Gradient type concrete water pipe control system and control method

Abstract

The invention relates to the field of civil engineering, in particular to a gradient type concrete water pipe control system and control method. According to the gradient type concrete water pipe control system and control method, in the temperature rising period of concrete, the center temperature of the concrete can be reduced as quick as possible with the highest efficiency, the temperature can be reduced by 20-25 DEG C at maximum, adiabatic temperature rising of the concrete is equivalently reduced, and the cracking risk is reduced; in the temperature decreasing period of the concrete, the temperature decreasing speed of the concrete can be reduced by adjusting the water temperatures of water pipes in different positions of the concrete, the temperature decreasing speed of the concrete is smaller than or equal to 3.0 DEG / day, impact of contraction deformation is reduced, and the cracking risk is reduced; and meanwhile the concrete water pipe control system can automatically read the temperatures of temperature measuring points inside the concrete and adjust the water inlet temperatures of the water pipes according to the actual temperatures of the parts inside the concrete, the temperature gradient among the interior, middle and exterior of the concrete and air is reduced to the maximum extent, and the cracking risk is reduced.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a gradient concrete water pipe control system and control method. Background technique [0002] Concrete cracks are a common phenomenon in concrete structures; the main reason for concrete cracks is that after concrete pouring, a large amount of hydration heat generated during the hydration of large-volume concrete cannot be dissipated, resulting in a temperature gradient between the outer layer of concrete and the interior of the concrete , resulting in temperature stress and cracks; in addition, after the concrete is poured, the water on the concrete surface evaporates too quickly, resulting in a large negative pressure in the capillary and a sharp shrinkage of the concrete volume. At this time, the concrete has low strength and cannot resist this deformation stress. And lead to cracking; the existence of such cracks will not only affect the life of the building and the appeara...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that in the prior art concrete cooling technology, the same circulating water pipe will pass through various regions of different temperatures in the concrete structure at the same time, resulting in the inability to finely control the concrete cooling. Divide it into different temperature zones according to the different temperature in each zone, and adopt a gradient concrete water pipe intelligent monitoring system with differentiated control for each temperature zone

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