城市固体废弃物卫生填埋场边坡稳定性分析

Stability analysis of slope of municipal solid waste sanitary landfill

以阜新垃圾填埋场为例,运用极限平衡理论条分法对填埋体边坡稳定性进行了计算分析,确定了最佳边坡坡度,并运用专门模拟填埋体堆载过程的FLAC3D程序对所求的最佳边坡坡度进行了验证。分析结果表明:该填埋体边坡处于稳定状态,其最佳边坡坡度为1:2。

Taking Fuxin landfill as an example, the slice method based on the limit equilibrium theory was used to analyze the slope stability of the landfill body and to determine the optimal slope gradient. The FLAC3D procedure which was designed specifically to simulate the loading process of landfill was used to certificate the optimal slope gradient obtained by the limit equilibrium theory. The results of the analysis indicate that the slope of the landfill body is in a stable state and the optimal slope gradient of the landfill body is1：2.