| 桩承式围堤对邻近桥梁桩基的影响分析 |
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| 引用本文： | 吴兴龙,吴雅峰,梁民阳,李树巍.桩承式围堤对邻近桥梁桩基的影响分析[J].岩土力学,2008,29(7):2004-2008. |
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| 作者姓名： | 吴兴龙 吴雅峰 梁民阳 李树巍 |
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| 作者单位： | 浙江省钱塘江管理局勘测设计院，杭州 310016 |
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| 摘 要： | 桩承式围堤是将上部围堤或堆载荷重通过桩筏基础传递到深层较硬的土层，以减少由于围堤或堆载对邻近桩基产生负摩阻力和侧向推力的一种围堤式构筑物。采用基于Mindlin应力解的桩伐基础简化分析方法、弹性和弹塑性三维数值模拟了嘉兴港海盐港区围堤对杭州湾跨海大桥产生的负摩阻力和侧向推力。通过上述3种方法的分析比较，结果表明，采用的简化分析方法与弹性和弹塑性三维数值模拟结果吻合较好，可作为桩承式围堤结构基础的分析和设计方法。
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| 关 键 词： | 桩承式围堤 负摩阻力 侧向推力 简化分析 数值模拟 |
| 收稿时间： | 2006-09-29 |
Analysis of influence of piled embankment on adjacent piles for bridge abutments |
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| WU Xing-long,WU Ya-feng,LIANG Min-yang,LI Shu-wei.Analysis of influence of piled embankment on adjacent piles for bridge abutments[J].Rock and Soil Mechanics,2008,29(7):2004-2008. |
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| Authors: | WU Xing-long WU Ya-feng LIANG Min-yang LI Shu-wei |
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| Institution: | Reconnaissance & Design Institute of Qiantang River Administration, Hangzhou 310016, China |
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| Abstract: | Piled-raft foundations can be employed to transfer loads induced by embankments or surcharges to stiffer stratum through soft soil strata and thus to mitigate negative skin friction and lateral push on adjacent pile foundations such as bridge abutments. Using a simplified method based on Mindlin stress solutions as well as 3-dimensional numerical analyses with elastic and elastoplastic constitutive models, the negative skin friction and lateral push on the piles for the Great Trans-oceanic Hangzhou Bay Bridge due to intersecting Jiaxing Port embankment are evaluated. The results indicate that the simplified method based on Mindlin stress solutions can be adopted roughly to assess the negative skin friction and lateral push on piles due to adjacent pile foundations as it compares well with numerical analyses. |
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| Keywords: | piled embankment negative skin friction lateral push simplified analysis numerical modeling |
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