Welding Proves Challenging On Aesgard-Europipe 11 Pipeline

摘要

Per Aarsleff, one of Denmark's leading civil engineering con-tractors, has successfully used its extensive pipeline welding and placing expertise on its most challenging contract so far to weld and place excep-tionally heavy sections of large diameter, extremely thick-walled cross-country gas pipeline in southwest Norway. The pipe, which is between two to six times thicker than a conventional gas pipeline, is so heavy and comparatively rigid that Per Aarsleff, using a combination of special beveling, induction heating and internal and external welding equipment, can only weld a few sections together into a short string at a time for the lifting and placing equipment to cope with the weight.