TY - JOUR ID - 2379 TI - Stability analysis of dry sandy slopes adjacent to dynamic compaction process JO - Scientia Iranica JA - SCI LA - en SN - 1026-3098 AU - Ghanbari Alamooti, E. AU - Hamidi, A. AD - School of Engineering, Kharazmi University, Tehran, Iran Y1 - 2017 PY - 2017 VL - 24 IS - 1 SP - 82 EP - 95 KW - Dynamic compaction KW - Slope stability KW - safe distance KW - particle velocity KW - crater depth DO - 10.24200/sci.2017.2379 N2 - Dynamic compaction is a useful economic method for improving different soil types, especially loose sandy fills. However, the method has been rarely used in the vicinity of slopes due to stability concerns. In this research, dynamic compaction method adjacent to slope edge was numerically simulated using 2D plain-strain finite element models. Stability of slope models under different compaction energies and slope geometries at the same initial static factor of safety (FS) was investigated considering different stability criteria. These criteria include peak particle velocity (PPV) or peak particle displacement (PPD) on the slope, rate of change in plastic volumetric strains, yield stress ratio on the induced slip surface and the ratio of crater depths in flat and sloped models. Safe compaction distances from slope heel were calculated for different criteria and it was concluded that PPV criterion yields the most conservative distances but PPD criterion almost shows the smallest safe distances. Based on comparison of different criteria, it was concluded that combination of yield stress ratio and rate of plastic volumetric strain achieves the most acceptable safe compaction distance values for consideration in slope stability analyses. UR - https://scientiairanica.sharif.edu/article_2379.html L1 - https://scientiairanica.sharif.edu/article_2379_9700d3e2e6898eae227d69140ce01ed9.pdf ER -