Pipelaying

摘要

A piggybacking clamp for subsea laying of two or more elongate elements in a piggybacked arrangement is disclosed. The piggybacking clamp has a plurality of clamp segments assembled to surround and clamp the elongate elements. Each clamp segment has two or more generally parallel mutually spaced recesses shaped to extend partially around respective ones of the elongate elements. The piggybacking clamp additionally has retainers that hold the clamp segments together when assembled, such that the assembled clamp segments apply clamping forces to the elongate elements in the recesses.

主权项

1. A piggybacking clamp for subsea laying of two or more elongate elements in a piggybacked arrangement, the clamp comprising:
a plurality of clamp segments assembled to surround and clamp the elongate elements, each clamp segment having two or more generally parallel mutually spaced recesses shaped to extend partially around respective ones of the elongate elements; and retainers that hold the clamp segments together when assembled, such that the assembled clamp segments apply clamping forces to the elongate elements in the recesses; wherein the retainers are male fixings on one of the plurality of clamp segments, which male fixings are received in complementary holes in another of the plurality of clamp segments with an interference fit that maintains the clamping forces by friction between the male fixings and internal surfaces of the holes.