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The Effects of Longitudinal Dimension in Three Dimension Slope Stability Analysis | ||
| Civil Engineering Infrastructures Journal | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 25 آذر 1402 اصل مقاله (857.19 K) | ||
| نوع مقاله: Technical Notes | ||
| شناسه دیجیتال (DOI): 10.22059/ceij.2023.362064.1939 | ||
| نویسندگان | ||
| Sumit Kumar* 1؛ Shiva Shankar Choudhary2؛ Avijit Burman2 | ||
| 1Research Scholar, National institute of technology, Patna | ||
| 2Dept. of Civil Engineering, National Institute of Technology, Patna, India | ||
| چکیده | ||
| Of late, three dimensional slope stability analysis has gained popularity among the geothechnical engineers so that the actual response of slope failure, which essentially occurs in 3D, can be captured. However, three dimensional slope failure analysis necessitates the proper consideration of the third/longitudinal dimension of the slope. Three dimensional slope stability analysis can yield erroneous results if inadequate length of the third dimension of the slope is used during analysis. Bishop's simplified method is used to determine the minimal length of a 3D soil slope's third/longitudinal direction for analysis. A parametric study contrasts 3D and 2D analyses for cohesive-frictional slope geometries, pore pressure ratios, and seismic stress. To explore 3D and 2D factor of safety (FS) convergence for slopes with varying inclination angles and longitudinal length-to-height (l/h) ratios, 15 loading examples were analyzed. This study suggests that a 3D slope model's longitudinal/third dimension should be at least five times the slope's height for proper analysis. A slope's base or toe collapse and failure mass volumes are estimated for all loading circumstances. Toe failure replaces base failure as a slope's base inclination angle increases. As slope angle increases, failure mass decreases. | ||
| کلیدواژه‌ها | ||
| Limit equilibrium method؛ Safety factor؛ Slope angle؛ Bishop's simplified method | ||
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آمار تعداد مشاهده مقاله: 58 تعداد دریافت فایل اصل مقاله: 71 |
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