The invention discloses a
submarine pipeline capable of restraining vortex-induced vibration. The
submarine pipeline is formed in the mode that the cross section of the lower end of a pipeline body is pulled upwards in a spiral mode through the center axis in the axial direction, the outer boundary of the cross section of the lower end is formed by end-to-end connection of six 60-degree arcs in the tangential direction, the six 60-degree arcs are the arc a, the arc b, the arc c, the arc d, the arc e and the arc f in sequence in the
clockwise rotation direction, the line connecting the circle center O1 of the arc a with the central point O of the lower cross section, the line connecting the circle center O2 of the arc c with the central point O of the lower cross section, and the line connecting the circle center O3 of the arc e with the central point O of the lower cross section are in the same length, and the included angles between the three lines are 120 degrees; a circle with a
radius of R=O1O2+O1A is made to be tangent to the circle O2 and the circle O3, O1A is the
radius of the arc a, the arc between tangent points is the arc d, and O2 serves as the circle center; a circle with a
radius R is made to be tangent to the circle O1 and the circle O3, and the arc between tangent points is the arc f; a circle with a radius R and O3 serving as the circle center is made to be tangent to the circle O1 and the circle O2, and the arc between tangent points is the arc b. The
submarine pipeline capable of restraining vortex-induced vibration is insensitive to incoming flow direction and excellent in flow-resistant strength and vibration restraining performance.