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Multi-subdivision composite cylindrical foundation and construction method thereof

A cylindrical foundation and construction method technology, applied in the direction of basic structure engineering, construction, etc., can solve problems such as insufficient bearing capacity, and achieve the effects of improving bearing capacity, expanding the scope of application, and reducing construction costs

Pending Publication Date: 2022-07-29
SHANGHAI INVESTIGATION DESIGN & RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a multi-compartment composite cylindrical foundation to solve the technical problem of insufficient bearing capacity of the existing cylindrical foundation on the upper weak soil foundation

Method used

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  • Multi-subdivision composite cylindrical foundation and construction method thereof
  • Multi-subdivision composite cylindrical foundation and construction method thereof
  • Multi-subdivision composite cylindrical foundation and construction method thereof

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Embodiment

[0069] Embodiment: the construction method of the above-mentioned multi-division composite cylindrical foundation, such as Image 6 , Figure 7 As shown, the construction method includes the following steps:

[0070] S10: Prefabricating a multi-division composite cylindrical foundation and ballast plate 80 on land.

[0071] S20: After assembling and debugging the multi-division composite cylindrical foundation and the superstructure, tower and fan, hoist it into the water, and check the middle subdivision 70, inner ring subdivision 50 and outer ring subdivision 60 of the multi-division composite cylindrical foundation air tightness.

[0072] S30 : Adjust the water-air ratio of the middle sub-chamber 70 , the inner ring sub-chamber 50 and the outer ring sub-chamber 60 to be the middle sub-chamber 70 , the outer ring sub-chamber 60 , and the inner ring sub-chamber 50 .

[0073] Specifically: as Image 6 As shown (the dotted line in the figure is the liquid level position), a...

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Abstract

The invention discloses a multi-subdivision composite barrel type foundation and a construction method thereof in the technical field of composite barrel type foundations for offshore wind power, and the multi-subdivision composite barrel type foundation comprises a barrel body with a closed top end and an open bottom, a radial cabin plate radially arranged in the barrel body, and an inner ring cabin plate and an outer ring cabin plate coaxially arranged in the barrel body, and the barrel body comprises a barrel cover and a barrel wall; a plurality of inner ring sub-cabins which are evenly distributed in the circumferential direction are formed among the inner ring cabin plate, the outer ring cabin plate, the cylinder cover and the radial cabin plate, and a plurality of outer ring sub-cabins which are evenly distributed in the circumferential direction are formed among the outer ring cabin plate, the cylinder cover, the cylinder wall and the radial cabin plate. The inner ring cabin plates and the outer ring cabin plates are arranged in the cylinder, the number of the annular cabin plates is increased, an inner cavity of the cylinder can be divided into more subdivision structures, the contact area of the cabin plates and a foundation can be increased through the increased subdivision structures, then the side friction resistance of the cabin plates is improved, and the bearing capacity of an upper soft soil foundation is enhanced; and the application range of the barrel type foundation is expanded.

Description

technical field [0001] The invention relates to the technical field of composite cylindrical foundations for offshore wind power, in particular to a multi-division composite cylindrical foundation and a construction method thereof. Background technique [0002] With the gradual development of offshore wind power technology, a variety of offshore wind turbine foundations have been put into use, such as gravity foundations, tubular foundations and pile foundations, each of which has its own scope of application. Among them, the cylindrical foundation has been widely used in the field of shallow sea wind power foundation due to its simple structure, easy construction and recovery, and high anti-slip stability. [0003] The geological conditions in our country are very complex. It is a very common situation in practical engineering that the upper foundation has soft soil and the lower foundation soil is hard or even bedrock. When the fan foundation is constructed under the above...

Claims

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Application Information

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IPC IPC(8): E02D27/42E02D15/02
CPCE02D27/425E02D15/02
Inventor 乐从欢校建东林毅峰丁红岩张浦阳姜娟黄俊张权孙秋菊王李吉李嘉隆
Owner SHANGHAI INVESTIGATION DESIGN & RES INST
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