Abstract: Pipe cooling for concrete dam in middle-later period is complicated relating with multiple factors including water cooling temperature, water flow and duration. A fast control method for concrete dam in middle-later cooling period is presented based on the dynamic prediction model of concrete pouring surface temperature. In association with the current measured temperature, the curve of temperature decrease is predicted based on calculation formula of pipe cooling without heat resource. Then the optimal pipe cooling scheme is obtained by adopting optimization algorithm according to temperature cooling rate and target temperature in middle-later period. Case study shows that the prediction model based on calculation formula of pipe cooling without heat resource has small workload, and the fast control of concrete dam in middle-later cooling period is feasible.

Key words: middle-later cooling, fast control, concrete dam, pipe cooling measures