A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modeling Stone Columns
This paper reviews the main modeling techniques for stone columns, both ordinary stone columns and geosynthetic-encased stone columns. The paper tries to encompass the more recent advances and recommendations in the topic. Regarding the geometrical model, the main options are the "unit cell", longitudinal gravel trenches in plane strain conditions, cylindrical rings of gravel in axial symmetry conditions, equivalent homogeneous soil with improved properties and three-dimensional models, either a full three-dimensional model or just a three-dimensional row or slice of columns. Some guidelines for obtaining these simplified geometrical models are provided and the particular case of groups of columns under footings is also analyzed. For the latter case there is a column critical length that is around twice the footing width for non-encased columns in a homogeneous soft soil. In the literature, the column critical length is sometimes given as a function of the column length, which leads to some disparities in its value. Here it is shown that the column critical length mainly depends on the footing dimensions. Some other features related with column modeling are also briefly presented, such as the influence of column installation. Finally, some guidance and recommendations are provided on parameter selection for the study of stone columns. ; The author acknowledges the funding received through the following projects: “Improvement of soft soils with stone columns for foundation of embankments. Analysis of the process and design criteria” for the Spanish Ministry of Public Works (03-A634), “An integrated calculation procedure for stone columns, considering the influence of the method of installation” for the Spanish Ministry of Science and Innovation (BIA2009-13602) and “The critical distance in rock fracture” for the Spanish Ministry of Economy, Industry and Competitiveness (BIA2015-67479-R). The author acknowledges the participation in the following projects supported by the European Commission: the Marie Cure Research Training Network entitled “Advanced Modelling of Ground Improvement on Soft Soils (AMGISS)” (MRTN-CT-2004-512120) and the Industry-Academia Partnerships and Pathways project on “Modelling Installation Effects in Geotechnical Engineering (GEO-INSTALL)” (PIA-GA-2009-230638).
Modeling Stone Columns
This paper reviews the main modeling techniques for stone columns, both ordinary stone columns and geosynthetic-encased stone columns. The paper tries to encompass the more recent advances and recommendations in the topic. Regarding the geometrical model, the main options are the "unit cell", longitudinal gravel trenches in plane strain conditions, cylindrical rings of gravel in axial symmetry conditions, equivalent homogeneous soil with improved properties and three-dimensional models, either a full three-dimensional model or just a three-dimensional row or slice of columns. Some guidelines for obtaining these simplified geometrical models are provided and the particular case of groups of columns under footings is also analyzed. For the latter case there is a column critical length that is around twice the footing width for non-encased columns in a homogeneous soft soil. In the literature, the column critical length is sometimes given as a function of the column length, which leads to some disparities in its value. Here it is shown that the column critical length mainly depends on the footing dimensions. Some other features related with column modeling are also briefly presented, such as the influence of column installation. Finally, some guidance and recommendations are provided on parameter selection for the study of stone columns. ; The author acknowledges the funding received through the following projects: “Improvement of soft soils with stone columns for foundation of embankments. Analysis of the process and design criteria” for the Spanish Ministry of Public Works (03-A634), “An integrated calculation procedure for stone columns, considering the influence of the method of installation” for the Spanish Ministry of Science and Innovation (BIA2009-13602) and “The critical distance in rock fracture” for the Spanish Ministry of Economy, Industry and Competitiveness (BIA2015-67479-R). The author acknowledges the participation in the following projects supported by the European Commission: the Marie Cure Research Training Network entitled “Advanced Modelling of Ground Improvement on Soft Soils (AMGISS)” (MRTN-CT-2004-512120) and the Industry-Academia Partnerships and Pathways project on “Modelling Installation Effects in Geotechnical Engineering (GEO-INSTALL)” (PIA-GA-2009-230638).
Modeling Stone Columns
Castro Gonzalez, Jorge (author) / Universidad de Cantabria
2017-07-01
doi:10.3390/ma10070782
Materials 2017, 10(7), 782
Article (Journal)
Electronic Resource
English
DDC:
690
| British Library Conference Proceedings | 1994
Modeling of ground improvement using stone columns
| TIBKAT | 2010
CENTRIFUGE MODELING OF GEOSYNTHETICS ENCASED STONE COLUMNS
| British Library Conference Proceedings | 1998
Finite Element Simulation of Stone Columns and Encased Stone Columns
| British Library Conference Proceedings | 2005
3D Numerical Modeling of Stone Columns and Application
| British Library Conference Proceedings | 2009