【摘要】 对不同水泥掺入比、不同密度和不同龄期的聚苯乙烯轻质混合土,进行不固结不排水和固结不排水常规三轴压缩试验,以研究聚苯乙烯轻质混合土应力应变特性的变化规律和抗剪强度指标的确定方法.试验结果表明,水泥掺入比、密度和龄期,对不固结不排水和固结不排水三轴压缩试验的应力应变特性和抗剪强度指标c,φ的大小有不同程度的影响.更多还原

【Abstract】 Unconsolidated-undrained and consolidated-undrained triaxial compression tests were conducted on the polystyrene lightweight soil with different cement mixing ratios, densities, and ages under confining pressures for the study of the stress-strain properties of the soil and the method for determination of its shear strength parameters. It is indicated that the cement mixing ratio, density and age of the lightweight soil have different influences on the results of stress-strain properties and shear strength indexes of the soil in triaxial compression tests under unconsolidated-undrained and consolidated-undrained conditions.更多还原