The method of lowering the pile-GRB system, based on the principle of compact construction equipment for construction on inclined surfaces (sloping roofs) or even if the site is obstructed above, it is still guaranteed safe and environmentally friendly. Especially in the case of limited static construction such as under bridges, etc. the selection of special-use pile presses for the scene has an extremely low altitude to thoroughly reduce the size of the machine. , will allow construction to be completed without obstructing traffic.