TY - GEN
T1 - Model tests for analysis of load carrying capacity of geogrid encased stone column
AU - Lee, Daeyoung
AU - Yoo, Chungsik
AU - Park, Sisam
PY - 2007
Y1 - 2007
N2 - Stone column is one of the ground improvement systems that is used for accelerating consolidation and increasing bearing capacity for settlement sensitive structures like load embankments, bridge abutments, oil storage tanks etc. This method enhances ground bearing capacity, reduces settlement, prevent liquefaction and lateral ground movement. Recently, the geosynthetic reinforced(encased) stone column approach, which increase the confinement effect, has been developed to improve the load carrying capacity of stone column. Although such a concept has been successfully applied in practice, the fundamentals of the method have not been fully explored. This paper investigates the failure mechanism and load carrying capacity of the geogrid encased stone column by model tests. The results of the analyses indicated an improved bearing capacity of the geogrid encased stone column method over the conventional stone column method with no encasing. Also, the length of the geogrid encasement was found to be more effective for installation of the column within a length from the surface of about 2-4 column diameters. Cpyright
AB - Stone column is one of the ground improvement systems that is used for accelerating consolidation and increasing bearing capacity for settlement sensitive structures like load embankments, bridge abutments, oil storage tanks etc. This method enhances ground bearing capacity, reduces settlement, prevent liquefaction and lateral ground movement. Recently, the geosynthetic reinforced(encased) stone column approach, which increase the confinement effect, has been developed to improve the load carrying capacity of stone column. Although such a concept has been successfully applied in practice, the fundamentals of the method have not been fully explored. This paper investigates the failure mechanism and load carrying capacity of the geogrid encased stone column by model tests. The results of the analyses indicated an improved bearing capacity of the geogrid encased stone column method over the conventional stone column method with no encasing. Also, the length of the geogrid encasement was found to be more effective for installation of the column within a length from the surface of about 2-4 column diameters. Cpyright
KW - Bulging failure
KW - Load carrying capacity
KW - Model tests
UR - https://www.scopus.com/pages/publications/36448946169
M3 - Conference contribution
AN - SCOPUS:36448946169
SN - 1880653680
SN - 9781880653685
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 1632
EP - 1635
BT - Proceedings of The Seventeenth 2007 International Offshore and Polar Engineering Conference, ISOPE 2007
T2 - 17th 2007 International Offshore and Polar Engineering Conference, ISOPE 2007
Y2 - 1 July 2007 through 6 July 2007
ER -