Analysis of Soil Improvement using Stone Columns in Reducing Liquefaction Potential (Case study: Runway 3 of Soekarno-Hatta Airport)

This research discusses the use of stone columns in increasing value safety factor on soils that have potential to experience liquefaction. study aims determine sandy soil area and after Stone Column planning. The method used liquefaction is Seed et al, based interpretation SPT (Standard Penetration Test) data using column as a improvement method. Based results study, it known each point has except at points BH 7, 8, 9. LPI > 15, so Before planning 0.43-0.87 an equilateral triangle pattern increases 1.21-2.3 while square 0.95-1.94.