Abstract: Method for mounting a pipe (3, 4) into a soil in which case the pipe (3, 4) is intended to be left in a hole drilled in the soil in which method the drilling of the hole is performed by using hollow drill rods (1) attached sequentially to each other the diameter of which hollow drill rods is essentially similar to the diameter of the drilled hole and the hollow drill rods (1) are essentially empty from the drilling equipment during the drilling and the mentioned pipes (1) are adjusted to convey both rotating motion and propulsive force to a drill head (9,10). The pipework (3),(4) staying in the soil is mounted into the hole by pulling the pipework to the drill head with the help of a plunger (7) pushed by a pressurized medium in which case the drill rod pipework (1) functions as a cylinder for the mentioned plunger (7) and that finally the hollow drill rods (1) are pulled out of the hole and the pipework and the plunger (7) are left in the hole.

Abstract: The invention relates to a device for use in replacing particularly sewage piping by using a forced inserting method, the device comprising an impact member (3) provided with a drawing tip (2), and a reamer (12) breaking the pipe (1)to be replaced, the rear portion of the reamer comprising means for fastening the pipe (4) to be inserted, the supply hoses (5) for the driving medium of the impact member (3) being conducted through the pipe (4) to be inserted. To increase the possibilities of using forced inserting, the device according to the invention is characterized in that at least one other tip (7) is attached to the reamer (12) by means of an arm (6) projecting sideways from the reamer for laying another pipe (8).