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轻型空箱围堤对邻近桥梁桩基影响分析
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轻型空箱围堤对邻近桥梁桩基影响分析
摘要: 以嘉兴港海盐港区围堤与杭州湾跨海大桥的穿越段为例, 采用基于Mindlin 应力解的桩伐基础简化分析和三维弹性数值模拟两种方法, 探讨了嘉兴港海盐港区围堤对杭州湾跨海大桥桩基产生的负摩阻力和侧向推力. 通过分析比较, 简化分析方法与弹性三维数值模拟结果吻合较好, 说明应用简化分析方法得出的结果也可作为桩承式围堤结构基
础设计的参考依据.
关键词: 轻型空箱围堤; 围堤桩; 负摩阻力; 侧向推力
Abstract :Using a simplified method based on Mindlinstress solutions as well as 3-dimensional numerical analyses with elastic constitutive models , the negative skinfrictionandlateral push onthe piles for the Great Trans- oceanic Hangzhou Bay Bridge due to intersecting Jiaxing Port embankment are evaluated inthis paper . It indicates that the simplified method based on Mindlin stress solutions can be roughly adoptedto assess the negative skinfrictionandlateral push on piles due to adjacent pile foundations as it compares well with numerical analyses .
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