one of the most important elements of the project design of each project is considered. In the meantime satisfy the requirements of the Regulations of the utmost importance. Pipelines often for economic reasons, aesthetic, safety and environmental reasons underground dumped into landfills. In certain circumstances it may be necessary pipelines above ground is mentioned, but this case is rather unusual. Generally, oil pipelines and gas pipelines are entirely designed and executed, while water pipelines are designed for pipelines piece. Vital arterial system and equipment thereof, certain services provided in modern life, but they need to evaluate the seismic performance of modern industrial areas are clear. In this study, we tried the seismic performance of gas pipes buried in the soil with different densities to be examined finite element method and compared them.
