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A platform for research: civil engineering, architecture and urbanism
Complex deep foundation pit supporting stand column underpinning system and construction method
The invention relates to a complex deep foundation pit supporting stand column underpinning system and a construction method. The construction method comprises the steps that according to the position of a stand column to be underpinned, a steel pipe penetrates through a steel sleeve on a connecting ring plate and is driven to a design position; a plurality of sections of underpinning stand columns are machined; the hoops shaped like the Chinese character'ji 'are oppositely pulled, clamped and fixed to the two sides of each support; the underpinning stand columns are installed; and the to-be-underpinned stand column is dismounted. The construction method has the beneficial effects that the construction speed is high, all the components are assembled on site, and the construction efficiency is improved; a to-be-underpinned stand column is replaced by an underpinned stand column between every two supports, a bottom foundation of the underpinned stand column is fixed through a steel pipe and a connecting ring plate in a penetrating and inserting mode, a steel pipe top structure is welded into a whole through steel bars, concrete is poured, and finally steel pipe post-grouting construction is conducted to improve the bearing capacity of the foundation. And the underpinning stand column and the support adopt an n-shaped hoop quick connection structure, so that the construction efficiency is improved.
本发明涉及一种复杂深基坑支护支撑立柱托换体系及施工方法，包括步骤：根据待托换立柱位置，将钢管穿过连接环板上的钢套筒打设到设计位置；加工数段托换立柱；将几字型抱箍对拉卡固在每道支撑的两侧；安装托换立柱；拆除待托换立柱。本发明的有益效果是：施工速度快，均在现场组装，提高了施工效率；通过每道支撑间的托换立柱代替待托换立柱，托换立柱的底部基础采用钢管与连接环板穿插固定，钢管顶部结构通过钢筋焊接成一体，并浇筑混凝土，最后进行钢管后注浆施工提高基础的承载力；托换立柱与支撑采用几字型抱箍快速连接结构，提高了施工效率。
Complex deep foundation pit supporting stand column underpinning system and construction method
The invention relates to a complex deep foundation pit supporting stand column underpinning system and a construction method. The construction method comprises the steps that according to the position of a stand column to be underpinned, a steel pipe penetrates through a steel sleeve on a connecting ring plate and is driven to a design position; a plurality of sections of underpinning stand columns are machined; the hoops shaped like the Chinese character'ji 'are oppositely pulled, clamped and fixed to the two sides of each support; the underpinning stand columns are installed; and the to-be-underpinned stand column is dismounted. The construction method has the beneficial effects that the construction speed is high, all the components are assembled on site, and the construction efficiency is improved; a to-be-underpinned stand column is replaced by an underpinned stand column between every two supports, a bottom foundation of the underpinned stand column is fixed through a steel pipe and a connecting ring plate in a penetrating and inserting mode, a steel pipe top structure is welded into a whole through steel bars, concrete is poured, and finally steel pipe post-grouting construction is conducted to improve the bearing capacity of the foundation. And the underpinning stand column and the support adopt an n-shaped hoop quick connection structure, so that the construction efficiency is improved.
本发明涉及一种复杂深基坑支护支撑立柱托换体系及施工方法，包括步骤：根据待托换立柱位置，将钢管穿过连接环板上的钢套筒打设到设计位置；加工数段托换立柱；将几字型抱箍对拉卡固在每道支撑的两侧；安装托换立柱；拆除待托换立柱。本发明的有益效果是：施工速度快，均在现场组装，提高了施工效率；通过每道支撑间的托换立柱代替待托换立柱，托换立柱的底部基础采用钢管与连接环板穿插固定，钢管顶部结构通过钢筋焊接成一体，并浇筑混凝土，最后进行钢管后注浆施工提高基础的承载力；托换立柱与支撑采用几字型抱箍快速连接结构，提高了施工效率。
Complex deep foundation pit supporting stand column underpinning system and construction method
复杂深基坑支护支撑立柱托换体系及施工方法
WANG HAIBIN (author) / XUE YUAN (author) / KONG XU (author) / SHI JIANHE (author) / ZHOU YONGHUI (author) / XU ZHOU (author) / DING YUQI (author) / XUE RUI (author) / SHANG HONGLI (author) / QIU TENGFEI (author)
2023-08-01
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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