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A platform for research: civil engineering, architecture and urbanism
Back-off type annular grout containing cavity post-grouting device and grouting method
The invention belongs to the technical field of foundations, and relates to a back-off type annular grout containing cavity post-grouting device and method. The back-off type annular grout containing cavity post-grouting device comprises a grouting sleeve, an annular communicating pipe and a grout containing cavity; the multiple grouting sleeves are vertically arranged on the upper surface of the grout containing cavity in parallel. The slurry accommodating cavity is of a hollow circular ring structure; the slurry accommodating cavity is sleeved outside the annular communicating pipe; the annular communicating pipe is not in contact with the slurry accommodating cavity; a slurry outlet hole communicated with the interior of the slurry accommodating cavity is formed in the slurry accommodating cavity; a plurality of slurry outlet holes are formed; the grouting sleeve is communicated with the grout outlet hole through the annular communicating pipe and the interior of the grout containing cavity. According to the back-off type annular grout containing cavity post-grouting device and grouting method, multi-point grouting is achieved, the grouting reliability can be effectively guaranteed, and the pile foundation bearing capacity is greatly improved.
本发明属于地基基础技术领域，涉及一种倒扣型环形浆液容置腔后注浆装置及注浆方法，包括注浆套管、环形连通管以及浆液容置腔；注浆套管是多个，多个注浆套管并行竖向设置在浆液容置腔的上表面；浆液容置腔是中空式圆环结构；浆液容置腔套装在环形连通管外部；环形连通管和浆液容置腔之间非接触；浆液容置腔上设置有与浆液容置腔内部相贯通的出浆孔；出浆孔是多个；注浆套管通过环形连通管以及浆液容置腔内部与出浆孔相贯通。本发明提供了一种多点注浆、可有效确保注浆可靠性以及大幅提高桩基承载能力的倒扣型环形浆液容置腔后注浆装置及注浆方法。
Back-off type annular grout containing cavity post-grouting device and grouting method
The invention belongs to the technical field of foundations, and relates to a back-off type annular grout containing cavity post-grouting device and method. The back-off type annular grout containing cavity post-grouting device comprises a grouting sleeve, an annular communicating pipe and a grout containing cavity; the multiple grouting sleeves are vertically arranged on the upper surface of the grout containing cavity in parallel. The slurry accommodating cavity is of a hollow circular ring structure; the slurry accommodating cavity is sleeved outside the annular communicating pipe; the annular communicating pipe is not in contact with the slurry accommodating cavity; a slurry outlet hole communicated with the interior of the slurry accommodating cavity is formed in the slurry accommodating cavity; a plurality of slurry outlet holes are formed; the grouting sleeve is communicated with the grout outlet hole through the annular communicating pipe and the interior of the grout containing cavity. According to the back-off type annular grout containing cavity post-grouting device and grouting method, multi-point grouting is achieved, the grouting reliability can be effectively guaranteed, and the pile foundation bearing capacity is greatly improved.
本发明属于地基基础技术领域，涉及一种倒扣型环形浆液容置腔后注浆装置及注浆方法，包括注浆套管、环形连通管以及浆液容置腔；注浆套管是多个，多个注浆套管并行竖向设置在浆液容置腔的上表面；浆液容置腔是中空式圆环结构；浆液容置腔套装在环形连通管外部；环形连通管和浆液容置腔之间非接触；浆液容置腔上设置有与浆液容置腔内部相贯通的出浆孔；出浆孔是多个；注浆套管通过环形连通管以及浆液容置腔内部与出浆孔相贯通。本发明提供了一种多点注浆、可有效确保注浆可靠性以及大幅提高桩基承载能力的倒扣型环形浆液容置腔后注浆装置及注浆方法。
Back-off type annular grout containing cavity post-grouting device and grouting method
倒扣型环形浆液容置腔后注浆装置及注浆方法
HU YING (author) / SONG FEI (author) / NIE QILING (author) / LIU JUNHUA (author) / YANG JIANGUO (author) / ZHANG HENGDONG (author) / SUN PENG (author) / LI XIA (author)
2023-06-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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