title: Permeability test and slope stability analysis of municipal solid waste in Jiangcungou Landfill, Shaanxi, China.
abstract: With the rapid increase of city waste, landfills have become a major method to deals with municipal solid waste. Thus, the safety of landfills has become a valuable research topic. In this paper, Jiangcungou Landfill, located in Shaanxi, China, was investigated and its slope stability was analyzed. Laboratory tests were used to obtain permeability coefficients of municipal solid waste. Based on the results, the distribution of leachate and stability in the landfill was computed and analyzed. These results showed: the range of permeability coefficient was from 1.0 × 10(-7) cm sec(-1) to 6.0 × 10(-3) cm sec(-1) on basis of laboratory test and some parameters of similar landfills. Owing to the existence of intermediate cover layers in the landfill, the perched water level appeared in the landfill with heavy rain. Moreover, the waste was filled with leachate in the top layer, and the range of leachate level was from 2 m to 5 m in depth under the waste surface in other layers. The closer it gets to the surface of landfill, the higher the perched water level of leachate. It is indicated that the minimum safety factors were 1.516 and 0.958 for winter and summer, respectively. Additionally, the slope failure may occur in summer.
  
  
  
  The research of seepage and stability in landfills may provide a less costly way to reduce accidents. Landslides often occur in the Jiangcungou Landfill because of the high leachate level. Some measures should be implemented to reduce the leachate level. This paper investigated seepage and slope stability of landfills by numerical methods. These results may provide the basis for increasing stability of landfills.
authors.affiliation: a State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area , Xi'an University of Technology, Xi'an , Shaanxi 710048 , People's Republic of China.
authors.forename: Rong
authors.initials: R
authors.lastname: Yang
authors.affiliation: a State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area , Xi'an University of Technology, Xi'an , Shaanxi 710048 , People's Republic of China.
authors.forename: Zengguang
authors.initials: Z
authors.lastname: Xu
authors.affiliation: a State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area , Xi'an University of Technology, Xi'an , Shaanxi 710048 , People's Republic of China.|b College of Hydraulic and Environmental Engineering , China Three Gorges University , Yichang , Hubei 443002 , People's Republic of China.
authors.forename: Junrui
authors.initials: J
authors.lastname: Chai
authors.affiliation: a State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area , Xi'an University of Technology, Xi'an , Shaanxi 710048 , People's Republic of China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Qin
authors.affiliation: a State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area , Xi'an University of Technology, Xi'an , Shaanxi 710048 , People's Republic of China.
authors.forename: Yanlong
authors.initials: Y
authors.lastname: Li
mesh_terms: D002681:China; D002947:Cities; D010539:Permeability; D012037:Refuse Disposal / Q000379:methods; D062611:Solid Waste; D064091:Waste Disposal Facilities
chemical_list: D062611:Solid Waste