FIELD: machine building.
SUBSTANCE: invention relates to pipeline transport, namely to trenchless recovery of gravity-flow pipelines. Proposed method comprises inserting repair pipe into pipeline section ahead of that to be recovered. Aforesaid pipe features cross section repeating that of the pipeline to be recovered and sizes smaller by at least 5% compared to those of the latter. Aforesaid repair pipe represents single modules, each jointed with previous one to make a stalk. Note that the first single module is fixed relative to opened pipeline section, while subsequent modules are fixed relative to free end face of the first module on moving the stalk along the pipeline. Modules are inserted after the stalk covers the entire area of pipeline section to be repaired.
EFFECT: simplified method.
8 cl, 6 dwg
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