| 往复荷载作用下软粘土中浅埋管道的稳定性的振动台模型试验研究 |
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| 引用本文： | 闫澍旺,王金英.往复荷载作用下软粘土中浅埋管道的稳定性的振动台模型试验研究[J].海洋工程,1998(4). |
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| 作者姓名： | 闫澍旺 王金英 |
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| 作者单位： | 天津大学(闫澍旺)，中海石油开发工程设计公司(王金英) |
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| 摘 要： | 软粘土在波浪荷载作用下，可能发生强度软化，使埋设在软粘土层中的海底管道的受力状态或支撑条件发生变化，从而出现上浮或下沉的趋势，对管道的稳定性发生影响。本文通过在振动台上进行的模型试验来模拟当土性因动荷作用而发生变化时管道的稳定情况，对这个问题进行了探索，得出了一些规律性的认识，可供海底管道的设计者参考。
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| 关 键 词： | 海底管道 软粘土 波浪荷载 强度软化 稳定性 |
RESEARCH ON INSTABILITY OF MARINE PIPELINES BURIED IN SOFT CLAY UNDER CYCLIC LOADING BY MODEL TESTING ON THE VIBRATING TABLE |
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| Yan,Shuwang.RESEARCH ON INSTABILITY OF MARINE PIPELINES BURIED IN SOFT CLAY UNDER CYCLIC LOADING BY MODEL TESTING ON THE VIBRATING TABLE[J].Ocean Engineering,1998(4). |
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| Authors: | Yan Shuwang |
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| Abstract: | Some marine pipelines have to be buried in soft clay layers for safety considerations.During a storm, the soft clay may be softened under the cyclic loading induced by the wave force.The reduction of the strength of the soil may change the state of the stability of the pipelines buried in it or even induce upward or downward moment of the pipelines. This paper deals with the problem by performing model tests with a vibrating table. Some interesting results obtained may interest the pipeline designers. |
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| Keywords: | marine pipelinges softclay wave force softening stability |
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