water Jetting reduces penetration resistance, and enables the pile installation to be conducted with adequate press-in force.
Press-in with Water Jetting
Mechanism of Water Jetting Mode