A simplified approach for slope stability analysis of uncontrolled waste dumps
A simplified approach for slope stability analysis of uncontrolled waste dumps
复制标题
不受控制的垃圾场边坡稳定性分析的简化方法
DOI：
10.1177/0734242x10369691
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发表时间：
2011
影响因子：
3.9
通讯作者：
A. Turer
中科院分区：
文献类型：
--
作者：
D. Turer;A. Turer
由于废物材料的异质性，城市固体废物的边坡稳定性分析一直存在问题。为了获得有代表性的样品而需要大型测试设备，这表明需要采用简化的方法来获得废物的单位重量和剪切强度参数。在本研究中，最近发表的两种用于确定废物单位重量和剪切强度参数的方法已被纳入使用 Bishop 方法的边坡稳定性分析中，以准备边坡稳定性图表。边坡稳定性图表是针对没有衬垫和渗滤液收集系统的不受控制的废物堆场准备的，孔压比为 0、0.1、0.2、0.3、0.4 和 0.5，考虑到穿过坡脚的最关键滑面。由于所提出的边坡稳定性图表是通过考虑单位重量随高度的变化而绘制的，因此它们比在稳定性分析中接受恒定单位重量方法更好地反映了现场条件。它们还根据所需的安全系数简化了坡度或高度的选择。
Slope stability analysis of municipal solid waste has always been problematic because of the heterogeneous nature of the waste materials. The requirement for large testing equipment in order to obtain representative samples has identified the need for simplified approaches to obtain the unit weight and shear strength parameters of the waste. In the present study, two of the most recently published approaches for determining the unit weight and shear strength parameters of the waste have been incorporated into a slope stability analysis using the Bishop method to prepare slope stability charts. The slope stability charts were prepared for uncontrolled waste dumps having no liner and leachate collection systems with pore pressure ratios of 0, 0.1, 0.2, 0.3, 0.4 and 0.5, considering the most critical slip surface passing through the toe of the slope. As the proposed slope stability charts were prepared by considering the change in unit weight as a function of height, they reflect field conditions better than accepting a constant unit weight approach in the stability analysis. They also streamline the selection of slope or height as a function of the desired factor of safety.