| 穿越回填河谷及河床管线的动力特性 |
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| 引用本文： | 梁建文.穿越回填河谷及河床管线的动力特性[J].天津大学学报(英文版),1995(1). |
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| 作者姓名： | 梁建文 |
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| 摘 要： | 通过求解半无限空间表面二维半圆截面回填河谷对ＳＨ地震波的散射和士与管线的动力相互作用，对穿越回填河谷及河床管线进行了动力分析。模型虽简单，但定性地解释了这两类震害现象。结果表明，回填河谷对管线的动力性状有巨大影响，该影响取决于地震波的频率、波长和河谷宽度等因素；管线的破坏不仅会发生在回填土的交界面上，还会出现在河谷回填土的中部；如果管线穿越河床，管线的破坏将发生在与河谷底部相应的地方。
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| 关 键 词： | 管线，回填河谷，河床，动力特性，土与管线动力相互作用 |
DYNAMIC ANALYSIS OF PIPELINES LAID THROUGH ALLUVIAL VALLEY |
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| Liang Jianwen.DYNAMIC ANALYSIS OF PIPELINES LAID THROUGH ALLUVIAL VALLEY[J].Transactions of Tianjin University,1995(1). |
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| Authors: | Liang Jianwen |
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| Institution: | Dept. of Civil Eng. |
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| Abstract: | This paper describes the dynamic characteristics of pipelines laid through alluvial valleys. We assume that the alluvial valley has a semi-cylindrical cross-section. The ground motion of alluvial valley under harmonic seismic SH waves is carried out, and the pipeline-soil dynamic interaction is taken into account. Though simple, the model may qualitatively explain the earthquake damages of pipelines laid through an alluvial river valley. |
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| Keywords: | pipeline alluvial valley dynamic analysis pipeline-soil interaction ground motion |
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