Page 19 - Vibro Floatation
P. 19

Stone Columns Design Steps:






            Design standard :- BS EN 14731:2005 :- Execution of Special Geotechnical Works.
            Ground Treatment by Depp vibration




            1. Perform site investigation

               Soil type, gradation, consolidation, and strength important.


            2. Calculate predicted improvement.

               (Problem understood)


            3. Establish requirements of ground improvement

               (What settlements, factor of safety, etc., are allowable).


            4. Design Vibro-Replacement scheme

               (Number of stone columns, diameter of stone column
               and/or performance requirements required to achieve

               desired results).


            5. Establish testing criteria

               (Load test, SPT, area of stone columns).







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