Selection of Shaking Table Test Similarity Relations for Long-distance Buried Pipeline

In view of the similarity relation selection problem of structures and soil in present underground structures shaking table test,taking a long-distance buried pipeline as a research object,according to the structural dynamics theory and the similarity theory,and using dimensional analysis method,we establish the dynamic similarity relation and design the model similitude relations.Then,the seismic performance of some long-distance buried pipeline,including the prototype and different similitude relations of pipe-soil model,is studied with numerical test.We analyze the dynamic effect of different pipe-soil models,and deduce the prototype response by the results of the model according to the similitude relations,and compare with the prototype calculating value,and then study the model and the prototype similarity relation deeply.Finally,the reasonable similarity relations of the shaking table test are proposed,which will be a foundation for the upcoming shaking table test of long-distance buried pipelines.