Dynamic Rebound Modulus Test and Estimation Model of Weathered Phyllite Filler
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.
weathered phyllite fillerdynamic triaxial testdynamic rebound modulusestimation modelstress state
万方数据
维普
