| 摘要 |
<p>The invention relates to a device for depositing rocks at a defined location on the bottom of a water mass. The device comprises a vessel, a fall pipe which extends with a substantial vertical component and which is connected at its upper end to the vessel by a gripper, and supply means for supplying rocks for depositing to the upper end of the fall pipe, wherein the gripper comprises a support construction for the fall pipe adjustable at an angle to the vertical direction by means of fall pipe angle adjusting means. The invention also relates to a method for depositing rocks from a vessel at a precisely defined location on the bottom of a water mass to be performed with the device.</p> |
