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山区、戈壁、崎岖陡坡、窄梁、滩涂、冻土、水区、公路和江河穿越等特殊地形对油气输送管道特别是管道外防腐层在施工和运营中的保护提出了重大技术挑战。文章介绍了国外的一种在固定或移动防腐涂敷厂施工成型的,可现场弯曲的管道“石夹克”机械保护涂层技术,论述了这种“石夹克”涂层的结构形式,它与其他管道机械保护方法的比较、工程应用范围及应用实例。
Special technical challenges such as mountainous areas, Gobi, rugged steep slopes, narrow beams, tidal flats, permafrost, water areas, roads and river traversals pose major technical challenges to the protection of oil and gas pipelines, especially pipe coatings. This paper introduces a kind of “curved jacket” mechanical protective coating technology which is applied in fixed or mobile anticorrosive coating plant in the foreign countries and discusses the structure of this “stone jacket” coating Form, its comparison with other pipeline mechanical protection methods, engineering applications and application examples.