摘要
南水北调是缓解中国北方水资源严重短缺局面的战略性工程。我国南涝北旱,南水北调工程通过跨流域的水资源合理配置,能大大缓解我国北方水资源严重短缺问题,促进南北方经济、社会与人口、资源、环境的协调发展,分东线、中线、西线三条调水线。工程沿线地质环境复杂,存在有害介质腐蚀和杂散电流腐蚀危害,必须采取有效的防腐措施,解决南水北调工程PCCP管线的腐蚀问题,提高工程安全和耐久性。本文通过PCCP管外防腐采用无溶剂型环氧煤沥青防腐涂层在保沧干渠项目的应用实例,总结了PCCP管无溶剂型环氧煤沥青外防腐涂层在工程施工中对材料选用、施工方法、补口及补伤、检验标准。
The South to North Water Diversion Project is a strategic project to alleviate the severe shortage of water resources in northern China.The South to North Water Diversion Project in China can greatly alleviate the serious shortage of water resources in northern China through cross basin rational allocation of water resources,promote the coordinated development of the economy,society,population,resources,and environment in the north and south.It is divided into three water diversion lines:the East Line,the Middle Line,and the West Line.The geological environment along the project is complex,and there are harmful media corrosion and stray current corrosion hazards.Effective anti-corrosion measures must be taken to solve the corrosion problem of PCCP pipelines in the South to North Water Diversion Project,and improve the safety and durability of the project.This article summarizes the material selection,construction methods,joint and damage repair,and inspection standards of the solvent-free epoxy coal tar pitch external anti-corrosion coating for PCCP pipes in the construction of the Baocang main channel project,based on the application example of the solvent-free epoxy coal tar pitch external anti-corrosion coating for PCCP pipes.
作者
毕研峰
于法鑫
孙晓伟
杨敦丞
毕士君
马征
BI Yan-feng;YU Fa-xin;SUN Xiao-wei;YANG Dun-cheng;BI Shi-jun;MA Zheng(Hebei Weicubic Technology Co.,Ltd.Tangshan 063205,China)
出处
《全面腐蚀控制》
2023年第12期116-122,共7页
Total Corrosion Control
关键词
南水北调
PCCP管
无溶剂型环氧煤沥青涂料
施工方法
检验标准
south-to-north water diversion
PCCP pipe
solvent free epoxy coal tar coating
construction methods
inspection standards
