LI Shou-ju, LIU Ying-xi, CHEN Chang-lin, et al. Numerical computation and analysis of fracturing problems of concrete dam owing to freezing and thawing[J]. 2004, 25(2).
LI Shou-ju, LIU Ying-xi, CHEN Chang-lin, et al. Numerical computation and analysis of fracturing problems of concrete dam owing to freezing and thawing[J]. 2004, 25(2).DOI:
Based on the measuring water temperatures and weather temperatures
the regression models of water temperatures and weather temperatures in different seasons were proposed. By making use of finite element method
the temperature fields of concrete dam in different seasons were investigated
and then the changes of stress fields of concrete dam were analyzed because the weather temperature changes seriously with seasons in the cold regions. The research shows that the first principal stress of concrete dam near downstream surface can be over the tensile strength of concrete
and bring about freezing and thawing deterioration in concrete dam. The numerically computational results demonstrate that the simulating values with finite element method can approach to in-situ prospecting values.