埋于河床的管道与埋地管道一样,必须进行阴极保护。过去,曾认为保护复壁水下穿越管的耗电大,技术上困难多,未对水下复壁穿越管进行阴极保护。在确定提高佛渝线西彭至黄礞之间管道保护方案时,我们提出了:保护水下复壁穿越管应相似于保护 Buried in a riverbed, like a buried pipe, cathodic protection is required. In the past, it was considered technically more difficult to protect large volumes of water passing through tubes under doubly-cladded walls and did not provide cathodic protection against underwater doubly-walled tubes passing through them. In ascertaining the pipeline protection plan between Xi Peng and Huangpi in the Fushu-Yu Line, we proposed that: Protection of the underwater douban wall through the pipe should be similar to protection