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Circumferential prestressing concrete pouring jacket used for foundation construction of bearing platform and manufacturing and installing method thereof

A technology of foundation construction and production method, which is applied in the direction of foundation structure engineering and construction, can solve problems such as casing cracking, and achieve the effect of convenient installation, saving time for demolition and post-repair

Inactive Publication Date: 2018-09-25
CCCC THIRD HARBOR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the actual use of existing concrete casings, there are generally problems of casing cracking caused by the expansion of cast-in-place concrete inside the casing under the action of heat of hydration and the temperature difference between the inside and outside of the casing itself.

Method used

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  • Circumferential prestressing concrete pouring jacket used for foundation construction of bearing platform and manufacturing and installing method thereof
  • Circumferential prestressing concrete pouring jacket used for foundation construction of bearing platform and manufacturing and installing method thereof
  • Circumferential prestressing concrete pouring jacket used for foundation construction of bearing platform and manufacturing and installing method thereof

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Embodiment Construction

[0039] In order to make it easy to understand the technical means, creative features, objectives and effects achieved by the present invention, the present invention will be further explained below in conjunction with specific drawings.

[0040] This example provides a hoop prestressed concrete box based on the characteristics of the multi-pile cap foundation, thereby improving the integrity of the box, and solving the expansion and boxing of the existing cast-in-place concrete under the action of hydration heat. The box cracking problem caused by the temperature difference inside and outside itself.

[0041] See figure 1 , Which shows an example structure of the hoop prestressed concrete box given in this example. It can be seen from the figure that the hoop prestressed concrete box 100 mainly includes a concrete box body 110. The concrete box body 110 is cylindrical as a whole and has a U-shaped cross section.

[0042] Several layers of circumferential prestressing tendons 120 are...

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Abstract

The invention discloses a circumferential prestressing concrete pouring jacket used for the foundation construction of a bearing platform. The circumferential prestressing concrete pouring jacket comprises a concrete pouring jacket body, a plurality of layers of circumferential prestressing ribs are arranged in the side wall of the concrete pouring jacket body, and an anchoring end and a tension end of each layer of the circumferential prestressing rib are arranged in a same anchor slot. Meanwhile, the invention further discloses a manufacturing and installing method of the concrete pouring jacket. The provided scheme effectively solves the problems in the prior art that the on-site concrete in the pouring jacket is expanded under the action of hydration heat and the pouring jacket is cracked because of the temperature difference between inside and outside of the pouring jacket.

Description

Technical field [0001] The invention relates to the construction technology of a multi-pile cap, in particular to a concrete boxing technology used for the construction of the foundation of the cap. Background technique [0002] Multi-pile cap foundation is a foundation type widely used in my country's offshore wind power, bridges and other projects. The traditional multi-pile cap construction uses steel box for the construction of the cap, which involves the work of reinforcing steel bar binding, concrete pouring and maintenance at sea The amount is huge. The concrete casing box is used for the construction of the platform. The casing itself can be used as a part of the platform without dismantling. At the same time, the process of pouring the bottom concrete on site is omitted, and the amount of on-site concrete pouring is reduced. [0003] However, in the actual use of the existing concrete casing, there are common problems in the casing cracking caused by the expansion of the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/14E02D27/20
CPCE02D27/14E02D27/20E02D2250/0023E02D2250/0046
Inventor 黄周泉张成芹吴锋邱松王其标钟扬
Owner CCCC THIRD HARBOR ENG
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