Determination of Safety Monitoring Indices for Roller-Compacted Concrete Dams Considering Seepage–Stress Coupling Effects

Analyzing the working conditions of a dam using safety monitoring indices (SMIs) is relatively intuitive and effective method for evaluation. Therefore, reasonable accurate determining SMIs vital importance assessment. However, current methods dams, especially roller-compacted concrete (RCC) have many shortcomings, such as ignoring construction process dam, coupling effect among multiple physical fields, etc. In this paper, novel SMI determination considering seepage–stress effects was proposed RCC dams with assistance constructed seepage stress model so to address deficiency existing in SMIs. The coupled mathematical developed COMSOL Multiphysics establish finite element analysis an gravity Henan Province, China. Moreover, anisotropy layers also considered model. Finally, seepage, stress, deformation characteristics were analyzed based on model, determined compared traditional methods. results show that displacement fields are distributed similarly both uncoupled models. contrast hydraulic head contour distribution more dispersed Additionally, simulated by increase at different rates, pronounced concentration near heel. Comparing obtained from methods, it found discharge crest calculated anisotropic 34.78% 31.98% lower than these two effects, respectively. crucial consider when dams.