A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Post-grouting device outside pile foundation and post-grouting reinforcement method
The invention relates to the technical field of building foundations, and provides a post-grouting device outside a pile foundation and a post-grouting reinforcement method.The post-grouting device outside the pile foundation comprises a grouting pipe and a core pipe; first grout outlets distributed at intervals in the length direction of the grouting pipe are formed in the side wall of the grouting pipe; the core pipe is arranged in the grouting pipe; the bottom of the core tube is closed; the core tube is connected with two sealing structures which are distributed at an interval along the length direction of the core tube; a second slurry outlet is further formed in the side wall of the core pipe, and the second slurry outlet is located between the two sealing structures; the core pipe can move in the length direction of the grouting pipe so that the second grout outlets can communicate with the different first grout outlets. By using the post-grouting device and the post-grouting reinforcement method outside the pile base body, the problem that the reinforcement effect is limited due to the fact that the pile pressing force is difficult to improve due to the influence of field factors in an existing foundation reinforcement method adopting an anchor rod static pressure pile can be solved.
本发明涉及建筑基础技术领域，提供了一种桩基体外后注浆装置及后注浆加固方法，其中桩基体外后注浆装置包含注浆管和芯管；所述注浆管的侧壁设置有沿其长度方向间隔分布的第一出浆口；所述芯管设置于所述注浆管内部；所述芯管上部开口底部封闭；所述芯管上连接有沿其长度方向间隔分布的两个密封结构；所述芯管侧壁还设置有第二出浆口，所述第二出浆口位于两个密封结构之间；所述芯管能够沿所述注浆管的长度方向移动进而使所述第二出浆口能够分别和不同的所述第一出浆口连通。使用该桩基体外后注浆装置及后注浆加固方法，能解决现有的采用锚杆静压桩的基础加固方法受现场因素影响难以提高压桩力，导致加固效果有限的问题。
Post-grouting device outside pile foundation and post-grouting reinforcement method
The invention relates to the technical field of building foundations, and provides a post-grouting device outside a pile foundation and a post-grouting reinforcement method.The post-grouting device outside the pile foundation comprises a grouting pipe and a core pipe; first grout outlets distributed at intervals in the length direction of the grouting pipe are formed in the side wall of the grouting pipe; the core pipe is arranged in the grouting pipe; the bottom of the core tube is closed; the core tube is connected with two sealing structures which are distributed at an interval along the length direction of the core tube; a second slurry outlet is further formed in the side wall of the core pipe, and the second slurry outlet is located between the two sealing structures; the core pipe can move in the length direction of the grouting pipe so that the second grout outlets can communicate with the different first grout outlets. By using the post-grouting device and the post-grouting reinforcement method outside the pile base body, the problem that the reinforcement effect is limited due to the fact that the pile pressing force is difficult to improve due to the influence of field factors in an existing foundation reinforcement method adopting an anchor rod static pressure pile can be solved.
本发明涉及建筑基础技术领域，提供了一种桩基体外后注浆装置及后注浆加固方法，其中桩基体外后注浆装置包含注浆管和芯管；所述注浆管的侧壁设置有沿其长度方向间隔分布的第一出浆口；所述芯管设置于所述注浆管内部；所述芯管上部开口底部封闭；所述芯管上连接有沿其长度方向间隔分布的两个密封结构；所述芯管侧壁还设置有第二出浆口，所述第二出浆口位于两个密封结构之间；所述芯管能够沿所述注浆管的长度方向移动进而使所述第二出浆口能够分别和不同的所述第一出浆口连通。使用该桩基体外后注浆装置及后注浆加固方法，能解决现有的采用锚杆静压桩的基础加固方法受现场因素影响难以提高压桩力，导致加固效果有限的问题。
Post-grouting device outside pile foundation and post-grouting reinforcement method
一种桩基体外后注浆装置及后注浆加固方法
MO ZHENLIN (author) / YI XIANG (author) / YUAN YONGQIANG (author) / XIAO YANG (author) / YANG SHAOPENG (author) / CHEN HAOQI (author) / PENG XIAOJUN (author) / ZHOU QIJIAN (author) / PENG RAN (author) / WANG YU (author)
2023-11-14
Patent
Electronic Resource
Chinese
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