Numerical Simulation Study on the Damage and Crack Development of Seepage Prevention Walls in Dam Foundations
Once concrete seepage prevention walls crack, they pose significant hidden risks to dam safety. To study the cracking characteristics of dam foundation concrete seepage prevention walls, numerical simulations are carried out using the concrete Bathe constitutive model and the D-P Cap model on the Renzonghai rockfill dam ' s foundation seepage prevention wall. The results show that the timing of cracking, the range of cracking, the process of crack propagation, and the state of the cracks are quite similar. This suggests that seepage prevention walls are likely to crack both during dam construction and reservoir operation, with cracks primarily appearing on the surface. During the process of reservoir water storage and water level changes, small through-cracks may occur at the junctions of the wall and the banks ( mainly on the right bank) . The right bank seepage monitoring data and on-site inspection findings to some extent corroborate the rationality of the crack simulation. These findings can serve as a reference for similar engineering projects.
万方数据
维普
