Method for submerging bucket foundation replacing water by gas

A cylindrical foundation and water replacement technology, which is applied to the sinking of cylindrical foundations in ports, water conservancy and bridge engineering, and in the marine field. It can solve problems such as high failure rate, complex system, and difficult control, and achieve short construction period and low cost of equipment. Simple, low-cost effect

Inactive Publication Date: 2010-06-16
JLANGSU DAODA OFFSHORE WIND CONSTR TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

In such areas with unfavorable environmental conditions, the traditional method of sinking under negative pressure by submersible pumps and other equipment is comp

Method used

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  • Method for submerging bucket foundation replacing water by gas
  • Method for submerging bucket foundation replacing water by gas
  • Method for submerging bucket foundation replacing water by gas

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Embodiment

[0013] A method for subsidence of a cylindrical foundation in which air is replaced by water, the steps are as follows: 1) A sealing cover 2 is provided on the top of the cylindrical foundation 1, and a vent hole 3 and a one-way drain pipe 4 are provided on the sealing cover 2; 2) Open the air hole 3 and the one-way drainage pipe 4, so that the self-weight of the cylindrical foundation 1 sinks in place until the self-weight of the cylindrical foundation 1 and the resistance of the soil are balanced; 3) Inflate the air into the cylindrical foundation 1 through the air hole 3, The water is discharged from the one-way drain pipe 4. When the gas in the cylindrical foundation 1 exceeds the atmospheric pressure, the inflation is stopped, and the pipeline of the vent hole 3 is connected to the atmosphere. The cylindrical foundation 1 continues to sink under the pressure difference between the inside and outside of the cylinder. This is repeated until the cylindrical foundation 1 sinks...

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Abstract

The invention provides a method for submerging bucket foundation replacing water by gas, comprising the following steps: 1) a seal cover board is arranged on the bucket top of the bucket foundation, and is provided with an air vent and a one-way drain pipe; 2) the air vent and the one-way drain pipe are opened to enable the bucket foundation to submerge and position through self weight until the bucket foundation self weight and soil body resistance are balanced; 3) the bucket foundation is aerated through the air vent to lead water therein to be discharged from the one-way drain pipe; aeration is stopped until gas pressure in the bucket foundation exceeds the barometric pressure; the air vent pipeline is communicated with air, and the bucket foundation continues to submerge under the action of the internal and external pressure difference; and the above steps are repeated until the bucket foundation submerges to the foundation soil surface. The method for submerging bucket foundation replacing water by gas in the invention has the advantages of simple equipment, convenient construction, obvious economic effect, short construction period, capability of saving construction cost and low construction cost of integrated engineering.

Description

Technical field [0001] The invention relates to a method for sinking a cylindrical foundation by replacing water with air, and belongs to the method for sinking a cylindrical foundation in port, ocean, water conservancy and bridge engineering. Background technique [0002] At present, in port, ocean, water conservancy and bridge engineering, especially in deep water conditions, the subsidence of the cylindrical foundation as a shallow foundation is the main problem in the application of the cylindrical foundation. In such areas with unfavorable environmental conditions, the traditional method of sinking under negative pressure by submersible pumps and other equipment is complex, difficult to control, and has a high failure rate. This invention aims to solve these problems and improve the sinking efficiency of the cylindrical foundation . Contents of the invention [0003] The purpose of the present invention is to solve the above existing problems and provide a method for...

Claims

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Application Information

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IPC IPC(8): E02D23/08
Inventor 丁红岩张浦阳练继建
Owner JLANGSU DAODA OFFSHORE WIND CONSTR TECH
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