A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Stone Columns: Lessons Learned, Settlements, and Future Project Considerations
Stone columns have been successfully used for transportation projects across the United States to treat clays, clayey sands, and silty sands for over three decades. However, stone column specific knowledge is generally accessible to only a select group of stone column experts and specialty contractors. Data mining identified numerous case histories that allowed both (1) lessons learned to be compiled from projects that encountered unsatisfactory performance and (2) current settlement estimating methods to be evaluated. The unsatisfactory performance revealed inadequacies in three broad aspects of every project: site investigation, design, and construction monitoring. Current methods of estimating settlements were evaluated with a case history and found the Priebe method to be preferred for routine settlement estimations. Numerical modeling confirmed that the change in stress resulting from the surface load in the layers underlying the stone column reinforced ground can be approximated using a traditional elastic, Boussinesq-type stress distribution.
Stone Columns: Lessons Learned, Settlements, and Future Project Considerations
Stone columns have been successfully used for transportation projects across the United States to treat clays, clayey sands, and silty sands for over three decades. However, stone column specific knowledge is generally accessible to only a select group of stone column experts and specialty contractors. Data mining identified numerous case histories that allowed both (1) lessons learned to be compiled from projects that encountered unsatisfactory performance and (2) current settlement estimating methods to be evaluated. The unsatisfactory performance revealed inadequacies in three broad aspects of every project: site investigation, design, and construction monitoring. Current methods of estimating settlements were evaluated with a case history and found the Priebe method to be preferred for routine settlement estimations. Numerical modeling confirmed that the change in stress resulting from the surface load in the layers underlying the stone column reinforced ground can be approximated using a traditional elastic, Boussinesq-type stress distribution.
Stone Columns: Lessons Learned, Settlements, and Future Project Considerations
Douglas, S. Caleb (author) / Schaefer, Vernon R. (author)
IFCEE 2015 ; 2015 ; San Antonio, Texas
IFCEE 2015 ; 612-626
2015-03-17
Conference paper
Electronic Resource
English
STONE COLUMNS: LESSONS LEARNED, SETTLEMENTS, AND FUTURE PROJECT CONSIDERATIONS
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