Two-wall hollow fabricated root-type open caisson foundation

Abstract

The invention discloses a two-wall hollow fabricated root-type open caisson foundation. The two-wall hollow fabricated root-type open caisson foundation is composed of a shaft, root keys and a back cover, the shaft is of an annular tubular structure with two hollow walls, and is composed of a shaft inner wall, a rib wall and an outer wall in the radial direction, and a formed cavity between the well walls communicates vertically so that mud sucking equipment can be lowered and moved in the cavity between the well walls; bottom feet of the shaft are blade feet, and root keys are arranged on thepositions, penetrating through the shaft inner wall, the rib wall and the outer wall and protruding and extending from the outer wall, of the shaft; the shaft is formed by connection of a bottom segment and a plurality of standard segments in the vertical direction, the bottom segment is in a blade shape, and the blade feet are formed; and for the shaft which is completely jointed and sunk in place, the root keys are arranged in the shaft, and then the bottom of the shaft is poured to form the back cover. According to the two-wall hollow fabricated root-type open caisson foundation, main components are connected by prefabricated components correspondingly, the structure is simple, fast and accurate sinking of an open caisson can be realized, the construction difficulty is effectively lowered, the operational safety factor is improved, industrial mass production is facilitated, and economic benefits are obvious.

Description

technical field [0001] The invention relates to an underground and underwater structure, more specifically a root type caisson foundation used in underwater foundation engineering. Background technique [0002] The 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 the barrel, it can be sunk to a certain depth underground by its own weight or with sinking aids. It is 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 traditional method of pouring or masonry section by section on site for the caisson foundation, and taking soil from the wellbore to sink, results in a large workload on site, easy deflection during the sinking process,...

AI Technical Summary

Problems solved by technology

The traditional method of pouring or laying bricks one by one on site and taking soil from the wellbore to sink the foundation of the caisson results in a large workload on site, easy deflection during the sinking process, long operation period, and high labor and material consumption.

Images