选择废轮胎颗粒以0～50%的掺量与黄土混合,研究了混合土的压实特性,并采用专门设计的环刀击实设备,对环刀击实和标准击实进行了对比分析。试验结果表明,掺量小于20%时混合土的压实特性类似黄土,掺量大于40%时的压实特性类似无黏性土;不同掺量的混合土最大干密度与最优含水率存在幂函数关系,击实能对10%～30%掺量的混合物有效最大干密度影响较小;不同击实能下掺量与最优含水率存在函数关系;混合土存在最佳压实掺量,轻、重型击实能下分别为30%和40%左右。根据室内试验结果,给出了不同掺量混合土击实指标建议值供设计参考。 The waste tire pellets were selected to be mixed with loess at a dosage of 0-50%. The compaction characteristics of the mixed soil were studied. Comparing the compaction and standard compaction of the ring cutter with the specially designed ring cutter compaction equipment. The results show that the compaction characteristics of the mixed soil are similar to those of the loess when the content is less than 20%, and the non-cohesive soil is the compaction characteristic when the content is more than 40%. The maximum dry density and the optimum moisture content of the mixed soil with different content exist Power function relationship, compaction can effectively reduce the effective maximum dry density of 10% ~ 30% of the mixture. The mixing amount of different compaction energy has a function relationship with the optimal moisture content. There is the best compaction dosage Light and heavy compaction can be respectively about 30% and 40%. According to the indoor test results, the recommended values ​​of compaction indexes of different mixed soil are given for design reference.