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Vertical Stress Distribution on Stiffened Deep Cement Mixing Column Under Embankment Load
A series of numerical analysis was performed to investigate the vertical stress distribution on stiffened deep cement mixing (SDCM) column under embankment load. The transfer of vertical load on SDCM column was estimated based on stress reduction ratio (SRR). The parameters related to behavior of SDCM column: height and modulus of embankment fill, stiffness of core pile and DCM layer, area of core pile, were focused on the investigation. The results showed that SRR decreased with increasing elastic modulus of embankment fill and core pile, in which SRR in SDCM column was lower than that in DCM column at a given elastic modulus of fill and core pile. The analysis results presented that SRR decreased nonlinearly with increasing the cross section area of core pile. The numerical results indicated that the utilization of SDCM column to support embankment over soft clay resulted in a more efficient transfer in an arching mechanism.
Vertical Stress Distribution on Stiffened Deep Cement Mixing Column Under Embankment Load
A series of numerical analysis was performed to investigate the vertical stress distribution on stiffened deep cement mixing (SDCM) column under embankment load. The transfer of vertical load on SDCM column was estimated based on stress reduction ratio (SRR). The parameters related to behavior of SDCM column: height and modulus of embankment fill, stiffness of core pile and DCM layer, area of core pile, were focused on the investigation. The results showed that SRR decreased with increasing elastic modulus of embankment fill and core pile, in which SRR in SDCM column was lower than that in DCM column at a given elastic modulus of fill and core pile. The analysis results presented that SRR decreased nonlinearly with increasing the cross section area of core pile. The numerical results indicated that the utilization of SDCM column to support embankment over soft clay resulted in a more efficient transfer in an arching mechanism.
Vertical Stress Distribution on Stiffened Deep Cement Mixing Column Under Embankment Load
Lecture Notes in Civil Engineering
Barla, Marco (editor) / Di Donna, Alice (editor) / Sterpi, Donatella (editor) / Nguyen, Ba-Phu (author) / Doan, Nhat-Phi (author) / Daeho-Yun (author) / Kim, Yun-Tae (author)
International Conference of the International Association for Computer Methods and Advances in Geomechanics ; 2021 ; Turin, Italy
2021-01-15
8 pages
Article/Chapter (Book)
Electronic Resource
English
Behavior of cement deep mixing columns under road embankment
| British Library Conference Proceedings | 2002