Open caisson with waterproof structure

Abstract

The invention discloses an open caisson with a waterproof structure. A waterproof curtain (1) is arranged on the outer side of the periphery of the open caisson. A plurality of supporting ribs (4) are arranged in the open caisson and are H shape steel. The two ends of the shape steel are welded to an inner caisson wall (3) of the open caisson. In the open caisson, the supporting ribs (4) are distributed at intervals of 3-5 m in the horizontal direction and at intervals of 5-8 m in the vertical direction. A plurality of protrusions (2) are arranged at the positions where a poured bottom plate is located of the inner caisson wall (3) of the open caisson and extend along the inner caisson wall (3) of the open caisson in the radial direction of a center axis of the open caisson, rabbets facilitating post-pouring of the poured bottom plate are arranged at the extending ends of the protrusions (2), and built-in steel plates (7) are arranged in the protrusions (2). The open caisson is provided with the waterproof structure and is solid in structure and good in durability.

Description

Technical field [0001] The invention relates to the technical field of building construction, in particular to a caisson with a water-stop structure. Background technique [0002] The caisson is a well-shaped structure. It is excavated in the well, relies on its own gravity to overcome the friction resistance of the shaft wall, then sinks to the design elevation, then passes through the concrete bottom and fills the well hole, making it a bridge pier or other structure Foundation. The caisson structure has a large cross-section size, high bearing capacity, impermeability, good durability, available internal space, and can be used for the construction of large-depth underground projects; it can be used for construction under various complex terrain, geological and narrow site conditions. Neighboring buildings and structures have little impact. It is generally used in the construction of foundation pits of large bridge piers, sewage pumping stations, large equipment foundations, ...

AI Technical Summary

Problems solved by technology

[0003] However, when the geological conditions are poor or the groundwater level is high, sudden sinking, soil gushing, quicksand, and deflection are likely to occur when the caisson sinks, and sudden sinking, deflection, or gushing soil, etc. The problem, in this case, the sinking of the caisson is not easy to construct

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