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A platform for research: civil engineering, architecture and urbanism
Mold bag concrete-steel plate combined joint for connecting steel pipe inner support and foundation pit retaining structure
The invention discloses a mold bag concrete-steel plate combined joint for connecting a steel pipe inner support and a foundation pit retaining structure. The joint is composed of mold bag concrete, a steel plate and an adjustable twisted steel, wherein one end of the joint structure is connected with the side wall of a foundation pit, and the other end of the joint structure abuts against the end face of the steel pipe inner support. The steel plate is poured and fixed during construction of a retaining structure diaphragm wall or the row piles. The steel plate supports the tray. The mold bag is used for pressure pouring of concrete, so that joint gaps are filled with the concrete. The steel plate abuts against the end face of the steel pipe inner support. The length of the twisted steel connecting steel plate is adjusted according to field requirements. After the concrete is poured under pressure, the concrete has certain fluidity and can well fill gaps in the joint and eliminate local weakening influence on the joint caused by eccentricity, the mold bag is a water-permeable and air-permeable material, and the water cement ratio is reduced, the later strength is increased and the bearing capacity is improved by continuously draining water in the concrete setting process. The method has good technical and economic effects and application prospects.
本发明公开了一种连接钢管内支撑与基坑围护结构的模袋混凝土‑钢板组合节点，该节点由模袋混凝土、钢板、可调节螺纹钢筋组成，节点结构一端与基坑侧壁连接，另一端与钢管内支撑端面抵接。钢板在围护结构地连墙或排桩施工时浇筑并固定。钢板承担支撑托盘作用。所述模袋用来压力灌注混凝土，使其填充节点空隙。钢板与钢管内支撑端面顶紧。所述螺纹钢筋连接钢板根据现场需求调节长度。本发明压力灌注混凝土后，混凝土具有一定的流动性，能够很好地填充节点内部空隙，消除偏心给节点带来的局部弱化影响，且模袋是一种透水透气材料，混凝土凝结过程中不断通过排水降低水灰比，增大后期强度、提高承载力，本发明具有良好的技术经济效应和应用前景。
Mold bag concrete-steel plate combined joint for connecting steel pipe inner support and foundation pit retaining structure
The invention discloses a mold bag concrete-steel plate combined joint for connecting a steel pipe inner support and a foundation pit retaining structure. The joint is composed of mold bag concrete, a steel plate and an adjustable twisted steel, wherein one end of the joint structure is connected with the side wall of a foundation pit, and the other end of the joint structure abuts against the end face of the steel pipe inner support. The steel plate is poured and fixed during construction of a retaining structure diaphragm wall or the row piles. The steel plate supports the tray. The mold bag is used for pressure pouring of concrete, so that joint gaps are filled with the concrete. The steel plate abuts against the end face of the steel pipe inner support. The length of the twisted steel connecting steel plate is adjusted according to field requirements. After the concrete is poured under pressure, the concrete has certain fluidity and can well fill gaps in the joint and eliminate local weakening influence on the joint caused by eccentricity, the mold bag is a water-permeable and air-permeable material, and the water cement ratio is reduced, the later strength is increased and the bearing capacity is improved by continuously draining water in the concrete setting process. The method has good technical and economic effects and application prospects.
本发明公开了一种连接钢管内支撑与基坑围护结构的模袋混凝土‑钢板组合节点，该节点由模袋混凝土、钢板、可调节螺纹钢筋组成，节点结构一端与基坑侧壁连接，另一端与钢管内支撑端面抵接。钢板在围护结构地连墙或排桩施工时浇筑并固定。钢板承担支撑托盘作用。所述模袋用来压力灌注混凝土，使其填充节点空隙。钢板与钢管内支撑端面顶紧。所述螺纹钢筋连接钢板根据现场需求调节长度。本发明压力灌注混凝土后，混凝土具有一定的流动性，能够很好地填充节点内部空隙，消除偏心给节点带来的局部弱化影响，且模袋是一种透水透气材料，混凝土凝结过程中不断通过排水降低水灰比，增大后期强度、提高承载力，本发明具有良好的技术经济效应和应用前景。
Mold bag concrete-steel plate combined joint for connecting steel pipe inner support and foundation pit retaining structure
一种连接钢管内支撑与基坑围护结构的模袋混凝土-钢板组合节点
ZHANG MINGJU (author) / LIU WENJIE (author) / LI PENGFEI (author) / GUO CAIXIA (author)
2021-12-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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