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九江长江公路大桥跨越长江,其过渡墩、辅助墩及北侧副孔桥桩基在长江航道和河内侧河滩范围内,属深水桩基施工。通过采用冲击钻成孔施工技术、优化泥浆指标、改进清孔和灌注水下混凝土的方法,有效地保证了施工质量、进度和安全等,以此为背景,归纳、总结该施工技术,为今后桥梁建设中深水桩基础的施工起到指导和借鉴意义。
Jiujiang Yangtze River Highway Bridge across the Yangtze River, its transitional pier, auxiliary pier and the north side of the bridge pile foundation in the Yangtze River waterway and the river within the riverbank, is a deep-water pile foundation construction. Through the use of percussion drilling into the hole construction technology, optimization of mud indicators, to improve clearance and pouring underwater concrete methods to effectively ensure the construction quality, progress and safety, on the basis of this, summarized and summarized the construction technology for the future The construction of deep-water pile foundation in bridge construction plays a guiding and referential significance.