环氧玻璃钢外防护层技术在长江定向钻穿越中的应用

摘要

大型江河的定向钻穿越工程中，如何加强对穿越管道防腐层的有效保护是穿越管道施工和后期安全运行的重要环节。文章以环氧玻璃钢外防护层技术在长江定向钻穿越中的成功应用为例，介绍了该技术的性能特性及施工工艺、检验方法，为后续大型江河定向钻穿越工程的设计和施工提供参考。%The directional drilling crossing in the large river projects,how to strengthen the effective protection of crossing pipeline anticorrosive coating construction and safe operation is an important link in the future. This article mainly talks about example of the Epoxy glass fiber reinforced plastic outer protective layer of technology in the successful application of directional drilling crossing of the Yangtze River,Introduces the technical performance index and installation technology,inspection method,application effect. This can provide the reference to large rivers of directional drilling crossing engineering in design and construction.