Abstract:
The environment the pipeline laid at is very complicated, mainly including the environment of the medium transported, operating environment, surrounding environment(buried or aboveground), physical environment and/or hazard environment as well as manufacture environment of pipe. By the action of these environments, the corresponding mechanics behaviors of pipeline, such as load behavior, deformation behav-ior, fracture behavior, fatigue behavior and corrosion behavior, will produce, To realize the economy and ra-tionality for pipeline engineering so as to make pipeling a long-term safe operation, the environment the pipeling laid at and the corresponding mechanics behaviors should be organically combined together during the design stage of pipeline. At this point, six technical measures in pipeline design are presented, that is, selecting pipeline route with rationality, selecting proper pipe, corrosion control, pipeling protection, construction control and daily care.