| Autor: |
Shukla, A., Pandey, B. K., Ingale, R., Vivek, A. K., Meshram, K. |
| Zdroj: |
Indian Geotechnical Journal; 20230101, Issue: Preprints p1-11, 11p |
| Abstrakt: |
Embankment construction on clayey soil poses stability issues due to poor geotechnical characteristics. Encased stone columns can improve the soil and solve problems such as settlement, slope stability, and water pressure dissipation. This study aims to evaluate the effect of construction parameters on the performance of embankments built on clayey soil, and clayey soil improved with encased stone columns (ESC) using commercial software. The parameters examined included the pace of embankment construction and consolidation time for each lift of the embankment. The pace of embankment construction varied from a very slow pace with a lift thickness of 0.9 m to a rapid pace with a lift thickness of 7.2 m; however, the consolidation time varied between 1 and 64 days. The results confirm that the rapid construction phase in the case of clayey soil causes 46% higher settlement compared to the very slow pace of construction. In the ESC-improved clayey soil, the failure of embankment after the slow pace of embankment construction is principally circular toe failure, irrespective of consolidation time. The embankment's safety factor increases significantly after clayey soil is improved with ESC. |
| Databáze: |
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