Study on geomembrane seepage property of earth-rock dams

2019 3rd International Workshop on Renewable Energy and Development

能源学;生态环境科学

Peng, Yunfeng^1 ; Si, Dongdong^1 ; Wu, Hailin^1

College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang

443002, China^1

关键词: Counting errors;    Defect leakage;    Earth-rock dam;    Error sources;    Feedback analysis;    Observation data;    Seepage calculation;    Seepage property;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/267/3/032090/pdf
DOI  :  10.1088/1755-1315/267/3/032090

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

As an anti-seepage material, geomembrane is widely used in earth-rock dams engineering. However, the seepage calculation of geomembrane earth-rock dams has not been studied theoretically. According to the permeation mechanism of geomembrane, it can be divided into two categories: one is the permeability of itself; the other is the defect leakage flow. Based on the feedback analysis of the observation data of geomembrane of earth-rock dam, the average permeability coefficient of geomembrane is obtained. Finally, the error sources of clay emulation in seepage calculation of geomembrane earth-rock dams are discussed. The counting error is analyzed and the mathematical model is modified.