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A platform for research: civil engineering, architecture and urbanism
Soft soil vibro-replacement gravel pile top reinforcing device and method
The invention discloses a soft soil vibro-replacement gravel pile top reinforcing device and method. The soft soil vibro-replacement gravel pile top reinforcing device comprises a positioning device and a grouting pipe. The positioning device comprises two half assembled circular rings, the diameter of an inner ring circular hole is larger than that of the vibroflot and smaller than the pile diameter, the positioning device serves as a vibroflot falling channel, and the outer ring diameter is larger than the prepared pile diameter and can be stably arranged around a ground pile hole. Grouting pipe mounting holes are symmetrically formed in the periphery of the inner ring and used for mounting grouting pipes. The device can be used in cooperation with conventional construction equipment such as a vibroflot, a positioning device is arranged on the ground after hole forming so as to fix the position and depth of the grouting pipe, grouting is started after gravel filling is completed, grouting and pipe pulling are conducted at the same time, cement grout and gravel at the shallow position of the pile top are evenly mixed, and the construction efficiency is improved. And the shallow position of the gravel pile which is prone to bulging damage is reinforced. The reinforcing method can greatly improve the overall strength of the vibro-replacement gravel pile, meanwhile, the construction cost is saved, the depth of the grouting pipe can be adjusted according to the engineering condition, and flexibility is high.
本发明公开了一种软土振冲碎石桩桩顶加固装置及方法，该装置包括定位装置和注浆管；定位装置为两半可装配的圆环内环圆孔直径大于振冲器直径且小于桩径，作为振冲器下落通道，外环直径大于拟制桩径可平稳设置在地面桩孔周围。内环周围对称设置注浆管安装孔用于安装注浆管。本发明装置可与常规施工设备如振冲器等配合使用，成孔后在地面设置定位装置以固定注浆管的位置和深度，待碎石料填充完成后开始注浆，边压浆边拔管，使水泥浆液与桩顶浅部位置的碎石料均匀混合，对易发生鼓胀破坏的碎石桩浅部位置进行加固。该加固方法能大大提升振冲碎石桩的整体强度，同时节省施工成本，可根据工程情况调整注浆管深度，灵活性强。
Soft soil vibro-replacement gravel pile top reinforcing device and method
The invention discloses a soft soil vibro-replacement gravel pile top reinforcing device and method. The soft soil vibro-replacement gravel pile top reinforcing device comprises a positioning device and a grouting pipe. The positioning device comprises two half assembled circular rings, the diameter of an inner ring circular hole is larger than that of the vibroflot and smaller than the pile diameter, the positioning device serves as a vibroflot falling channel, and the outer ring diameter is larger than the prepared pile diameter and can be stably arranged around a ground pile hole. Grouting pipe mounting holes are symmetrically formed in the periphery of the inner ring and used for mounting grouting pipes. The device can be used in cooperation with conventional construction equipment such as a vibroflot, a positioning device is arranged on the ground after hole forming so as to fix the position and depth of the grouting pipe, grouting is started after gravel filling is completed, grouting and pipe pulling are conducted at the same time, cement grout and gravel at the shallow position of the pile top are evenly mixed, and the construction efficiency is improved. And the shallow position of the gravel pile which is prone to bulging damage is reinforced. The reinforcing method can greatly improve the overall strength of the vibro-replacement gravel pile, meanwhile, the construction cost is saved, the depth of the grouting pipe can be adjusted according to the engineering condition, and flexibility is high.
本发明公开了一种软土振冲碎石桩桩顶加固装置及方法，该装置包括定位装置和注浆管；定位装置为两半可装配的圆环内环圆孔直径大于振冲器直径且小于桩径，作为振冲器下落通道，外环直径大于拟制桩径可平稳设置在地面桩孔周围。内环周围对称设置注浆管安装孔用于安装注浆管。本发明装置可与常规施工设备如振冲器等配合使用，成孔后在地面设置定位装置以固定注浆管的位置和深度，待碎石料填充完成后开始注浆，边压浆边拔管，使水泥浆液与桩顶浅部位置的碎石料均匀混合，对易发生鼓胀破坏的碎石桩浅部位置进行加固。该加固方法能大大提升振冲碎石桩的整体强度，同时节省施工成本，可根据工程情况调整注浆管深度，灵活性强。
Soft soil vibro-replacement gravel pile top reinforcing device and method
一种软土振冲碎石桩桩顶加固装置及方法
YING HONGWEI (author) / ZHOU DINGWEN (author) / YAN XUZHENG (author) / ZHOU JIAN (author) / HAN HUACHAO (author) / ZHENG HUIFENG (author)
2023-04-11
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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