| 钻井船插桩对导管架平台群桩影响的CEL有限元分析 |
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| 引用本文： | 何启洪,赖禺,周松望.钻井船插桩对导管架平台群桩影响的CEL有限元分析[J].海洋工程,2016,34(6):123-130. |
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| 作者姓名： | 何启洪 赖禺 周松望 |
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| 作者单位： | 中海石油(中国)有限公司恩平油田群联合开发项目组，深圳 518067;中海石油(中国)有限公司恩平油田群联合开发项目组，深圳 518067;中海油田服务股份有限公司物探事业部，天津 300451 |
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| 摘 要： | 采用CEL大变形非线性有限元方法并结合非线性地基梁模型对海洋石油941钻井船在番禺10-2平台钻井插桩时对邻近导管架平台群桩的影响进行了分析,并得到以下结论:1)钻井船插桩过程中,桩身最大位移及出现的位置随钻井船插桩深度增加而下移且钻井船插桩位置与群桩距离越近,对桩的影响越大;2)在插桩过程中,桩身最大弯矩出现的位置与桩身最大位移出现的位置一致,而桩身最大剪力出现的位置较桩身最大弯矩出现的位置偏下;3)与没有插桩影响的群桩相比,桩身最大弯矩与桩身最大剪力明显增加。
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| 关 键 词： | 钻井船插桩 导管架平台 插桩影响 CEL方法 群桩基础 |
CEL FEM analyzsis on effects of spudcan penetration on piles of an jacket platform |
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| HE Qihong,LAI Yu and ZHOU Songwang.CEL FEM analyzsis on effects of spudcan penetration on piles of an jacket platform[J].Ocean Engineering,2016,34(6):123-130. |
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| Authors: | HE Qihong LAI Yu and ZHOU Songwang |
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| Institution: | Enping Oilfields Joint Development Project PMT, CNOOC (China) Ltd., Shenzhen 518067, China;Enping Oilfields Joint Development Project PMT, CNOOC (China) Ltd., Shenzhen 518067, China;Geophysical-China Oilfield Service Limited, Tianjin 300451, China |
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| Abstract: | The CEL FEM and nonlinear foundations beam model are used to analyze the horizontal effects of the spudcan penetation of Haiyangshiyou 941 Jack up Rig on piles of the jacket platform in PY10-2 oil field. The conclusions are as follows: 1) The maximum pile displacement and the depth of the maximum pile displacement increase with the process of spudcan penetration. The closer the distance of the spudcan and piles is, the greater the effect is; 2) During the spudcan penetration, pile head is the maximum moment positon and the position of the maximum moment of pile is consistent with the position of the maximum displacement of pile. The position of the maximum combined shear force is deeper than that of the maximum moment; 3) Consistant with the piles without the effect of penetration, the maximum moment and the maximum displacement increase evidently. |
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| Keywords: | spudcan penetration jacket platform effects of the spudcan penetration CEL method pile group |
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