一、前言“八三工程”(即大庆至抚顺输油管线),是我国第一条距离最长,口径最大的输油管线,北起大庆油田,横穿东北三省,到辽宁省抚顺市,全长667公里。管线沿途通过60多公里低洼沼译地带,穿过30余条大小河流,河面累积总宽度达8公里。此外,还有稻地、旱田、丘陵地带,以及杂散电流严重的抚顺矿 I. Introduction The “83 Project” (ie, Daqing to Fushun Pipeline) is the first longest-distance and largest caliber oil pipeline in our country. It starts from Daqing Oilfield in the north and crosses three northeastern provinces to Fushun City, Liaoning Province, 667 kilometers. The pipeline passes through more than 60 kilometers of low-lying marshland transiting area and passes through more than 30 rivers and streams with an accumulated total river width of 8 kilometers. In addition, there are paddy fields, dry land, hilly areas, and stray current serious Fushun mine