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A platform for research: civil engineering, architecture and urbanism
Box steel column core-grouted concrete pumping and jacking mechanism and construction method
The invention provides a box steel column core-grouted concrete pumping and jacking mechanism and construction method. The box steel column core-grouted concrete pumping and jacking mechanism comprises a core-grouted concrete supporting steel column, wherein a grouting feeding hole is arranged in the side wall close to the bottom end of the core-grouted concrete supporting steel column; the grouting feeding hole is connected to a feeding branch pipe; the feeding branch pipe is connected to a grouting device; and a backflow preventer is arranged on the feeding branch pipe. According to the jacking method construction method, the feeding branch pipe with the backflow preventer is arranged at the lower end of the steel column and is directly connected to a conveying pipe of a pump truck, theconcrete is continuously poured into the steel column from bottom to top, and all gaps in the steel column can be completely filled without vibrating. The pumping is stopped and the backflow preventeris closed immediately when the concrete is jacked to meet the requirement for designed elevation. Through the jacking method construction, the box steel column core-grouted concrete pumping and jacking mechanism has the advantages that the flexible operation, safety and reliability are realized, the labor intensity is reduced, the working efficiency is improved, the construction quality is effectively guaranteed, the construction cost is reduced, and the like.
本发明提供一种箱型钢柱灌芯混凝土泵送顶升机构及施工方法，包括：灌芯混凝土支撑钢柱；靠近灌芯混凝土支撑钢柱底端的侧壁上开设有注浆进料孔；注浆进料孔连接有进料支管；进料支管连接注浆装置；进料支管上设置防回流装置。本发明的顶升法施工方法是在钢柱下端设置一个带有防回流装置的进料支管，直接与泵车的输送管相连，将混凝土自下而上的连续灌入钢柱内，且无需振捣就能将钢柱内所有空隙填充完全。在混凝土顶升到设计标高要求时停止泵送并立即关闭防回流装置。顶升法施工实现了操作灵活、安全可靠，降低劳动强度、提高了工作效率、有效保障施工质量、降低施工成本等优点。
Box steel column core-grouted concrete pumping and jacking mechanism and construction method
The invention provides a box steel column core-grouted concrete pumping and jacking mechanism and construction method. The box steel column core-grouted concrete pumping and jacking mechanism comprises a core-grouted concrete supporting steel column, wherein a grouting feeding hole is arranged in the side wall close to the bottom end of the core-grouted concrete supporting steel column; the grouting feeding hole is connected to a feeding branch pipe; the feeding branch pipe is connected to a grouting device; and a backflow preventer is arranged on the feeding branch pipe. According to the jacking method construction method, the feeding branch pipe with the backflow preventer is arranged at the lower end of the steel column and is directly connected to a conveying pipe of a pump truck, theconcrete is continuously poured into the steel column from bottom to top, and all gaps in the steel column can be completely filled without vibrating. The pumping is stopped and the backflow preventeris closed immediately when the concrete is jacked to meet the requirement for designed elevation. Through the jacking method construction, the box steel column core-grouted concrete pumping and jacking mechanism has the advantages that the flexible operation, safety and reliability are realized, the labor intensity is reduced, the working efficiency is improved, the construction quality is effectively guaranteed, the construction cost is reduced, and the like.
本发明提供一种箱型钢柱灌芯混凝土泵送顶升机构及施工方法，包括：灌芯混凝土支撑钢柱；靠近灌芯混凝土支撑钢柱底端的侧壁上开设有注浆进料孔；注浆进料孔连接有进料支管；进料支管连接注浆装置；进料支管上设置防回流装置。本发明的顶升法施工方法是在钢柱下端设置一个带有防回流装置的进料支管，直接与泵车的输送管相连，将混凝土自下而上的连续灌入钢柱内，且无需振捣就能将钢柱内所有空隙填充完全。在混凝土顶升到设计标高要求时停止泵送并立即关闭防回流装置。顶升法施工实现了操作灵活、安全可靠，降低劳动强度、提高了工作效率、有效保障施工质量、降低施工成本等优点。
Box steel column core-grouted concrete pumping and jacking mechanism and construction method
一种箱型钢柱灌芯混凝土泵送顶升机构及施工方法
GAO HONGZHENG (author) / WANG WEIWEI (author) / WANG XIAOBO (author)
2020-09-08
Patent
Electronic Resource
Chinese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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