基于不等幅值循环荷载作用下低温三轴振动试验资料，研究了冻结粉质粘土在分级往返加荷情况下的残余应变产生条件。
By means of the experimental data from dynamic triaxial stress-strain test of variable cyclic amplitude for frozen soil, the formative conditions of residual strain on frozen silt clay are studied.
岩溶残余堆积物后期又经历红土化作用，造就了红粘土的基本特征。
The later period of karst corrosion deposit experienced lateritization, had accomplished the red clay basic characteristic.
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