一种海上桩基的防护装置

本实用新型提供了一种海上桩基的防护装置，包括桩基立柱，还包括套设于桩基立柱外围的环形桩裙，环形桩裙具有与桩基立柱固定连接的弧形顶边和与海床面贴合的弧形底边，环形桩裙的截面由上至下呈朝向桩基立柱一侧凹陷的圆弧形结构；环形桩裙上设有若干个通孔。本实用新型所提供的一种海上桩基的防护装置中环形桩裙的截面呈朝向桩基立柱一侧凹陷的圆弧形结构，使得不同水位的洋流可以以均匀的流速到达桩基附近，避免由于水位速度差造成桩基立柱附近的逆流，该环形桩裙上开设有若干个通孔，洋流流体经过环形桩裙的通孔时形成漩涡，通过漩涡耗散洋流能量，达到在桩基立柱的前缘滞止点总压降低，进而从源头上降低马蹄涡的强度。

The utility model provides an offshore pile foundation protection device which comprises a pile foundation stand column and further comprises an annular pile skirt arranged on the periphery of the pile foundation stand column in a sleeved mode, and the annular pile skirt is provided with an arc-shaped top edge fixedly connected with the pile foundation stand column and an arc-shaped bottom edge attached to the seabed face. The section of the annular pile skirt is of an arc-shaped structure sunken towards one side of the pile foundation stand column from top to bottom. And a plurality of through holes are formed in the annular pile skirt. According to the protection device for the offshore pile foundation, the section of the annular pile skirt is of the arc-shaped structure which is sunken towards one side of the pile foundation stand column, so that ocean currents at different water levels can reach the position near the pile foundation at the uniform flow speed, and reverse flow near the pile foundation stand column due to the water level speed difference is avoided; a plurality of through holes are formed in the annular pile skirt, ocean current fluid forms vortexes when passing through the through holes of the annular pile skirt, ocean current energy is dissipated through the vortexes, the total pressure at the front edge stagnation point of the pile foundation stand column is reduced, and then the strength of horseshoe vortexes is reduced from the source.