the pipeline for the northern areas

摘要

1.the pipeline for the northern areas containing isolated pipe, u0441u043au0440u0435u043fu043bu0435u043du043du0443u044e u0445u043eu043cu0443u0442u0430u043cu0438 loaded with under the sphenoid forms, a fact that to improve the reliability by maintaining sustainability grounds, the last is in the form of a reinforced u043fu0435u043du043eu0441u0442u0435u043au043bu0430 and between them and the pipeline set the segmentwith the value of the clean box is determined from the u0441u043eu043eu0442u043du043eu0448u0435u043du0438u044fu0433u0434u0435 gamma density u0433u0440u0443u043du0442u043eu0432u043eu0433u043e solution; q - weight u043fu043eu0433u043eu043du043du043eu0433u043e meters of pipes with the product; q - weight u043fu043eu0433u043eu043du043du043eu0433u043e meters a; r is the outer radius of the pipes; additionally, the thickness of the reference u0441u0435u0433u043cu0435u043du0442u0430.2. in a pipeline 1, so that the segment is made of porous u0442u0435u043fu043bu043eu0438u0437u043eu043bu044fu0446u0438u043eu043du043du043eu0433u043e material, mainly u0441u043eu0442u043eu0441u0438u043bu0438u043fu043eu0440u0430.3. the pipeline for p.1, with the fact that, in order to reduce the u0440u0430u0441u0442u0435u043fu043bu0435u043du0438u044f soil tray outside with soft flammable insulation and isolation materials.