Air-cooled underground continuous wall condenser pipe device and construction method

Abstract

The invention provides an air-cooled underground continuous wall condenser pipe, the underground continuous wall condenser pipe device comprises a first condenser pipe buried in the upper layer of theunderground continuous wall; a second condenser pipe buried in the lower layer of the underground continuous wall; a first temperature sensor, a second temperature sensor and a third temperature sensor for detecting the temperature of the concrete; and the front and rear ends of the condenser pipe assembly are respectively provided with an air inlet and an air outlet. The invention further provides a construction method for the air-cooled underground continuous wall condenser pipe device. The air-cooled underground continuous wall condenser pipe device and the construction method can effectively solve the problem of hydration heat generated by a large underground continuous wall, so that the strength of the underground continuous wall can reach the design requirements and ensure the quality of the wall.

Description

technical field [0001] The invention relates to a large-volume concrete maintenance technology, and more particularly relates to an underground diaphragm wall condensation pipe device and a construction method. Background technique [0002] In recent years, with the increase of deep foundation pit projects and the large-scale construction of urban subways and related municipal projects, large-scale underground diaphragm walls have been used more and more in China. However, during the hardening process of mass concrete, a large amount of heat of hydration will be released inside the concrete, resulting in large temperature changes. The resulting temperature stress and shrinkage stress will easily lead to cracks in the structure. Therefore, how to effectively control the heat of hydration inside the mass concrete and avoid the generation of temperature cracks has become the focus and difficulty of engineering construction. At present, the commonly used treatment measures in e...

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Problems solved by technology

At present, the commonly used treatment measures in engineering are mostly to adjust the concrete mix ratio, adjust the temperature of concrete raw materials, and perform external watering and curing to reduce the heat of hydration. However, these treatment measures have great limitations. The wall cannot effectively solve the problem of hydration heat generated during concrete pouring, and it is still prone to temperature stress cracks, so that the strength of the concrete in the wall cannot meet the design requirements

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