Study on material ratio of sliding surface for model testing of landslide under strong earthquake effect
This study explores the similarity material ratio of sliding surface for a model of landslide under strong earthquake effect,providing a theoretical basis for simulating weak interlayers.Utilizing the orthogonal experimental design method,five materials-quartz sand,talc,loess,glycerin,and water are selected.Four control factors are set:the ratio of quartz sand to total mass,the ratio of talc to loess mass,the ratio of glycerol and water to total mass,and the ratio of glycerol to water mass.Two mechanical indexes of cohesion and internal friction angle are obtained by shear tests.Range and variance analysis are used to study the ratio of similar materials,and by solving the fitting value through multiple linear regression equations and comparing it with the experimental value,it is found that the fitting degree is relatively high.The results indicate that as the main control factors,the internal friction angle increases and cohesion decreases as the ratio of quartz sand to total mass increases.As secondary factor,cohesion decreases as the ratio of glycerol and water to total mass increases.The ratio of talc to loess mass has a great influence on cohesion,but little influence on internal friction angle.
万方数据
维普
