Highway engineering construction may pass through the distribution area of weak rock such as phyllite,if the phyllite waste slag generated by excavation can be used as roadbed filler,it can bring many benefits to road construction such as reducing costs,saving land resources,and protecting the ecological environment.By carrying out the indoor three-axis test of weathered phyllite filler,the influence and change law of different stress states,compaction degree and moisture content conditions on the dynamic rebound modulus of weathered phyllite filler were studied,the dynamic rebound mod-ulus estimation models were established by different stress indicators,and the regression fitting analy-sis was carried out by SPSS software to determine the dynamic rebound modulus estimation model of weathered phyllite filler by comparison.Moreover,the applicability and reliability of the model were verified by comparing the model fitting results with the test data.After verification,the regression fitting data of the model has a small error with the experimental results,both within 8％,so it can be used for predicting the dynamic rebound modulus of weathered phyllite.
关键词
风化千枚岩填料/动三轴试验/动回弹模量/预估模型/应力状态
Key words
weathered phyllite filler/dynamic triaxial test/dynamic rebound modulus/estimation model/stress state
维普
万方数据