VESSEL FOR FORMING A TRENCH IN A WATER BOTTOM.

摘要

A vessel (1) for forming a trench in a water bottom (100) includes a ladder (2) and trenching elements mounted to the ladder (2). The trenching elements are formed by a first upwardly inclined auger (10) for forming a first inclined trench wall (101) and a second upwardly inclined auger (20, 20′) for forming a second inclined trench wall (102). The first auger (10) is arranged to be rotated to move material of the water bottom (100) in an upward direction along the first auger (10).