METHOD FOR LINING UNDERGROUND PIPELINES

摘要

Method for renovation of pipelines, comprising introduction of a lining pipe into an existing pipeline, said lining pipe having a length corresponding to the length to be renovated, and consisting of a fusible polymer in a folded condition and unfolding of the lining pipe in order to line the pipeline. The lining pipe is built up by introducing lining layer (1, 4, 5, 6, 7, 8, 9) into the pipeline to be lined, which layers are pressurised and successively fused together by subjecting each layer (1, 4-9) to fusion heat from a heat-source (3), which is carried along the inside of the innermost layer of lining built up so far.