Method and apparatus for laying a pipeline, cable, etc, with automatic recording and checking of pipeline position within its trench before the trench is filled in

摘要

Method for placing a pipeline (2) in a trench (4) in which the time of positioning and exact position of the pipeline are recorded before the trench is filled in. The position can be compared with a reference element (32) and serves to correct the operating parameters of the tool used to place the pipeline in position. Once recorded, the position of the pipeline can be traced on a topographic plan. The invention also relates to a device for positioning a pipeline in a trench and recording its exact position.