Overweight PHC tubular pile core filling structure based on PSB and construction method of overweight PHC tubular pile core filling structure: Fid-Bau Portal

Overweight PHC tubular pile core filling structure based on PSB and construction method of overweight PHC tubular pile core filling structure

GAO XIAOFENG / GONG WENJUN / JU YIWEI / YANG LIN / ZHOU CHANGLIN / LI ZHANGYIN / ZHOU YONG / HUANG YAOTING / BI JUNXIANG / PENG LIANG

Abstract

The invention belongs to the technical field of PHC pipe pile construction, discloses an overweight PHC pipe pile core filling structure based on PSB and a construction method thereof, and aims to solve the problems that an existing PHC pipe pile core filling structure is long in construction period and high in cost. The device comprises a plugging block, a brush and a plurality of cutting teeth are mounted on the outer circumferential surface of the plugging block, and the cutting teeth are located below the brush; the upper end of the plugging plate is sleeved with a grout stopping ring, a first PSB finish rolling threaded steel bar is fixedly installed in the middle of the plugging block, a second PSB finish rolling threaded steel bar is further installed on the plugging block, and the first PSB finish rolling threaded steel bar is provided with driving equipment used for driving the first PSB finish rolling threaded steel bar to rotate and ascend and descend. On the premise of reducing the labor intensity of workers, the core filling efficiency of the PHC pipe pile can be improved, the construction period can be shortened, and meanwhile the core filling cost can be reduced.

本发明属于PHC管桩施工技术领域，公开了一种基于PSB的超重PHC管桩填芯结构及其施工方法，为了解决现有PHC管桩填芯存在着施工周期长以及成本高的问题。本发明包括封堵块，封堵块的外圆周面上安装有毛刷和若干切割齿，所述切割齿位于毛刷的下方；所述封堵板的上端套设有止浆环，所述封堵块的中部固定安装有第一PSB精轧螺纹钢筋，所述封堵块上还安装有第二PSB精轧螺纹钢筋，所述第一PSB精轧螺纹钢筋配有用于带动第一PSB精轧螺纹钢进行转动和升降的驱动设备。本发明在降低人工劳动强度的前提下，能够提高PHC管桩填芯的效率、缩短施工周期，同时还能够降低填芯的成本。

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