Suspended Oil Pipeline Stress Sensitivity Analysis

Buried oil pipelines can traverse hundreds of kilometers of terrain with varied environmental and geotechnical conditions, such as through earthquake prone areas. These areas experience ground subsidence, which can lead to pipelines being suspended. The suspended segment of pipeline may result in pipeline rupture. Suspended oil pipeline stress safety usually has two contributing factors: the length of the suspended segment and water buoyancy. To research the influence that the two contributing factors cause on the stress of suspended pipelines, suspended pipeline stress needs analyzing using analysis software CAESAR II. Research shows that the buoyancy of water is more sensitive, and suspension pipe length of oil pipe is relatively small. This paper als provides some reference results for pipeline safety management.