Parametric Design Method of Circular Double-wall Steel Cofferdam

Abstract

The present invention relates to a parametric design method for a circular double-wall steel cofferdam. The current design method is an empirical method. In the process of drawing up relevant structural dimensions, refer to similar schemes of other projects, use finite element trial calculations and then modify relevant dimensions. Grasping the key points of double-wall steel cofferdam design as a whole leads to complicated calculation process, large waste of materials, excessive stress of some cofferdam structures, and low structural safety. It is necessary to sort out the design and calculation process of the double-wall steel cofferdam in consideration of the overall situation. Through the parametric calculation method, the rational structure of the cofferdam is uniformly considered, and the rational structure and design of the circular double-wall steel cofferdam are given. Relevant calculation formulas are convenient for cofferdam designers to preliminarily draw up the size of the cofferdam structure; the use of parametrically designed circular double-wall steel cofferdams can save 20% to 35% of material consumption compared with the double-wall steel cofferdams designed by experience in other projects, It has great promotional significance.

Description

technical field [0001] The invention relates to the structural design of a double-wall steel cofferdam. Background technique [0002] Double-wall steel cofferdam is a common structure for deep-water foundation construction. Generally speaking, double-wall steel cofferdam has a large volume and high safety risk. It is necessary for cofferdam designers to consider structural optimization while ensuring the safety of double-wall steel cofferdam structure. The problem. The basic force condition of the double-wall steel cofferdam is mainly to resist the hydrostatic pressure. The influence of the hydrodynamic pressure and wave force on the overall structure of the cofferdam is relatively small. The loads of various cofferdam structures are simple and clear, and have unity. On the basis of summarizing other previous projects, this application proposes the idea of ​​parametric design, and constructs an evaluation function to optimize the cofferdam structure. Contents of the inven...

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Problems solved by technology

[0002] Double-wall steel cofferdam is a common structure for deep-water foundation construction. Generally speaking, double-wall steel cofferdam has a large volume and high safety risk. It is necessary for cofferdam designers to consider structural optimization while ensuring the safety of double-wall steel cofferdam structure. The problem

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