【摘要】 随着城市化进程的加快,城市垃圾存放已成为政府部门的棘手问题,而城市垃圾填埋场的稳定问题已经引起有关部门的重视。采用有限元分析法,结合某城市垃圾填埋场所处场地地震特性,选择人工合成地震波作为地震动输入,分别考虑边坡在有衬垫层和无衬垫层条件,以及本构模型(HSsmall模型和摩尔-库仑模型)等影响因素,对影响填埋场边坡动力响应的因素进行分析。结果表明,衬垫层的存在对边坡动力响应影响较大,HSsmall本构模型反映了土在动力作用下的特性,计算的结果更合理。分析结果可为垃圾填埋场边坡动力响应规律的研究提供依据。更多还原

【Abstract】 In the wake of acceleration of urbanization,the stability of municipal waste landfills should be paid attention to.Here,by using the finite element method and according to the characteristics of municipal waste landfills in a certain city,the influencing factors for dynamic response of the landfills are analyzed with selecting the synthetic seismic wave as the seismic input.The results show that the lining layers could affect the dynamic response greatly,and the constitutive model HSsmall could reflect the dynamic characteristics.The analysis results as mentioned above could provide the bases for studying the dynamic response of waste landfills.更多还原