【作者】 吴健；

【导师】 侍倩；

【作者基本信息】 武汉大学 ， 岩土工程， 2005， 硕士

【摘要】 本文在垃圾填埋场固体废弃物沉降计算过程中考虑了垃圾土体中的有机质成分的微生物降解作用对垃圾土体单元体积压缩的影响,推导出了一个考虑有机质降解因素的土体沉降计算公式。发现因有机物成分的分解作用使得填埋场的沉降量远远比直接使用传统土力学方法进行分析所得的沉降量大。一个埋深为30m的垃圾填埋场沉降可达10m左右。 文章根据垃圾填埋场潜在的滑动面不同,分别采用了双楔体理论和GEO-SLOPE程序计算垃圾填埋体的边坡稳定。程序中考虑了有渗流和无渗流两种情况。计算结果表明,在地下水位较高的情况下,垃圾填埋体的边坡发生了破坏,在实际中也得到了验证。 最后,文章根据影响填埋体最终稳定的因素,分析了渗滤液回灌技术的原理、作用等,通过渗滤液回灌可以加速填埋场的稳定化过程。以及在实际运行管理中如何评价垃圾填埋场的稳定。更多还原

【Abstract】 Considering the decomposition effects of microbe in municipal solid waste (MSW) on compression of unit soil. A settlement-calculation formula have been conducted taking account of effect of decomposition of microbe.The result that calculated with this formula is further larger than that with traditional method.The settlement of thirty meter high MSW landfill would mount to about ten meter.Based on the difference of possible surface of slippage ,the theory of biwedges and the program of GEO-SLOPE were used to calculate and analyse stability of slope.Seepage and non-seepage were also considered in the program .The result of calculation shows that under the condition of high underground water table ,the slippage of slope happened.Final .This paper analyses the technology of leachure recycle and thinks it can accelerate the progress of stability of waste landfill.How to value the stability of waste landfill during the management was also considered in the paper.更多还原