Single pile cone-shaped connection segment

Abstract

The invention discloses a single pile cone-shaped connection segment. The single pile cone-shaped connection segment comprises an outer pipe, an inner pipe and a grouting material layer, the externaldiameter of the outer pipe is 2.600 m, the external diameter of the inner pipe is 2.125 m, the thickness of the outer pipe is 0.05 m, the thickness of the inner pipe is 0.07 m, the length of the grouting material layer is 10.5 m, the inner wall of the outer pipe and the outer wall of the inner pipe are both provided with a plurality of shearing force keys, the length of each shearing force key is0.02 m, the thickness of each shearing force key is 0.01 m, the space between every two adjacent shearing force keys is 0.5 m, the outer pipe comprises an outer straight pipe and an outer cone-shapedpipe which are connected in sequence, and the inner pipe comprises an inner straight pipe corresponding to the outer straight pipe and an inner cone-shaped pipe corresponding to the outer cone-shapedpipe. By means of the single pile cone-shaped connection segment, the problem that the vertical slippage phenomenon is prone to appear in the use process can be effectively solved, the outer pipe, theinner pipe and the shearing force keys are made of iron alloy, the strength of extension can reach 600 MPa, the yield strength can reach 400 MPa, the extension rate can reach 10.0%, so that the service life of a single pile is prolonged.

Description

technical field [0001] The invention relates to the field of offshore wind power, in particular to a conical connection section of a single pile. Background technique [0002] Offshore wind energy, as a clean and renewable energy, has attracted more and more attention from all over the world. The connection section filled with high-strength grouting materials is widely used in the foundation of offshore wind farms. However, structurally, this type of structure often has some unpredictable catastrophic behaviors, such as vertical slipping or even horizontal tension between the steel pipe and the grouting material in the transition section. open. The main reason for this phenomenon is insufficient understanding of the mechanical behavior of the grouted joint. At present, research on the effect of the grouting connection section of the foundation structure of offshore wind turbines mainly includes: using finite element analysis software to establish a numerical simulation mod...

AI Technical Summary

Problems solved by technology

The existing single pile is prone to vertical slippage in the connecting section during use, which has attracted the attention of researchers

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