Experimental Study on Dispersion of Unconfined Aquifer in a Site of Jilin City

• 作者: Ruiqing Wang Weihong Dong
• 来源期刊: 建筑与工程前沿研究(英文)
• 学科: 地球科学
• 关键词: Dispersion test Dispersion parameters Standard curve comparison method Unconfined aquifer
• 年，卷（期）: 2020,（3）
• 页码范围: 76-82
• 页数: 7页
• 分类号: P64

摘要

Dispersion parameter is an important parameter for the establishment of groundwater solute transport model.The dispersion test uses sodium chloride as a tracer,which was conducted in a site in Jilin City.The standard curve comparison method was used to solve the dispersion parameters of the aquifer under the natural flow field.The test results show that under the natural flow field,the longitudinal dispersion of unconfined aquifer in Jilin City is 0.400m,and the transverse dispersion is 1.933×10-5~6.557×10-3m;while the longitudinal dispersion coefficient is 0.246m2/d,the transverse dispersion coefficient is 1.191×10-5~4.039×10-3m2/d.The above results can provide an important parameter basis for the establishment of groundwater solute transport model,the accurate prediction of temporal and spatial variation of pollutant concentration in groundwater and the formulation of groundwater pollution prevention and control scheme.