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Air-cooled immersed tube section condensation tube device and construction method

A condensing pipe and air-cooled technology, which is applied in the field of mass concrete curing, can solve the problems of easy cracking and the performance of pipe sections cannot meet the design requirements, and achieves the effects of reducing engineering water consumption, high practical value and simple method.

Inactive Publication Date: 2019-12-03
ZHEJIANG UNIV CITY COLLEGE
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, the commonly used treatment measures in engineering are mostly adjusting the concrete mix ratio, adjusting the temperature of concrete raw materials, and performing external watering and curing to reduce the heat of hydration. However, these treatment measures have great limitations. For the prefabrication of large-volume immersed tube sections , cannot effectively solve the problem of hydration heat generated during concrete pouring, and cracks are still prone to occur, so that the performance of the pipe section cannot meet the design requirements

Method used

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  • Air-cooled immersed tube section condensation tube device and construction method
  • Air-cooled immersed tube section condensation tube device and construction method
  • Air-cooled immersed tube section condensation tube device and construction method

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings.

[0029] refer to Figure 1 to Figure 5 , an air-cooled immersed tube section condensing tube device, including a condensing tube 2 buried in the side wall of the immersed tube section and first, second, and third temperature sensors for detecting the temperature of concrete; the condensing tube assembly An air inlet 3 and an air outlet 4 are respectively provided at the front and rear ends; the air inlet 3 is connected to the water-cooled air conditioner 5; the air outlet 4 is connected to the exhaust fan 6.

[0030] Further, the first temperature sensor 8 is set at the middle of the side wall of the immersed tube section, the second temperature sensor 7 is set at the top of the side wall of the immersed tube section, and the third temperature sensor 9 is set at the side wal...

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Abstract

An air-cooled immersed tube section condensation tube device comprises a condensation tube embedded in the side wall of an immersed tube section, and a first temperature sensor, a second temperature sensor and a third temperature sensor which are used for detecting the temperature of concrete. The head end and the tail end of a condensation pipe assembly are provided with an air inlet and an air outlet respectively. The air inlet is connected with a water-cooled air conditioner; and the air outlet is connected to an exhaust fan. The invention further provides a construction method of the air-cooled immersed tube section condensation tube device. The problem of hydration heat generated during prefabrication of the large immersed tube section is effectively solved, the strength of the immersed tube section meets the design requirement, and the wall quality is guaranteed.

Description

technical field [0001] The invention relates to a large-volume concrete maintenance technology, and more specifically, relates to an immersed tube section condensing tube device and a construction method. Background technique [0002] In recent years, immersed tube tunnels have been increasingly used in sea-crossing and river-crossing projects because they can well solve the problem of water crossing, reduce the impact on the surrounding environment, and solve the problem of shipping in large areas of water. Among them, the prefabrication of the immersed tube section is a crucial part of the immersed tube tunnel project, and the quality of the pipe section is related to the success of the project. However, when pouring side wall concrete in immersed tube prefabrication projects, due to the constraints of the bottom slab concrete, the temperature difference caused by the internal concrete temperature rise caused by the concrete hydration heat and the shrinkage difference betw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B23/02B28B17/00E02D29/073
CPCB28B17/00B28B23/02E02D29/073
Inventor 丁智杭致远张霄
Owner ZHEJIANG UNIV CITY COLLEGE
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