基于能量法的大直径超长钢管桩溜桩问题分析
发布时间：2019-07-25 15:18
【摘要】：海洋桩平台采用大直径超长桩,由于桩、锤的重量很大,沉桩过程中经常发生溜桩现象。因此为了便于打桩控制,判断溜桩的范围是非常必要的。结合实际工程对溜桩的过程和发生机理进行了探讨;利用PCPT原位测量资料,基于能量法建立了判断溜桩范围的分析计算方法。针对南海油田典型的平台桩沉桩过程中的溜桩问题进行了分析计算,验证了所提出的方法的合理性,可供桩设计以及沉桩施工参考。
[Abstract]:Large diameter and super long pile is used in offshore pile platform. Because of the large weight of pile and hammer, the phenomenon of sliding pile often occurs in the process of pile driving. Therefore, in order to facilitate the control of pile driving, it is very necessary to judge the range of pile slip. Combined with practical engineering, the process and occurrence mechanism of sliding pile are discussed, and an analysis and calculation method for judging the range of slip pile is established based on PCPT in situ measurement data and energy method. In this paper, the problem of sliding pile in the process of platform pile driving in Nanhai Oilfield is analyzed and calculated, and the rationality of the proposed method is verified, which can be used as a reference for pile design and pile driving construction.
【作者单位】： 天津大学建工学院;华电重工股份有限公司博士后科研工作站;
【基金】：国家自然科学基金资助项目(51322904;51279127;41372291)
【分类号】：P75;TU473.1
，
本文编号：2519169
[Abstract]:Large diameter and super long pile is used in offshore pile platform. Because of the large weight of pile and hammer, the phenomenon of sliding pile often occurs in the process of pile driving. Therefore, in order to facilitate the control of pile driving, it is very necessary to judge the range of pile slip. Combined with practical engineering, the process and occurrence mechanism of sliding pile are discussed, and an analysis and calculation method for judging the range of slip pile is established based on PCPT in situ measurement data and energy method. In this paper, the problem of sliding pile in the process of platform pile driving in Nanhai Oilfield is analyzed and calculated, and the rationality of the proposed method is verified, which can be used as a reference for pile design and pile driving construction.
【作者单位】： 天津大学建工学院;华电重工股份有限公司博士后科研工作站;
【基金】：国家自然科学基金资助项目(51322904;51279127;41372291)
【分类号】：P75;TU473.1
，
本文编号：2519169
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