Connecting joint of steel support and underground diaphragm wall and correcting mold and construction method of connecting joint of steel support and underground diaphragm wall

Abstract

The invention provides a connecting joint of a steel support and an underground diaphragm wall and a correcting mold and a construction method of the connecting joint of the steel support and the underground diaphragm wall, the connecting joint of the steel support and the underground diaphragm wall comprises the underground diaphragm wall, a supporting bracket and a steel supporting system, and the correcting mold is arranged on the supporting bracket and is connected between the underground diaphragm wall and the steel support system. Therefore, the correcting mold is arranged among the underground diaphragm wall, the supporting bracket and the steel support system, and a grouting material is injected between the correcting mold and the underground diaphragm wall, so that the uneven position of the wall surface of the underground diaphragm wall is filled, and the strength of the joint is rapidly formed; the node is uniformly stressed when an axial force compensation system is loaded, so that the steel support end part mounting node which does not need to pre-embed a steel plate, saves the time required by post-embedded parts and chiseling and leveling of an underground diaphragm wall and accelerates the forming speed of a support system is formed.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a connection node between an underground continuous wall and a steel support, a correction mold and a construction method thereof. Background technique [0002] The underground diaphragm wall is a continuous wall constructed below the ground for water cut-off, anti-seepage, soil retaining, and load-bearing. The underground diaphragm wall has a wide range of adaptability to the soil, and can be applied to soft alluvium, medium-hard strata, dense sand and gravel layers, and rocky foundations. In real life, such as deep basements of houses, underground parking lots, underground streets, underground railways, underground warehouses, mines, etc., can be applied. Steel support is a commonly used support system for the rapid construction of floors adjacent to subway foundation pits. [0003] It is worth noting that during the construction process, the joint connection be...

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Problems solved by technology

[0003]It is worth noting that during the construction process, the joint connection between the steel support and the underground diaphragm wall is complicated, and the embedded slabs on the underground diaphragm wall are often displaced during the construction process. Moreover, the flatness of the underground diaphragm wall is poor after forming, so it cannot be directly used as a steel support to directly bear the force contact surface

In addition, it takes a long time to gouging and leveling the underground diaphragm wall, and it is difficult to repair the embedding parts and plant bars later. The installation of the embedding plate and the plug welding process are cumbersome, and the construction time is long, which seriously affects the rapid formation of the support system.

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