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在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。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。
In the large-scale directional drilling through the river project, how to strengthen the effective protection of pipeline coatings through the pipeline construction and safety of an important part of the latter part of the safe operation. Taking the successful application of epoxy FRP outer protective layer technology in directional drilling of Yangtze River as an example, the performance characteristics, construction technology and test methods of this technology are introduced, which can provide references for the design and construction of subsequent large-scale directional drilling drilling.