Study on Influence of Shape and Reinforced Measures on Seismic Response in Large-Scale Shaking Table Model Tests

Revealing the influence of soil properties and slope shape on ground motion parameters of rock is the key to earthquake control design of slope engineering.The contrast test between slope model and layered soil model experiments through shaking table,as well as the contrast test between reinforced layered soil model and layered soil model are carried out.It is found that compared with layered soil,the amplitude magnification coefficient of seismic acceleration will increase by almost 30% in slope with free face;compared with layered soil,the amplitude magnification coefficient of seismic acceleration in reinforced layered soil can be reduced by 20%.In addition,the dynamic properties of the models under seismic force are discussed.It is found that the self-vibrating frequency of one model will decrease after repetitive vibration,and at the same time,the seismic acceleration of the soil shows a larger amplification.