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断层是埋地管道在强震区的主要威胁,管道在断层作用下将产生较大的拉压应变而失效。通过调研国内外断层作用下埋地管道应变分析的相关研究,分别从解析分析、数值模拟、试验研究3个方面论述了国内外的研究进展,尤其是近年来国外在试验研究方面的突破。通过对比分析评述了目前的研究趋势,指出了国内外对于断层作用下管道应变分析研究的差距。结合工程实际需求,提出了断层作用下管道应变研究方法的不足和今后的发展方向。
Faults are the main threat to buried pipelines in strong earthquakes. Pipelines will produce large tension-compression strains and fail due to faults. Through the research on the strain analysis of buried pipeline under the action of faults at home and abroad, the research progress at home and abroad are discussed from the aspects of analytical analysis, numerical simulation and experimental research respectively, especially in foreign countries in recent years. Through comparative analysis, the current research trends are reviewed, and the gap between the domestic and international research on pipeline strain analysis under fault action is pointed out. Combined with the actual needs of the project, this paper puts forward the deficiency of the research method of pipeline strain under fault and the future development direction.