Negative-pressure control device for bucket foundation sinking and application method thereof

Abstract

The invention discloses a negative-pressure control device for bucket foundation sinking and an application method thereof. The negative-pressure control device comprises a vacuum pump, a negative-pressure storage tank and a control system, wherein an electric contact vacuum meter measures the negative pressure in a bucket foundation, and the device determines whether to turn on a vacuum pump in combination with the set value so that stable negative pressure in the bucket foundation can be guaranteed for a long time; by controlling the on / off of the vacuum pump to stabilize the negative pressure, the volume of the negative-pressure storage tank can be appropriately reduced; and with relatively small negative-pressure storage tank, a relatively large scale of bucket foundation negative-pressure sinking test can be carried out. The device disclosed by the invention has the advantages of simple structure, space saving, long-time supply of stable negative pressure, automatic control of negative pressure and the like.

Description

technical field [0001] The invention relates to a test device for marine engineering, in particular to a test device for automatic control of negative pressure during the sinking process of a cylindrical foundation and a use method thereof. Background technique [0002] 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, shortening construction time, and being reusable, it is gradually being used in In the basic engineering of offshore wind power. The cylindrical foundation mainly depends on the internal and external pressure difference (negative pressure) to realize the sinking and placement, which is its outstanding featu...

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