PENETRATION METHOD OF STEEL PIPE PILE

摘要

PROBLEM TO BE SOLVED: To provide a smooth penetration method capable of properly and easily controlling the pushing force and pushing rate of a steel pipe pile, and surely preventing the falling or breakage of the steel pipe pile generated in penetration. SOLUTION: Required pushing force F and pushing rate V by a pushing and returning cylinder to be worked on the steel pipe pile in penetration are preliminarily calculated from the geology, penetration depth, diameter of steel pipe pile and the like every penetration scheduled position of steel pipe piles. The pressure of oil acting on the rod side of the pushing and returning cylinder is adjusted to work the pushing force F onto the steel pipe pile, and the oil flow rate on the head side of the pushing and returning cylinder is adjusted to set the pushing rate of the steel pipe pile to the above pushing rate V.