Predicting the impact of riverbed excavation on the buried depth of groundwater table and capillary water zone in the river banks-taking Xinfeng hydropower station as an example

3rd International Conference on Advances in Energy, Environment and Chemical Engineering

能源学;生态环境科学;化学工业

Shi, Jie^1 ; Lan, Jun-Kang^1

College of Environmental Science and Engineering, Guilin University of Technology, Guilin

541004, China^1

关键词: Agriculture productions;    Ground water table;    Hydropower stations;    Irrigation waters;    Local residents;    Three-dimensional groundwater;    Water consumption;    Water level drops;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/69/1/012019/pdf
DOI  :  10.1088/1755-1315/69/1/012019

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to obtain a larger water level drop for power generation, Xinfeng hydropower station proposed to dig 0∼3m depth under the riverbed of downstream. This will affect the burial depth of the groundwater level and capillary water zone on both sides of the river and the nearby resident life and agriculture production. In this study, a three-dimensional groundwater numerical model was set using GMS software to predict the flow field changes after the downstream of riverbed was deepen in Xinfeng hydropower station. Simulation results showed that groundwater level near the bank will greatly decline, affecting water consumption of local residents. Because of the local developed canal system and abundant irrigation water amount, riverbed excavation barely affects agriculture production when increasing the irrigation water volume and frequency.