FIELD: pipeline engineering.
SUBSTANCE: method comprises forming bottom surface at the section to be repaired by filling the hollow with an inert material packed into soft containers, laying continuous bottom mat made of strength cellular material on the surface so that the edges of the mat project out of the edges of the hollow by a distance of at least 5 meters, securing the vertical rods to the bottom mat, placing the inert material on the mat to provide hills, and overlapping the material with the continuous top coating. The edges of the bottom mat are secured to these of the top mat. The height of the material above the pipeline should exceed one meter.
EFFECT: enhanced reliability.
9 cl, 3 dwg
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