大直径超长钻孔灌注群桩基础关键技术研究

Study on Key Technology of Large-diameter Super-long Bored Cast-in-place Pile Group Foundation

摘要:

通过搜集近十几年来大直径超长钻孔灌注桩相关研究，对其在荷载传递机理、承载力影响因素、群桩效应、沉降计算理论，以及关键施工技术等方面进行系统的归纳与总结，并将结论应用于实际工程设计当中。其研究成果对工程设计人员开展大直径超长钻孔灌注群桩基础的设计工作具有一定指导价值，同时可以辅助科研人员开展相关的研究工作。

Abstract:

By collecting the relevant study on large-diameter super-long bored cast-in-place pile in recent ten years, its load transfer mechanism, bearing capacity influencing factor, pile group effect, settlement calculation, theory and key construction technology are systematically sorted out and summarized. And the conclusion is applied in the design of practical projects. Its study result has certain guiding value for the engineering designers in the design of large-diameter super-long bored cast-in-place pile group foundation, and can also assist the researchers in carrying out the relevant research work.