Abstract:

By using finite element method，integrated simulation of whole process including temperature, seepage, stress and strain is carried out for Guangzhao RCC gravity dam. The results reveal the distribution laws of temperature field, seepage field and stress field. Based on the integrated simulation of whole process, the global safety degree of the dam-foundation system, which is important for the safety evaluation as well as the corresponding control measures of the temperature and seepage fields during the dam construction, is evaluated. The results are also compared by the conventional method and the integrated simulation of whole process for the Guangzhao RCC gravity dam, from which it is found that the largest displacement difference is 70 mm; the largest stress difference is 1.5 MPa; and there is no substantial difference in global safety degree. Since the deformation, stress and global safety degree are important indices in designing RCC gravity dam, the necessity of integrated simulation of whole process for RCC gravity dam is emphasized.

Key words: RCC gravity dam, temperature, seepage, safety degree, integrated simulation of whole process