Abstract
In this paper, a case study of a highway embankment in Thailand constructed over Deep Cement Mixed (DCM) column improved ground was investigated. The case study was simulated using the RS2 (2019) finite element program. A 2D plane-strain model was created adopting the equivalent area approach for DCM columns. The field measurements for settlements, excess pore water pressures and lateral deformation of the embankment are compared with the finite element results to verify the numerical model, and to understand the load transfer mechanism. The most likely failure mode of the embankment was investigated by computing the Factor of Safety (FOS) against the bearing failure and bending failure of individual DCM columns, and the overall stability of the embankment. Results show that the most likely failure mode for this embankment is the bending failure of attached columns underneath side slopes of the embankment.
| Original language | English |
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| Title of host publication | Proceedings of the International Conference on Geotechnical Engineering, ICGE-Colombo-2020: Geotechnics in a Challenging Environment, 6 - 7th December 2021, Colombo, Sri Lanka |
| Publisher | Sri Lankan Geotechnical Society |
| Pages | 275-280 |
| Number of pages | 6 |
| Publication status | Published - 2021 |
| Event | International Conference on Geotechnical Engineering - Duration: 6 Dec 2021 → … |
Conference
| Conference | International Conference on Geotechnical Engineering |
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| Period | 6/12/21 → … |