TY - JOUR
T1 - Experimental Study of Failure Mechanisms of Soil Cement Columns under Embankment Loading
AU - Pourakbar, Mehran
AU - Soroush, Abbas
AU - Khosravi, Mohammad
AU - Hung, Wen Yi
AU - Nabizadeh, Ali
AU - Huang, Jun Xue
N1 - Publisher Copyright:
© ASCE
PY - 2022
Y1 - 2022
N2 - This paper describes the centrifuge model construction procedure for an embankment on a soft clay profile reinforced by Soil-Cement (SC) columns and presents preliminary results and observations of the ground and embankment responses. Centrifuge model corresponded to, in model scale units, a 12 cm embankment with a relative density of 80% underlain by a 23 cm soft clay layer. Three rows of floating SC columns with a diameter of 2 cm and spacing of 2.4 cm were installed below the embankment toe. The centrifuge modeling procedure including soil consolidation, SC column mix design, and their installation under the embankment toe is described in detail. The results indicated that the prominent failure mode of low-strength SC columns is tension-bending failure. In addition, it was observed that the embankment crest experienced large settlement due to lateral deformation of the foundation soil and SC columns.
AB - This paper describes the centrifuge model construction procedure for an embankment on a soft clay profile reinforced by Soil-Cement (SC) columns and presents preliminary results and observations of the ground and embankment responses. Centrifuge model corresponded to, in model scale units, a 12 cm embankment with a relative density of 80% underlain by a 23 cm soft clay layer. Three rows of floating SC columns with a diameter of 2 cm and spacing of 2.4 cm were installed below the embankment toe. The centrifuge modeling procedure including soil consolidation, SC column mix design, and their installation under the embankment toe is described in detail. The results indicated that the prominent failure mode of low-strength SC columns is tension-bending failure. In addition, it was observed that the embankment crest experienced large settlement due to lateral deformation of the foundation soil and SC columns.
UR - http://www.scopus.com/inward/record.url?scp=85127452901&partnerID=8YFLogxK
U2 - 10.1061/9780784484067.018
DO - 10.1061/9780784484067.018
M3 - 會議論文
AN - SCOPUS:85127452901
SN - 0895-0563
VL - 2022-March
SP - 173
EP - 181
JO - Geotechnical Special Publication
JF - Geotechnical Special Publication
IS - GSP 336
T2 - 2022 GeoCongress: State of the Art and Practice in Geotechnical Engineering - Advances in Monitoring and Sensing; Embankment, Slopes, and Dams; Pavements; and Geo-Education
Y2 - 20 March 2022 through 23 March 2022
ER -