A bonded elasto-plastic soil model is employed to characterize cement-treated clay in the finite element analysis of an excavation on soft clay supported with a soil-cement slab at the bottom. The soft clay is calibrated to represent the behaviour of Bangkok soft clay. A parametric study is run for a series of materials characterised by increasing cement content in the clay-cement mixture. The different mixtures are indirectly specified by means of their unconfined compressive strength. A similar parametric analysis is run in parallel using a linear elastic-perfectly plastic model for the clay-cement. Results from both series of analysis are compared highlighting the differences in predicted behaviour of the retaining wall and the excavation stability.
|Title of host publication||Geotechnical Aspects of Underground Construction in Soft Ground - Proceedings of the 7th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground|
|Number of pages||8|
|Publication status||Published - 2012|
|Event||7th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground - Roma, Italy|
Duration: 17 May 2011 → 19 May 2011
|Conference||7th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground|
|Period||17/05/11 → 19/05/11|