中国港湾建设

钢管板桩结合的新型码头结构形式的基桩施工工艺

作者：曾青松王福强薛瑞龙

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出版年,卷(期):页码：2012,40(5):47-49

摘要：

随着船舶大型化和施工工艺水平的提高，一种新型结构类型———钢管板桩组合结构逐渐得到较广泛的应用，
但由于桩基施工困难，通常仅应用于砂土或中等硬度黏土地基。文中介绍了一种以桩内旋挖取土的“打挖结合”的
沉桩工艺，可实现直径2 m的钢管桩穿透厚度6~9 m平均标准贯入击数大于80耀120 击的砂砾石胶结土层，可满足组
合结构的精度要求及设计要求的入土深度，该工艺具有很强的现实意义和工程价值，可以为类似的工程提供借鉴。

With the development of large -scale ship and improvement of construction technology，a new type of steel
tubular-sheet pile combined structure has been used widely. This structure is only used for sand soil or medium-hard clay
foundation caused by construction difficulties of pile foundation. This paper introduces a named “combined driving with
excavating” pile sinking technology，which has rotary drilling for soil in pile. It is realizable to use 2 m diameter steel pipe
pile to penetrate gravel glued layer，which is 6-9 m thickness，and has more than 80~120 blow count of SPT. It can achieve
the accuracy and design requirements of penetration depth. The technology has practical significant and engineering value as
well as it sets up a good example for other similar engineering works.

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