【摘要】 从有限应变理论假设出发,在Kelvin模型的基础上推导出填埋场室内应力压缩模型.将该模型与简化的生物降解模型相结合可得到填埋场室内次压缩沉降模拟试验的复合模型.该复合模型既考虑了应力沉降的机理,又考虑了有机质降解产生沉降的机理,在考虑合适参数的条件下,计算值与实测值较为符合,可以为填埋场次沉降计算提供依据.更多还原

【Abstract】 Based on the hypothesis of finite strain theory and Kelvin model,a laboratory stress compression model for simulation of landfill secondary settlement was deduced.By combination of the compression model with a simplified biodegradation model,a composite model was obtained.The composite model is more reasonable than other models because it considers the mechanism of landfill settlement not only caused by stress but also by organism biodegradation.With some parameters taken into account,the calculated results accord with the measured data,which can provide a basis for calculation of landfill secondary settlement.更多还原