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Study on the computation method of temperature field of RCC dam
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作者 ZHANG Xiao-fei LI Shou-yi +2 位作者 CHEN Yao-long YU Meng XU Yun-ming 《Journal of Energy and Power Engineering》 2009年第3期24-28,39,共6页
According to the construction characteristic of RCC dam cast by layers, three-dimensional finite element relocating mesh method is developed to simulate construction process and compute temperature field. The computat... According to the construction characteristic of RCC dam cast by layers, three-dimensional finite element relocating mesh method is developed to simulate construction process and compute temperature field. The computation model of relocating mesh method is expatiated in detail; based on the thermodynamic properties of RCC materials, the feasibility and error of relocating mesh method are analyzed and demonstrated; The computation results in this article are verified by means of the temperature observation data of certain RCC gravity dam. The results show that the temperature field computed by three-dimensional finite element relocating mesh method can not only ensure the computation precision, but also improve the calculation efficiency greatly. This provides an effective method for simulating construction process and computing temperature field of RCC dam. 展开更多
关键词 RCC dam three-dimensional finite element relocating mesh method construction process temperature field observation data
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Discussion and study on contraction joints for RCC gravity dam
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作者 ZHANG Xiao-fei LI Shou-yi CHEN Yao-long 《Journal of Energy and Power Engineering》 2009年第3期13-17,共5页
Based on the construction property of rolled compacted concrete, three-dimensional finite element relocating mesh method was developed in simulating construction process and computing temperature and stress field. Usi... Based on the construction property of rolled compacted concrete, three-dimensional finite element relocating mesh method was developed in simulating construction process and computing temperature and stress field. Using this method, the temperature and the thermal stress fields developed in the RCC gravity dam of the Longtan project with or without a longitudinal joint during construction and operation are calculated so as to simulate the construction process. The computation results show that the value of the thermal stresses developed in the dam even, without any longitudinal joint, could meet the design criteria provided the placement temperature is adequately controlled. 展开更多
关键词 three-dimensional finite element relocating mesh method thermal stress construction process longitudinal joint placement temperature
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