Vibro Replacement Method : Non-vibratory (dry bottom feed) Stone columns : 810 nos. Diameter : 1000 m & 800 m Average depth : 9.4 m Total linear metre : 7,610.15 LM Volume : 5,696 m3 Area of treatment : 1464.3 m2 Equipment used : BG28 rig equipped with non-vibratory dry bottom feed assembly