Pile shoe capable of consolidating soil body and mounting method thereof

Abstract

The invention discloses a pile shoe foundation capable of consolidating a soil body and a mounting method of the pile shoe foundation, and belongs to the field of ocean engineering technology research. The pile shoe comprises a pile shoe shell, a shoe tip, a water pumping pipe, a partition rib plate, a water storage bin and the like. The pile shoe is a fusiform steel shell, and partition rib plates are arranged in the shell to increase the overall rigidity of the pile shoe; transverse and vertical grooves and drainage holes are formed in the outer side of the pile shoe, and the exterior of the pile shoe communicates with the internal water storage bin through the drainage holes; high-water-permeability gauze is used for wrapping, and the grooves and the drainage holes are prevented from being blocked; after pile shoe penetration is finished, pore water in surrounding soil flows into the internal water storage bin through the drainage holes under the action of the internal and external pressure difference of the pile shoe by pumping out water in the water storage bin and reducing the pressure in the bin, so that the surrounding soil is rapidly drained and solidified, and the bearing capacity and the stability of a pile shoe foundation can be greatly improved; when the pile shoe is recycled, a layer of water film is formed between the pile shoe and a soil body by injecting high-pressure water into the water storage cabin, the lubricating effect is achieved, and the resistance generated when the pile shoe is pulled upwards can be reduced.

Description

technical field [0001] The invention belongs to the technical field of ocean engineering, and in particular relates to a spud can for a self-elevating platform that can consolidate soil and an installation method thereof. Background technique [0002] Due to the sedimentary characteristics of the seabed foundation, it is inevitable to encounter a large number of soft clay foundations, and the thickness is often large and the coverage is very wide. As offshore energy exploitation gradually advances to the deep sea, the spud can foundation suitable for offshore oil production platforms has attracted extensive attention from the marine engineering technology community. The spud shoe foundation has been widely used in jack-up platforms due to its advantages of simple installation, easy operation and low cost. After the spud can penetrates into the seabed, the soil around the spud can be reshaped, and the internal pore water pressure accumulates, resulting in a reduction in the ...

AI Technical Summary

Problems solved by technology

[0012] Aiming at the problem of how to improve the strength of the soil around the spud can, which has not been involved in the above-mentioned prior art, one of the purposes of the present invention is to consolidate the disturbed soil around the spud can, increase the strength of the soil, and increase the load-bearing capacity of the spud can. Another purpose is to inject a high-pressure water body into the spud can to fill a layer of high-pressure water film between the spud can and the soil to reduce the The adhesion of the soil to the spud cans reduces the friction of the soil to the sides of the spud cans and reduces the resistance when pulling out piles on the platform

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