| 地震荷载沉箱码头大变形分析的离散元法初探 |
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| 引用本文： | 王桂萱,陈雄,宋力.地震荷载沉箱码头大变形分析的离散元法初探[J].海洋工程,2004,22(4):131-136. |
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| 作者姓名： | 王桂萱 陈雄 宋力 |
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| 作者单位： | 大连大学,土木建筑工程系,辽宁,大连,116622 |
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| 摘 要： | 探讨了应用离散元分析方法求解地震荷载下沉箱和背后填土大变形问题的可能性，开发了能描述沉箱的平面形状及沉箱与土体摩擦特性的矩形单元。并通过简单实例分析了地震时沉箱码头的变形，再现了沉箱码头地震灾害的发生过程，为沉箱在地震情况下的大变形分析提供了一种新途径。比较了两种沉箱模型对分析结果的影响，提出了相应的方法。
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| 关 键 词： | 矩形单元 离散元 沉箱 地震荷载 大变形分析 |
| 文章编号： | 1005-9865(2004)04-0131-06 |
| 修稿时间： | 2003年11月5日 |
Large deformation analyses of concrete caisson quay wall subjected to earthquake loading by using distinct element method |
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| WANG Gui-xuan,CHEN Xiong,SONG Li.Large deformation analyses of concrete caisson quay wall subjected to earthquake loading by using distinct element method[J].Ocean Engineering,2004,22(4):131-136. |
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| Authors: | WANG Gui-xuan CHEN Xiong SONG Li |
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| Abstract: | The possibility of using distinct elements in solving large deformation seismic response of concrete caissons and backfills is discussed. A rectangular element is developed to present box caisson geometry shape and soil frictional behavior. As a numerical example, seismic response of a concrete caisson quay wall is analyzed. The method presented here can be used as a new solution to the large deformation of the caisson due to earthquake loading. Two computational models are compared in order to study effects of distinct element types on the numerical results. |
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| Keywords: | rectangular element distinct elements caisson earthquake large deformation analysis |
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