Reinforced negative pressure barrel-single pile combined type maritime work foundation structure

Abstract

The invention provides a reinforced negative pressure barrel-single pile combined type maritime work foundation structure. The structure comprises a negative pressure barrel and a single pile; the negative pressure barrel comprises an inner barrel wall, an outer barrel wall and an annular top plate connecting the inner barrel wall and the outer barrel wall; the inner barrel wall, the outer barrelwall and the annular top plate form a cavity with a lower opening; a plurality of partition plates are arranged in the cavity to divide the cavity into a plurality of compartments; drain holes are formed in the positions, corresponding to the compartments, of the annular top plate; the excircle diameter of the annular top plate is greater than the outer diameter of the outer barrel wall, so that the part, protruding out of the outer barrel wall, of the excircle edge of the annular top plate forms an annular wing structure; the upper end part of the inner barrel wall exceeds the upper surface of the annular top plate; a supporting plate is arranged on the annular top plate; the lower end part of the inner barrel wall exceeds the lower port of the outer barrel wall; the lower edge of the partition plate is flush with the lower port of the inner barrel wall; and the single pile is inserted into the inner barrel wall and is fixedly connected with the inner barrel wall. The reinforced negative pressure barrel-single pile combined type maritime work foundation structure has good anti-tilting, anti-drawing and anti-sliding capacities.

Description

technical field [0001] The invention belongs to the technical field of offshore engineering foundations, in particular to a reinforced negative pressure barrel-single pile composite offshore foundation structure. Background technique [0002] With the vigorous development of marine resources, more and more marine structures have emerged, including offshore deep-water terminals, offshore wind turbines, offshore airports, offshore oil production platforms, and sea-crossing bridges. These offshore structures need to build a solid structural foundation during construction to ensure the normal operation and safety of the offshore structures. [0003] At present, the more common offshore foundation forms are pile foundations or barrel foundations. In order to meet the development trend of deep-sea, integrated and large-scale marine engineering in recent years, the requirements for the bearing capacity of the foundation are higher. If the pile foundation is used, a single pile fou...

AI Technical Summary

Problems solved by technology

In order to meet the development trend of deep-sea, integrated and large-scale marine engineering in recent years, the requirements for the bearing capacity of the foundation are higher. If the pile foundation is used, a single pile foundation with a larger diameter or a group composed of inclined piles is required. Pile foundation, however, the geological conditions in some sea areas are very complex, and the overburden soil in these sea areas is usually composed of silt, muddy clay, silty fine sand, silt sand, etc., and the bearing capacity of the foundation is poor, which greatly increases the difficulty and cost of construction

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