Mechanisms of ice damage on small-diameter piles in static freshwater environments: numerical analysis of Ice cover temperature fields
DOI:
https://doi.org/10.24425/ather.2025.156592Abstract
Ice damage is receiving increasing attention in engineering. In practice, the occurrence time of ice damage to small-diameter pile structures in cold regions is different from traditional knowledge. Given the crucial impact of temperature on ice thermal expansion, simulating the temperature field of ice cover is of great significance. Based on actual engineering simulations of ice cover temperature, the propagation and amplitude attenuation characteristics of temperature waves are analysed. The one-dimensional heat conduction equation is discretized using the Crank-Nicolson method (time step Δt = 60 s, spatial step Δz = 0.01 m) and implemented in MATLAB R2023a. According to the temperatures in Daqing, three typical warming processes are selected for fitting, and two ice cover thicknesses are combined to simulate six working conditions. The results show that the temperature field inside the ice cover changes under different working conditions, and the thickness of the ice cover and the temperature rise time have a significant impact. During cooling, the temperature inside the ice cover still rises, affecting thermal expansion stress. The results can provide an important basis for the prevention and control of ice damage to small diameter piles.References
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