Barrel-shaped foundation capable of weakening soil plug phenomenon

Abstract

The invention discloses a barrel-shaped foundation capable of weakening the soil plug phenomenon. The barrel-shaped foundation comprises a barrel, a top plate and partition plates. The top of the barrel is in sealed connection with the top plate, an inverted barrel shape is formed, and the top plate is provided with a water inlet valve. The multiple partition plates distributed at intervals are arranged on the inner wall of the barrel and are in seal contact with the inner wall of the barrel. The distances between the adjacent partition plates are gradually reduced from bottom to top. The partition plates are made of fragile materials, and each partition plate is provided with an eccentric reserved hole. After the partition plates are installed, a water flow flowing path formed by the water inlet and outlet valve and the reserved holes in the adjacent partition plates is the longest. After the multiple partition plates are arranged inside, water and air can only flow through the reserved holes between the adjacent partition plates, the water flowing path is greatly increased, the hydraulic gradient inside and outside the barrel is greatly reduced, and accordingly the effect that the soil plug phenomenon is weakened and even eliminated is achieved. The partition plates are made of fragile and circular plastic sheets, the price is low, the partition plates are jacked to be brokenthrough a seabed soil body in the injection process, accordingly, a plurality of fragments are formed, and influences on construction are avoided.

Description

Technical field: [0001] The invention relates to a barrel-shaped foundation for ocean engineering, in particular to a barrel-shaped foundation capable of reducing soil plugging. Background technique: [0002] The barrel foundation was produced in Norway in the 1990s. It is a circular plate foundation with a skirt. Because of its characteristics of reducing engineering volume, saving investment, shortening offshore construction time, and being reusable, it has been gradually used to Offshore platform and offshore wind power foundation. [0003] There are still some problems to be solved urgently in the design, construction and installation of the barrel foundation. Among them, the phenomenon of soil plugging is one of the problems that plague the barrel foundation technology in recent years. The so-called soil plugging phenomenon refers to the fact that when the barrel-shaped foundation penetrates into the seabed, the mud surface in the barrel is raised upwards under the ac...

AI Technical Summary

Problems solved by technology

The limitations of this technology are: spraying high-pressure water on the top of the barrel, on the one hand, reduces the pressure difference inside and outside the barrel, and reduces the penetration load; Construction difficulty, increased construction costs

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