关键词: 埋地管道, 多点非一致激励, 振动台试验

Abstract: Based on the failure characteristics of buried pipelines under multi-point non-uniform seismic excitation, the three-array shaking table test of underground pipelines under non-uniform excitation was developed and carried out for the first time. Firstly, according to the experimental conditions and purpose, the similarity ratio of the model system was determined, the suspensions continuum model box for the multi-array shaking test of long linear structure were designed and the location of the sensor were determined by special research. Secondly, the design of the model material selection, earthquake motion input and test loading system were analyzed. Finally, the dynamic characteristics and boundary effects of the continuum model box were analyzed. The experimental results show that the scheme design of the shaking table model test of the buried pipeline under the non-uniform excitation is reasonable. The research has laid a foundation for the development of the shaking table test of the buried pipeline under the non-uniform excitation and also have some reference value for similar experiments in the future.

Key words: buried pipeline, multi-point non-uniform excitations, shaking table test