Analysis of dynamic response of subducted soil cavern in karst area under cyclic loading
In order to investigate the response law of soil body in karst area under cyclic dynamic load,FLAC 3D software was used to establish a soil cave model and apply cyclic load through fish language to study the effects of soil layer thickness,amplitude,frequency and relative position on the surface settlement displacement.The results show that under the dynamic load,the surface settlement displacement tends to increase with the increase of soil thickness;the amplitude decreases from the center of load application;the soil body resonates at the frequency of 4 Hz,and the soil hole is easy to collapse;when the relative position of the soil cavity and the dynamic load changes,the maximum settlement displacement point shifts accordingly.
万方数据
维普
