Using method of negative pressure control device for sinking of bucket foundation

Abstract

The invention discloses a using method of a negative pressure control device for sinking of a bucket foundation. The negative pressure control device comprises a vacuum pump, a negative pressure storage tank and a control system. According to the device, an electric contact vacuum meter measures negative pressure in the bucket foundation, whether to start the vacuum pump or not is determined in combination with a set value, stable negative pressure in the bucket foundation can be ensured within a long time, the negative pressure is stabilized by controlling switching on or off of the vacuum pump, the size of the negative pressure storage tank can be reduced properly, and a bucket foundation negative pressure sinking test of a larger scale can be carried out based on the smaller size of thenegative pressure storage tank. The device has the advantages that the structure is simple, space is saved, stable negative pressure can be provided for a long period, and automatic control over negative pressure is achieved.

Description

[0001] The application of the present invention is a divisional application of the parent application "a negative pressure control device for cylindrical foundation sinking and its use method". The application number of the parent application is: 2016109866808, and the application date is: November 2016 9th. technical field [0002] The invention relates to a test device for marine engineering, in particular to a method for using a test device for automatically controlling negative pressure during the sinking process of a cylindrical foundation. Background technique [0003] As mankind enters the 21st century, the energy crisis has become increasingly prominent. As a renewable and clean energy, offshore wind energy has become a new direction to ease the global energy tension. As a new type of offshore platform foundation, the barrel foundation is essentially a circular plate foundation with skirt boards. Due to its advantages of reducing engineering volume, saving investment...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for using a negative pressure test device (ie, a control device) for the sinking of a cylindrical foundation, which can automatically adjust the negative pressure in the cylindrical foundation according to the setting , provide a stable negative pressure environment during the test, and solve the problem of instability caused by the need for a large negative pressure regulating tank to store negative pressure during the negative pressure sinking test, and the slow release of negative pressure during the long-term test

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