大直径深桩基施工一直都是工程的重难点,桩基施工质量对于工程整体质量与安全,都具有重要的影响.本文主要研究冲积盆地软土地基大直径深桩基施工关键技术,以解决软土地基桩基的技术难题,掌握软土地基桩基的先进设计理论、设计方法、施工技术、试验技术和安装技术,为冲积盆地桥梁建设提供技术理论支持及设备选型科学依据.%The construction of large-diameter deep pile foundation has always been a heavy and difficult task. The quality of pile construction has an important impact on the overall quality and safety of the project.This paper mainly studies the key technology of large-diameter deep pile foundation construction in soft soil foundation of alluvial basin to solve the technical problems of pile foundation in soft ground, to master the advanced design theory, design method, construction technology, test technology and installation technology of pile foundation in soft soil foundation, providing technical support for the bridge construction in the alluvial basin and scientific basis for equipment selection.
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