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中文摘要：
通过人工配制城市固体废弃物试样,利用中型动三轴试验仪,进行城市固体废弃物的动强度试验。试验结果表明,动孔隙水压力的发展与动应变密切相关,且振动次数超过一定值后孔隙水压力趋于稳定,但在振动过程中并未出现液化现象;提出不同应变破坏标准和等效振动次数的动强度指标,为填埋场动力稳定性分析提供合理的强度参数。城市固体废弃物的动强度曲线具有良好的归一化性状,进行少量有代表性的动三轴试验,即可方便地建立不同初始应力状态下任一等效振动次数的动应力-应变关系的数学模式,为震陷量的计算提供计算公式及相应试验参数。
英文摘要：
To study the dynamic strengths of municipal solid waste（MSW）,the dynamic triaxial tests on artificial MSW samples were performed by using moderate-scale dynamic triaxial apparatus.It was found that the dynamic pore water pressure was considerably dependent on the dynamic strain.When the cyclic number exceeds a certain value,the dynamic pore water pressure of MSW will approach to a steady state;and the liquefaction was not found in vibration process.Based on the different strain failure criteria and the equivalent cyclic number,the dynamic strength parameters are obtained,which can be used in dynamic stability analysis of landfill.The dynamic strength curve of MSW has good normalization behavior;and through some representative tests,the expression of dynamic stress-strain relation of any equivalent cyclic number is achieved for different initial stresses,which can offer calculation formula and test parameters for estimating seismic settlement.
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