论文部分内容阅读
为了研究城市垃圾填埋场主压缩沉降对总沉降的影响,并对主压缩沉降作出准确的预测,通过对垃圾试样的压缩试验及理论分析,采用最小二乘法对试验数据的拟合曲线进行优化,建立了城市垃圾填埋场主压缩沉降的计算模型,该模型避免了主修正压缩指数难以确定的问题。结果表明:垃圾试样在整个压缩过程中的修正主压缩指数并非常数,修正主压缩指数与垃圾试样的初始干密度有关;利用垃圾试样初始干密度建立起来的主压缩沉降的计算模型对实际主压缩沉降进行预测,得到了较为满意的结果。
In order to study the impact of main landfill on the total settlement of urban landfill, and to predict the main compression and settlement accurately, through the compression test and theoretical analysis of the garbage samples, the fitting curve of the test data by the least square method Optimization, the calculation model of the main landfill site compression and settlement is established, which avoids the problem that the main correction compressibility index is difficult to be determined. The results show that the modified principal compressive index of the rubbish sample during the whole compression process is not constant, and the correction of the principal compressibility index is related to the initial dry density of the rubbish sample. The calculation model of the main compression set by using the initial dry density of the rubbish sample The actual main compression settlement is predicted, and the satisfactory result is obtained.