基于液化后变形分析方法的地下管线上浮反应研究

Study on uplift behavior of pipelines based on post-liquefaction deformation method

摘要: 采用液化后变形分析方法模拟了饱和砂土地基地震时发生的液化流动,研究了地基中地下管线的上浮反应,讨论了管线直径、埋深、地下水位、地基土相对密度等因素对地下管线上浮位移的影响,并对地下管线抗震设计提出了一些建议。

Abstract: The post-liquefaction deformation method was used to simulate the liquefaction-induced flow of sand foundations and the uplift of buried pipelines.The effects of diameter and buried depth of pipelines,groundwater level and relative density of soil on the uplift behavior were studied.Some suggestions were presented for the seismic design of buried pipeline based on the analytic results.