降雨渗流作用下垃圾填埋场堆体稳定性研究

Study on Stability of Landfill due to Rainfall Infiltration

能持续一定时间的暴雨造成的滑坡及其二次灾害所带来的经济损失、环境污染已成世界性问题。本文从降雨入渗条件下的垃圾边坡稳定分析入手,研究在不考虑渗流力的作用、考虑渗流力的作用下雨水入渗对边坡的稳定影响两种情况中,计算了堆填高度、放坡系数对垃圾堆体安全系数的影响规律。

The stability of landfill is followed with interest on a global scale. The heavy rain with certain duration acting on the landfill can cause economic lose and environmental pollution. In China, every year a vast amount of MWS are piled in the landfills, the stability of the landfill becomes a very important question for its design and construction. This paper, firstly, analyzed the stability of Yangshuiwu Landfill in north China area with complicated seepage. The result is get by calculating the safety co- efficient of landfill slope under two situations which are no seepage force, seepage force in the landfill. The heavy rain with cer- tain duration will exert a tremendous influence to the stability of MWS landfill. At same time, the safety coefficients are calculated considering on the height and the grade of landfill.