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Immersed tube cast-in-place underwater final joint concrete pouring method
The invention relates to an immersed tube cast-in-place underwater final joint concrete pouring method which comprises the following steps: forming a dry construction environment through a steel sealing plate, so that dry construction operation can be carried out in an immersed tube underwater, and after a bottom plate, a side wall and a middle partition wall are poured, pre-burying a plurality of pumping pipes, a plurality of grouting pipes and a plurality of exhaust pipes when an inner mold of a top plate is erected, forming a top plate pouring space; top plate concrete is poured into the pouring space of the top plate through the pump truck in the immersed tube and the pre-buried pumping tube, and after the concrete is poured, due to the fact that the tube opening of the grouting tube is higher than the tube opening of the pumping tube, high-strength shrinkage-free grouting materials can be poured through the pre-buried grouting tube in a pressure mode. The high-strength shrinkage-free grouting material can fill and compact the narrow space between the poured concrete of the top plate and the steel sealing plate at the top, and finally concrete pouring of the underwater final joint main body structure is completed.
本发明涉及一种沉管现浇水下最终接头混凝土浇筑方法，通过钢封板形成干施工环境，使得在水下也能够在沉管内部进行干施工作业，在浇筑完底板、侧墙和中隔墙后，在搭设顶板的内模时预埋若干泵送管、若干注浆管和若干排气管，形成顶板浇筑空间；使得先通过沉管内部的泵车和预埋泵送管向顶板的浇筑空间浇筑顶板混凝土，在浇筑混凝土后，因为注浆管管口高于泵送管管口，即还可以通过预埋的注浆管进行压力灌注高强无收缩灌浆材料，高强无收缩灌浆材料在顶部能够填充密实顶板已浇筑混凝土与钢封板之间的狭小空间，最终完成水下最终接头主体结构混凝土浇筑。
Immersed tube cast-in-place underwater final joint concrete pouring method
The invention relates to an immersed tube cast-in-place underwater final joint concrete pouring method which comprises the following steps: forming a dry construction environment through a steel sealing plate, so that dry construction operation can be carried out in an immersed tube underwater, and after a bottom plate, a side wall and a middle partition wall are poured, pre-burying a plurality of pumping pipes, a plurality of grouting pipes and a plurality of exhaust pipes when an inner mold of a top plate is erected, forming a top plate pouring space; top plate concrete is poured into the pouring space of the top plate through the pump truck in the immersed tube and the pre-buried pumping tube, and after the concrete is poured, due to the fact that the tube opening of the grouting tube is higher than the tube opening of the pumping tube, high-strength shrinkage-free grouting materials can be poured through the pre-buried grouting tube in a pressure mode. The high-strength shrinkage-free grouting material can fill and compact the narrow space between the poured concrete of the top plate and the steel sealing plate at the top, and finally concrete pouring of the underwater final joint main body structure is completed.
本发明涉及一种沉管现浇水下最终接头混凝土浇筑方法，通过钢封板形成干施工环境，使得在水下也能够在沉管内部进行干施工作业，在浇筑完底板、侧墙和中隔墙后，在搭设顶板的内模时预埋若干泵送管、若干注浆管和若干排气管，形成顶板浇筑空间；使得先通过沉管内部的泵车和预埋泵送管向顶板的浇筑空间浇筑顶板混凝土，在浇筑混凝土后，因为注浆管管口高于泵送管管口，即还可以通过预埋的注浆管进行压力灌注高强无收缩灌浆材料，高强无收缩灌浆材料在顶部能够填充密实顶板已浇筑混凝土与钢封板之间的狭小空间，最终完成水下最终接头主体结构混凝土浇筑。
Immersed tube cast-in-place underwater final joint concrete pouring method
一种沉管现浇水下最终接头混凝土浇筑方法
CHEN JIANBIN (author) / OU WEISHAN (author) / LU SHIJIE (author) / ZHU CHENG (author)
2024-10-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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