Stone columns are widely recognized as a ground improvement technique, extensively employed to enhance the performance of foundations built on soft ground. This paper presents design of stone columns based on software and analytical method. The main objective of the work is to compare accuracy of the different models and find recommendations on which model can be used best in which situation. The comparison would be useful, since in the daily practice of geotechnical engineering number of ambiguities arise on which model is most suitable for a given situation. In support of the analysis Settle3 and StoneC has been employed for consideration of the vertical settlement and consolidation settlement under surface load. The failure mechanism is attributed to massive shear failure of the group and the surrounding soils. In the analysis, a square arrangement of stone columns has been adopted, and a parametric study has been undertaken to examine the effects of varying diameter and center-to-center (c/c) spacing. The findings reveal that changes in the diameter of stone columns do not significantly impact settlement when the c/c spacing remains constant. However, alterations in the c/c spacing result in distinct settlement outcomes. This study provides valuable insights into optimizing stone column design for improved bearing capacity and reduced settlement.

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Parametric Study of Group of Stone Columns on Soft Soil

  • Tushar J. Jadhav,
  • Nitin H. Joshi,
  • Jaykumar C. Shukla,
  • Lalit S. Thakur

摘要

Stone columns are widely recognized as a ground improvement technique, extensively employed to enhance the performance of foundations built on soft ground. This paper presents design of stone columns based on software and analytical method. The main objective of the work is to compare accuracy of the different models and find recommendations on which model can be used best in which situation. The comparison would be useful, since in the daily practice of geotechnical engineering number of ambiguities arise on which model is most suitable for a given situation. In support of the analysis Settle3 and StoneC has been employed for consideration of the vertical settlement and consolidation settlement under surface load. The failure mechanism is attributed to massive shear failure of the group and the surrounding soils. In the analysis, a square arrangement of stone columns has been adopted, and a parametric study has been undertaken to examine the effects of varying diameter and center-to-center (c/c) spacing. The findings reveal that changes in the diameter of stone columns do not significantly impact settlement when the c/c spacing remains constant. However, alterations in the c/c spacing result in distinct settlement outcomes. This study provides valuable insights into optimizing stone column design for improved bearing capacity and reduced settlement.