DRILLING METHOD FOR MAKING A GROWN-BASED BARRIER IN THE GROUND, APPARATUS FOR CARRYING OUT SAID BARRIER AND BARRIER THUS OBTAINED

摘要

Method and drilling apparatus for producing a bar comprising at least one lateral protuberance. BR/ The apparatus (1) comprises a frame (2) and rotary milling drums (4) which can be pivoted about an axis pivot (7) substantially horizontal, perpendicular to their axes of rotation (8) and located in the vicinity of their upper parts. The milling drums (4) can thus protrude from one side or the other of the frame (2). BR/ The invention also relates to the bar thus obtained.