Numerical simulation of concrete face rockfill dam seepage: case study of Miaojiaba dam, China,Proceedings of the Institution of Civil Engineers - Water Management

当前位置： X-MOL 学术 › Proc. Inst. Civ. Eng. Water Manag. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Numerical simulation of concrete face rockfill dam seepage: case study of Miaojiaba dam, China
Proceedings of the Institution of Civil Engineers - Water Management ( IF 1.1 ) Pub Date : 2021-10-19
Shan Gao, Junrui Chai, Jing Cao, Zengguang Xu, Yuan Qin, Mengling Wang, Yixuan Chai

Concrete face rockfill dams are widely used in hydropower engineering because of their many advantages. As important structures, if the performance of the concrete face slab and the impervious curtain is weakened, leakages and even serious dam failures can occur. Based on an equivalent quasi-continuum medium model, three-dimensional finite-element numerical simulations of the seepage behaviour of Miaojiaba dam, China, are performed. The seepage field and seepage characteristics, including the phreatic line, maximum hydraulic gradient and seepage discharge, are analysed quantitatively and systematically under various abnormal conditions. The results show that cracks in different areas of the face slab and different degrees of degradation in the impervious curtain influence the seepage field in different ways, with cracks in the lower face slab being the most serious. Ensuring that the face slab and impervious curtain are working as intended is very important for the integrity of the dam. Therefore, the design and construction quality of impervious structures should be strictly controlled. Under abnormal conditions, seepage control should be realised to ensure the safety and stability of concrete face rockfill dams.

更新日期：2021-10-19

点击分享查看原文

点击收藏

阅读更多本刊最新论文