Offshore steel pipe pile sinking process

The offshore steel pipe pile sinking technology specifically comprises the steps that S1, a steel pipe pile is put down through a crane, perpendicularity measurement is conducted on the steel pipe pile, and the perpendicularity of the steel pipe pile is adjusted according to the perpendicularity deviation; s2, positioning the pile sinking device; s3, the driving set is started to drive the steel pipe pile to vibrate up and down, vibration is stopped after vibration continues for 5-10 min, the total station conducts perpendicularity measurement on the steel pipe pile, and the perpendicularity of the steel pipe pile is adjusted according to the perpendicularity deviation; s4, starting the first hydraulic driving cylinder, inching for 2-3 hammers, pausing for 10-15 seconds, continuing inching for 2-3 hammers after no abnormity exists, pausing for 10-15 seconds again, repeating for 3-4 times, measuring and observing data of the pile body, and adjusting the posture of the pile body; and S5, after the steel pipe pi