Casting Temperature Control and Crack Prevention Measures For RCC Gravity Dam
The three-dimensional finite element model of gravity dam was established by using Anssys software to simulate and analyze the tem-perature response and stress response of concrete in the dam body,and the influence of various factors of cooling water pipes on the temperature of the dam body was studied,and a reasonable cooling water pipe layout scheme was determined.The results show that the larger the water pipe spacing,the longer the water pipe length and the larger the water pipe flow,the higher the concrete temperature of gravity dam,and the worse the cooling effect.Comprehensive cooling effect and project cost,the final determination of the cooling water pipe spacing is 1.5 m×1.5 m,the length of the cooling water pipe is 200～250 m,the flow rate of the cooling water pipe is 15～20 m3/d.It lays a foundation for the reasonable temperature control and crack prevention measures of RCC gravity dam.
Gravity damRoller compacted concreteNumerical simulationTemperature responseAnti-cracking measuresCooling water pipe parameter
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