Interface Friction Experiment On Liner Materials And Calculation About Sustaining Dam Stability

Sanitary landfill is the most important method for municipal solid waste(MSW) disposal in the world. Refuse body caused by this way also consists the stable problems as common soil bodies.Ensuring a long-term safety and stability of the refuse landfill site, it is necessary to consider the stability both the base liner and the refuse dam. As long as the slope of landfill site and the refuse dam are all stable, the landfill site can be safe. However, the premise is to master the engineering properties of the refuse landfill body(RLB).The definition of solid waste is elaborated first, then it's pollution to soil> water, atmosphere environment and so on. After introducing several handle ways to waste, a form is showed to compare those methods. At the same time, the research conditions about engineering properties and stability of the RLB between the domestic and foreign are described.The next contents emphasized on the engineering properties about RLB in civil. Some properties were studied, including water content, specific gravity, stress-strain constitutive relation, shear strength etc. Some experimental data are summarized.Based on the direct shear test, interface friction properties between different liner materials are studied through some experiments. By analysing those test data, a minimum frictional angle is concluded.Applied the material test system and based on the synthetic material test code, a series of strength tests are set up. In order to compare the different mechanical properties of different synthetic materials.Finally, the stability analysis of valley RLB is replaced by that of refuse dam. Calculation formula under two kinds of dangerous conditions are derived.