现代卫生填埋场分区填埋的稳定性与优化设计

Stability and Optimization Design of Division Landfill of Municipal Solid Waste Landfills

通过对一算例的计算,着重研究分区填埋体的稳定安全系数与其断面参数的关系.结果表明,分区填埋体安全系数随填埋体顶宽的增加呈先降后升趋势,随填埋高度的增大,曲线最低点所对应的顶宽最小值亦增大.达到同样安全系数所需的顶宽与填埋高度呈线性增长趋势.通过对算例的垃圾分区填埋设计,给出了各分区安全系数为定值时的分区断面和填埋步骤及其调整方案.

This article focuses on the study of relationship between the safety factors and the parameters of the cross- section of the waste through an example. Results show that the safety factors of division landfill are decreasing first and then followed by increasing trends with the increase of the top width of landfill cell, the minimum top width corresponding to the lowest point of the curve also increase with the increase of the height of landfill cell. The required top width increases linearly with the filling height in order to achieve the same safety factors. By means of the design of the division of landfill of an example, division section and filling steps and its adjustment scheme are given for setting value of safety factors of each filling cell.