Abstract
To study the stability of waste body failure in landfill, the landfill was divided into two parts: an active wedge and a passive wedge. A limit equilibrium analysis was used to calculate the safety factor of stability in landfill. The parameters which affected the stability of the landfill were discussed. Sensitivity curves of each parameter were proposed and effect trends of various parameters on safety factor were analyzed. Cohesion c and internal friction angle фs increases linearly with the safety factor. The safety factor decreases with increasing slope angle β and filled height H. The safety factor of after landfill settlement was higher than the safety factor of settlement which did not occur. It increases the overall stability about 16%.
Highlights
Urban landfill already became one of the effective meansT to deal with urban living garbage for its economy and the advantage of convenient in various countries
Efactor of after landfill settlement was higher than the safety factor of settlement which did not occur
Liner system can prevent waste body, while it does increased the likelihood of landfill instability and deformation [1]
Summary
T to deal with urban living garbage for its economy and the advantage of convenient in various countries. Shear tests have been carried out slope safety factor and geogrid reinforced force using rigid body limit equilibrium method and based on the theory of double sliding wedge. To establish limit equilibrium equation on the wedge, make some assumptions as follows [4]: Assuming that the safety factor along the slip surface is equal in the body of landfills; Assuming that the mutual effect resultant force is equal between the active wedge body and passive wedge body, namely. Given the equilibrium of forces on librium method is satisfies, namely, the safety factor of the the active wedge body, column,respectively, balance equainterface between the wedges, not less than the landfill [5]; Assuming that the leachate water head is low, so don't consider the effect of seepage [6].
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