Liquefaction Mitigation Analysis Using Vertical Drain

Abstract Liquefaction in semi-permeable soils such as fine sands occurs when the required time to transfer pore water pressure into form of effective stress is longer than increased pressure. Therefore, liquefaction mitigation needs be done speed up air flow during an earthquake using vertical drains this study. The data used here are adopted from previous studies that have been taken a field test Air Tawar, Padang. results showed there potential based on soil processing. equivalent circle diameter value for drain 1.2 m or radial 0.6 m. Based analysis, 60% dissipation within 20 seconds was obtained at distance 0.291 direction. From above, it can capable dissipating avoid mass. Then concluded application certain and depth mitigate layers.