Open caisson structure and construction method thereof

The open caisson structure comprises an open caisson body, the open caisson body is composed of a shaft, a blade foot and a shaft bottom plate, the bottom end of the shaft is fixedly connected with the blade foot, the shaft bottom plate is installed at the inner bottom end of the shaft, and an installation groove is formed in the position, located above the blade foot, of the inner bottom end of the shaft. And the edge of the well bottom plate is clamped in the mounting groove. The open caisson structure is improved on the basis of a traditional open caisson structure, the open caisson is easy to manufacture and convenient to use, the whole structure is safe and stable, the manufacturing cost is very low, function setting can be well completed, and therefore stability, safety and economical efficiency are improved; the waterproof effect is good, a common open caisson is rarely waterproof, the design is waterproof in the construction process, the influence of underground water on the open caisson structure can