A METHOD IN PILING TUBULAR BASES, A COMBINED DRILLING AND PILING RIG, AS WELL AS USE OF THE DRILL HAMMER OF SAID RIG

摘要

The invention relates to a method in or relating to piling of e.g. tubular bases which are placed and, possibly, casted within a hole drilled out in earth mass in ground or the like. One uses a generally known drilling rig, in which a bit (30) is assigned a drilling hammer (28), and drills a hole having a depth approximately corresponding to the base pipe. If there exists a need for piling, the drill string is swung aside, away from the hole, after having been pulled up, and one or, possibly, a plurality of piles (42) is/are rammed down with a starting point at the bottom level of the bore hole. In order to drive the pile(s) (42) down, the drilling hammer (28) of the drilling rig is used.