輕型空箱圍堤對鄰近橋梁樁基影響分析

摘要: 以嘉興港海鹽港區(qū)圍堤與杭州灣跨海大橋的穿越段為例, 采用基于Mindlin 應力解的樁伐基礎簡化分析和三維彈性數(shù)值模擬兩種方法, 探討了嘉興港海鹽港區(qū)圍堤對杭州灣跨海大橋樁基產(chǎn)生的負摩阻力和側向推力. 通過分析比較, 簡化分析方法與彈性三維數(shù)值模擬結果吻合較好, 說明應用簡化分析方法得出的結果也可作為樁承式圍堤結構基
礎設計的參考依據(jù).

關鍵詞: 輕型空箱圍堤; 圍堤樁; 負摩阻力; 側向推力

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 .