The Alaska Pipeline

Introduced briefly in the paper is the general view of the Alaska Pipeline, America, pointing out, with emphasis, that it was foresight to have put the following consideration in the first place during the initial stage of pipeline construction: environmental protection, protection of wild animals and plants as: well as ecological balance. The writers provide a detail analysis on the method of manufacturing pipes for the pipeline, pipe requirements for chemical elements, specification for pipe mechanical strength and the codes specially worked out for the pipeline.The originality is analyzed through comparing with API 5L Standard and the retated Chinese standards for long distance pipelines with the introduction of the charachteristics of the Alaska Pipeline's crossing the four different kinds of permafrost horizens in cold areas, based on which the writers also spend lines on the design phylosophy, construction methods, the structure type of certain VSM supports and their special structural diagrams for burying.