Permeability Characteristics of Tailings considering Chemical and Physical Clogging in Lixi Tailings Dam, China
作者: Zengguang XuXuemin YangJunrui ChaiYuan QinYanlong LiJun Wu
作者单位: 1State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an, Shaanxi 710048, China
2College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, Hubei 443002, China
刊名: Journal of Chemistry, 2016, Vol.2016
来源数据库: Hindawi Journal
DOI: 10.1155/2016/8147845
原始语种摘要: Chemical and physical clogging frequently occur in tailings dam. The clogging seriously influences the safety of tailings dam. This paper conducts several column experiments to analyse the physical and chemical clogging of the Lixi tailings dam in China. The experiment results of chemical clogging show that average flow velocity and permeability decrease by approximately 50% to 60%. The experiment results of physical clogging show that these values decrease by approximately 50% to 70%. For physical clogging, a higher hydraulic gradient could result in a larger extent of decrease in the permeability coefficient. The permeability did not decrease when the hydraulic gradient was equal to 0.125. The results of chemical clogging column experiments show that ferrous ion solution concentration...
全文获取路径: Hindawi 

  • clogging 阻塞
  • decrease 减少
  • chemical 化学的
  • tailings 尾渣
  • hydraulic 水力的
  • result 成果
  • physical 物理的
  • China 中国
  • values 价值观
  • higher