International Conference on Pipelines and Trenchless Technology 2013 (ICPTT 2013)

176 / 2013-04-30 20:09:25

Mechanical Response Analysis Of Pipeline Under The Action Of Floods

Flood, Pipeline, Mechanical model

It is very dangerous for the safety of the pipeline which crossing the complex place where the geological disasters occurred frequently in the rainy season or by the influence of floods. Therefore, the mechanical response analysis of the pipeline which is influenced by the floods is essential. According to the actual stress state in the pipeline project and the relationship with the surrounding soil, this paper study and build the corresponding static and quasi-static response analytically format. Some specific examples were calculated and analyzed by the strain-based safety assessment criteria, and the most dangerous point was identified. The influence law of different diameters, internal pressure and the material of the pipeline to the pipe-stress was investigated. The results show that the mechanical model which was established in this paper is coincide with the actual deflection and the analysis of the stress. And the change of the diameter of the pipe is the most sensitive factor to the stress of the pipe which is influenced by the floods.