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过高的渗滤液水位是造成垃圾填埋场发生失稳破坏的主要原因,也是加剧填埋场污染负荷、降低填埋场单位面积填埋量的重要因素。根据饱和-非饱和渗流理论,考虑填埋场堆填过程中渗透系数沿深度的变化规律,采用数值方法研究填埋场水位的一维和二维形成及增长规律,提出了填埋场中孔压的分布模式。分析了不同因素对填埋场渗滤液水位的影响规律。结果表明,降雨强度、垃圾饱和渗透系数等对渗滤液水位的形成和增长影响显著,分析结果与实测水位较符合。
The excessive leachate water level is the main reason causing the instability of landfill landfill. It is also an important factor that aggravates the landfill pollution load and reduces the landfill area per unit area. According to the theory of saturated-unsaturated seepage, considering the law of permeability coefficient along the depth during the landfill landfill process, numerical methods were used to study the one-dimensional and two-dimensional formation and growth of landfill water level. Distribution pattern. The influence of different factors on leachate water level in landfill was analyzed. The results show that the rainfall intensity and the permeability coefficient of the refuse have significant effects on the formation and growth of leachate water level. The analysis results are in good agreement with the measured water level.