FIELD: replacement of defective pipes lines without digging-out trenches. SUBSTANCE: first, well is made by means of self-moving end-piece compacting the soil; then rope is passed through this well; ends of rope are secured on winch and on working member. Rope is pulled through defective pipe line breaking it and forming well into which new pipe line is passed. EFFECT: enhanced reliability and accuracy of laying the pipe line. 4 cl, 3 dwg
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