Steel pipe pile internally provided with multiple arc-shaped stiffening ribs and construction method of steel pipe pile

Abstract

The invention discloses a steel pipe pile internally provided with multiple arc-shaped stiffening ribs. The steel pipe pile is composed of a steel pipe and the stiffening ribs. The stiffening ribs are evenly arranged on the inner side wall of the steel pipe. The two sides of the stiffening ribs are welded to the inner side wall of the steel pipe through fillet welds in the vertical direction. A pouring region is formed between each stiffening rib and the inner side wall of the steel pipe. The stiffening ribs are arranged overall or partially. The multiple arc-shaped stiffening ribs are arranged. The construction method of the steel pipe pile includes four steps. The steel pipe pile is more scientific in design, reasonable in structure, excellent in stress performance, safe, reliable, beneficial to design manufacturing, low in weight, less in steel consumption, low in transport and construction cost, more convenient and practical.

Description

technical field [0001] The invention relates to a steel pipe pile and a construction method thereof, in particular to a steel pipe pile with a plurality of arc-shaped stiffening ribs inside and a construction method thereof. Background technique [0002] With the development of the national economy and the advancement of science and technology, the development of energy is advancing from land to sea, including offshore oil and offshore wind power. The current marine engineering foundation forms include gravity foundation, single pile foundation, multi-pod foundation, jacket foundation, high pile cap foundation, floating foundation and suction cylinder foundation. Pile foundation has obvious advantages in design, manufacture and construction. Taking offshore wind farms as an example, under most water depth and wind turbine load conditions, steel pipe pile monopile foundation is the preferred foundation form. [0003] With the increase of sea water depth and the increase of ...

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Problems solved by technology

With the increase of the pile diameter, the wall thickness of the steel pipe pile also increases according to the specifications, and the single pile foundation of the offshore steel pipe pile is mostly an open pile. The plug effect is weak, the side friction resistance provided by the soil inside the pile is much worse, and the bearing capacity of the pile tip is very low, so sufficient pile length is needed to ensure the vertical bearing capacity of a single pile. All the above factors lead to a significant increase in steel consumption , The cost of materials increases, the difficulty of processing increases, and other costs such as transportation and construction caused by the self-weight of the structure also increase accordingly, which affects the economics of the project

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