安徽省某生活垃圾填埋场堆体边坡稳定性分析与评价

Stability analysis and evaluation of heap slope of a domestic waste landfill in Anhui Province

对安徽省某生活垃圾填埋场的稳定性进行分析和评价,结果表明当前情况下堆体边坡稳定性符合安全要求,且3种工况下堆体抗滑稳定安全系数为天然工况>暴雨工况(滞水)>暴雨工况(渗流)。为提高堆体的稳定性,建议在优化渗滤液处理措施的同时,考虑减少补给源水体的流入;针对堆体的坡高和坡角对稳定性的影响,建议进行整形处理,以降低坡高、减少坡角。提出应对堆体含水率、渗滤液水位、坡高、坡角等影响因素进行敏感性分析,并强调还需综合考虑其他因素对稳定性分析的复杂性。整体而言,提出的处理措施和分析方法对类似工程具有重要的指导意义。

The stability of a landfill in Anhui province is analyzed and evaluated.The results show that the stability of the heap slope meets the safety requirements under the current conditions,and the safety factor of the heap anti-sliding stability under the three conditions is natural condition>rainstorm condition(water retention)>rainstorm condition(seepage).In order to improve the stability of the pile,it is recommended to consider reducing the inflow of recharge source water while optimizing leachate treatment measures.In view of the influence of slope height and slope angle on the stability of the pile,it is recommended to carry out shaping treatment to reduce the slope height and reduce the slope angle.It is proposed that sensitivity analysis should be carried out on the influencing factors such as water content,leachate level,slope height and slope angle,and it is emphasized that the complexity of other factors on stability analysis should be considered comprehensively.On the whole,the proposed treatment measures and analysis methods have important guiding significance for similar projects.