泥浆护壁成孔灌注桩后注浆技术正确应用研究

Study on Proper Application of Post-grouting Technology for Holing Cast-in-place Pile with Slurry Retaining

摘要:

为保证泥浆护壁成孔灌注桩后注浆技术正确应用，首先分析了后注浆技术对泥浆护壁灌注桩的作用机理以及天津地区的应用现状，然后通过对影响其应用效果的多种因素，如从业人员资格、成孔成桩质量、注浆阀、注浆泵、注浆相关参数等分析研究，提出相应的措施或建议。

Abstract:

In order to ensure the correct application of the post-grouting technology for the holing cast-in-place pile with slurry retaining, this paper analyzes the mechanism of post-grouting technology to the cast-in-place pile with slurry retaining hole and the application status, some corresponding measures or suggestions are put forward based on the analysis on the factors that affect the application effect, such as the qualification of the employees, the quality of the completed holes and piles, grouting valve, grouting pump and the relevant grouting parameters.