Air pressure regulating device in pile body of anti-slip pile

Abstract

The invention provides an air pressure regulating device in a pile body of an anti-slip pile. The air pressure regulating device in the pile body of the anti-slip pile comprises a pile cap, an air inlet valve, an air outlet valve, a speed strain gauge, a connecting wire and a controller, wherein the pile cap is arranged on the pile head of a steel pipe pile; the air inlet valve and the air outletvalve are arranged on the pile cap, and the air inlet valve and the air outlet valve are electrically connected with the controller through the connecting wire; the speed strain gauge is arranged at the lower end of the pile cap and is electrically connected with the controller through the connecting wire for detecting the movement speed of the steel pipe pile; when the speed strain gauge detectsthat the movement speed of the steel pipe pile is accelerated, the steel pipe pile slides, the controller electrically controls the air outlet valve to be closed, the air inlet valve is started, and gas is pumped into a steel pipe pile body; and when the speed strain gauge detects that the slip of the steel pipe pile stops, the controller electrically controls the air outlet valve to be started, the air inlet valve stops pumping air, and the air pressure in the steel pipe pile body recovers balance, so that the slip of the pile is prevented by adjusting the air pressure in the pile body.

Description

technical field [0001] The invention relates to the field of offshore platform pile foundations, in particular to an air pressure regulating device in a pile body of an anti-slip pile. Background technique [0002] As a structure that provides production and living facilities, an offshore platform integrates transportation, drilling, construction, observation, and navigation. The pile foundation construction generally uses large-diameter super-long steel pipe piles, and the pipe piles are driven into the seabed soil layer along the conduit by a hydraulic piling hammer. However, during the piling process, when the steel pipe pile encounters the weak soil layer in the marine soil layer, the pile sliding phenomenon often occurs due to the reduction of the pile end resistance and the pile side frictional resistance. Sliding piles not only affect the quality of the pile and the bearing capacity of the pile foundation, but also cause a large error between the actual penetration o...

AI Technical Summary

Problems solved by technology

However, during the piling process, when the steel pipe pile encounters the weak soil layer in the marine soil layer, due to the reduction of the pile end resistance and the pile side friction resistance, the pile sliding phenomenon often occurs

Sliding piles not only affect the quality of the pile and the bearing capacity of the pile foundation, but also cause a large error between the actual penetration of the pile and the design elevation of the pile foundation, and also affect the quality of the pile

At present, in the field of offshore wind power, there is no device that can effectively prevent piles from slipping.

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