FIELD: construction industry.
SUBSTANCE: invention relates to construction and is used for trenchless replacement of old underground pipelines. A method for trenchless replacement of underground pipelines is proposed, including a destructive effect on the old pipeline 7, pressing its fragments into the surrounding soil by passing a working organ 8 through the old pipeline and tightening a new pipeline 9 behind it with a tension cable 6. The old pipeline 7 is destroyed to its bottom, which is used as a base for laying a new pipeline 9, while the tension cable 6 is placed in the old pipeline 7, centering it relative to the new pipeline 9 and the working body 8, to which a groove-shaped guide element 14 is attached, the lower surface of which is placed in the same plane with the lower surface of the new pipeline 9.
EFFECT: guaranteed accuracy of laying and simplification of the process of laying a new pipeline.
1 cl, 1 dwg
