Method and device for dynamic regulation and control of temperature index

Abstract

The present invention belongs to the mass concrete technical field and relates to a temperature index dynamic adjustment and control method and device. Temperature indexes that need to be adjusted andcontrolled in each link of a mass concrete construction process include machine outgoing opening temperature, warehousing temperature, pouring temperature and concrete internal temperature. The real-time temperature of each link during the mass concrete construction process is detected; the detected real-time temperature of each link is compared with the preset threshold value of the machine outgoing opening temperature, the preset threshold value of the warehousing temperature, the preset threshold value of the pouring temperature or the preset threshold value of the concrete internal temperature; and if the real-time temperature of a certain link is not the corresponding preset threshold value, the real-time temperature of the next link is adjusted according to the real-time temperatureof the link according to a first predetermined algorithm, and at the same time, the real-time temperature of the last link is adjusted according to the preset threshold value of the current link according to a second predetermined algorithm, and therefore, later mass concrete construction can meet standards.

Description

technical field The invention relates to the technical field of mass concrete, in particular to a method and a device for dynamically adjusting and controlling a temperature index. Background technique Mass concrete is widely used in water conservancy and hydropower projects, nuclear power projects and other infrastructure construction, especially concrete dams are the most widely used. Crack control has always been one of the difficulties in mass concrete construction. The theoretical research and engineering practice of temperature control and crack prevention began in the 1930s. After decades of development, a relatively complete set of temperature control and crack prevention theory system has been gradually established, forming a relatively systematic concrete temperature control system. Anti-cracking measures include improving the crack resistance of concrete, dividing joints into blocks, lowering the pouring temperature, passing water for cooling, and heat preservat...

AI Technical Summary

Problems solved by technology

The causes of concrete cracks are complex, including structure, material, construction, etc. One of the important reasons is the temperature control measures and temperature control management caused by the "four nos" (untimely, inaccurate, untrue, and unsystematic) of information acquisition Did not do well

At the same time, due to the artificial control method, the construction quality is often greatly affected by the quality of the on-site engineering personnel, resulting in a large deviation from the design state, resulting in the "four major" problems of temperature-controlled construction, namely: large temperature difference, large cooling range, The cooling rate is large and the temperature gradient is large, which eventually leads to the generation of concrete cracks

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