Simulation of earthquake wave propagation in soil compacted by rollers and determination of its reflection rate in the structure

Rasool Nodeh Farahani¹ alireza mirza goltabar² mohsen naseh³

1) Phd.candidate,Department of Civil Engineering, University of, Babol Technology, Babol, Iran
2) Associate Professor, Department of Civil Engineering, University of Babol Technology, Babol, Iran
3) Masters degree, Department of Natural Disasters Engineering - University of Tehran, Tehran.iran

Publication : 2nd International Congress On Engineering, Technology and Innovation(eticong.com/2nd)
Abstract :
When a high-power vibrating roller compacts the subgrade, the vibration wave will quickly propagate along the surface of the subgrade and generate hazards to the surrounding environment and structure. To study the vibration propagation rules of the roller, the vibration acceleration of the high-power vibrating roller was measured on the surface of the rock subgrade, coarse-grained soil subgrade, and fine-grained soil subgrade. The respective relations between vibration acceleration and the distance from a vibration source in the vertical, horizontal radial and horizontal circumferential direction have been discovered. The research results show that the vibration peak frequency generated by the vibrating roller on the subgrade approximates vibration frequency. The vibration effective influence distance varies from 10m to14m, and the horizontal radial vibration is greater than that of vertical and horizontal circumferential direction. The vibration of the rock subgrade attenuates the most slowly and propagate the most remote.
Keywords : vibration acceleration Vibration propagation safety distance