挤扩桩和后注浆桩在某工程中的应用研究

Comparative Study on the Engineering Application of the Cast-in-situ Pile with Expanded Branches and Plates and the Post Grouting Pile

通过对扩底桩、支盘桩和后注浆桩三种桩型在同一工程场地的应用对比分析,结果证明,在该地区地质条件下,无论是从提高单桩承载力、减小沉降量,还是从施工质量控制、工程进度、造价角度分析,后注浆桩方案均优于扩底桩、支盘桩方案。

Based on the comparative study at the same project between cast-in-situ pile with expanded branches and plates and the post grouting pile, the results show that the post grouting pile can effectively improve the pile＇s bearing capacity and significantly deduce the pile settlement. It is also verified that the post grouting pile has more advantages in the construction quality and efficiency, and can save more considerable expenses than the cast-in-situ pile with expanded branches and plates.