Double-wall concrete open caisson structure and construction method thereof

Abstract

The invention provides a double-wall concrete open caisson structure and a construction method thereof, and relates to the technical field of concrete open caissons. The double-wall concrete open caisson structure comprises a concrete inner wall, a concrete outer wall, a plurality of concrete partition walls and a plurality of reinforcing anchor rods, and a containing cavity is formed between the concrete outer wall and the concrete inner wall; the concrete partition walls are arranged in the containing cavity; the reinforcing anchor rods penetrate through the concrete inner wall and the concrete outer wall and extend outward in the radial direction of the concrete outer wall; and the lower end of the concrete outer wall is provided with a blade foot assembly, and the blade foot assembly extends towards one side of the concrete inner wall and blocks a lower opening of the containing cavity. According to the double-wall concrete open caisson structure, the concrete inner wall, the concrete outer wall and the concrete partition walls are used for forming a double-wall concrete open caisson, then after the double-wall open caisson sinks underground, the reinforcing anchor rods stretch into a soil layer, mortar is injected into the reinforcing anchor rods, the reinforcing anchor rods are tightly combined with a peripheral soil body, and tight connection between the double-wall open caisson and an external soil layer is improved.

Description

technical field [0001] The invention belongs to the technical field of concrete caissons, and more specifically relates to a double-wall concrete caisson structure and a construction method. Background technique [0002] A caisson is a hollow well-shaped structure made on the ground with both upper and lower openings. By removing the soil in the well and in the well, it can sink to a certain depth underground by its own weight or with sinking-assisting measures. An underground structure widely used in bridges, housing construction, municipal, mining, water conservancy, marine and other projects. [0003] With the rapid development of construction technology and equipment, the progress of basic engineering construction has become the main factor restricting the progress of the overall project. The caisson foundation adopts the method of on-site pouring or masonry section by section, and soil is taken from the shaft to sink. It is easy to deflect during the sinking process, w...

AI Technical Summary

Problems solved by technology

The caisson foundation adopts the method of on-site pouring or masonry section by section, and soil is taken from the shaft to sink. It is easy to deflect during the sinking process, which leads to heavy workload on site, long operation period, and high labor and material consumption.

Images