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介绍了国内桥梁工程桩基础发展的概况和当前大直径桩施工方面所取得的巨大成就，总结了大直径桩基的特点、施工工艺上的难点及国内成功的解决方法。
This paper introduces the general situation of the development of pile foundation in China and the great achievements in construction of large diameter piles. The characteristics of large diameter pile foundation, difficulties in construction technology and solutions to domestic success are summarized.