Real-time inversion analysis method for heat release coefficient of concrete dam block surface

Abstract

The invention provides a real-time inversion analysis method for the surface heat release coefficient of a concrete dam block. This method monitors the climate conditions around the dam block, the surface temperature of the dam block, and the internal temperature of the dam block in real time, and calculates the internal temperature change parameters of the dam body by using the direct solution method. On the basis of the method of interpolation and iteration, inversion analysis is used to determine the surface heat release coefficient of the dam block, so as to better perform temperature control and crack prevention. The present invention has higher precision and calculation efficiency.

Description

technical field [0001] The invention relates to a real-time inversion analysis method for the surface heat release coefficient of concrete dam blocks, belonging to the technical field of water conservancy and hydropower engineering. Background technique [0002] Temperature cracks are common cracks in concrete dam blocks. Common temperature control and anti-crack measures include: lowering the pouring temperature, passing water for cooling, and surface insulation. Surface insulation measures are the most effective measures to prevent cracks on the surface of dam blocks during construction. In order to better control the temperature of the concrete dam block and prevent cracking, it is necessary to know the heat release coefficient of the surface of the dam block and control the trend of the surface temperature change of the dam block in real time. [0003] The surface heat release coefficient of concrete dam blocks can be obtained through experiments or in-situ inversion ana...

AI Technical Summary

Problems solved by technology

Conventional on-site inversion analysis methods need to simultaneously invert multiple parameters such as adiabatic temperature rise, parameters related to water cooling, and equivalent heat release coefficient based on the surface temperature data of concrete dam blocks, in order to obtain the correct surface heat release coefficient. The inversion of multiple parameters often converges to the local optimal solution rather than the global optimal solution; and the inversion process is more complicated, and often requires personnel with strong professional backgrounds to perform better

Although the indoor simulated concrete dam block has high accuracy in measuring the heat release coefficient of the concrete dam block surface, it requires special instruments and equipment, and cannot track the influence of the changing environment of the dam block on the surface temperature of the dam block in real time.

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