Novel circular double-corrugated-steel open caisson structure

Abstract

The invention discloses a novel circular double-corrugated-steel open caisson structure. The novel circular double-corrugated-steel open caisson structure comprises an inner-layer steel plate and an outer-layer steel plate, wherein the steel plate located on the outer layer is an outer-layer vertical corrugated steel plate, a vertical corrugated portion which extends in the vertical direction andis concavo-convex in the horizontal direction is arranged on the outer-layer vertical corrugated steel plate, the steel plate located on the inner layer is an inner-layer horizontal corrugated steel plate, and a horizontal corrugated portion which is in a circular shape and is provided with a concave-convex structure on the vertical surface is arranged on the inner-layer horizontal corrugated steel plate. According to the novel circular double-corrugated-steel open caisson structure, firstly, a smooth steel plate is machined into the horizontal corrugated shape to form the inner-layer corrugated steel, so that the cross-sectional moment of inertia of the novel circular double-corrugated-steel open caisson structure is greatly increased, and the bearing capacity of the steel plate is greatly improved; secondly, the structure is considered to need to have the strong vertical pressure-bearing capacity and the water and soil pressure of transmitting the outer side of an open caisson, so that the smooth steel plate is machined into the vertical corrugated shape to form the outer-layer corrugated steel; and the novel circular double-corrugated-steel open caisson structure can adapt to elastic restraint and deformation of a surrounding soil body of the open caisson structure, the redistribution of the non-uniform soil pressure around the open caisson is achieved, the bearing capacityof the structure is improved, and the structure economy is improved.

Description

technical field [0001] The invention relates to the technical field of construction engineering foundations, in particular to a wave steel caisson foundation. Background technique [0002] In the basic design and construction of bridge foundation engineering and municipal engineering, caisson structure is a common structure, which has the function of retaining soil and water, so as to form bridge foundation or dry construction environment. The currently commonly used caisson structures are basically prefabricated or cast-in-place reinforced concrete structures. The main disadvantages are that it is inconvenient to control the quality of on-site construction, and the on-site construction takes a long time, requires a lot of work, and requires a lot of labor. [0003] The corrugated steel plate caisson structure is a structure formed by pressing the surface of the thin steel plate into a wave shape, then making arc-shaped plates according to engineering requirements, and then ...

AI Technical Summary

Problems solved by technology

However, the corrugation of single-layer corrugated steel is only in one direction, such as horizontal or vertical. The bending capacity is very weak, and there is a huge difference in the ability to withstand pressure in different directions

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