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振动水冲法(简称振冲法)是在软土地基中利用振动和水冲就地震制碎石柱,是一种快速加固软土地基的有效办法,在国外已有近半个世纪的发展历史,近几十年来在我国已广泛推广使用。振冲法开始用于加固砂土地基,50年代应用到粘性土中,其碎石桩直径为0.8～1.1米。根据国外试验结果,对软粘土或中等稠度的粘土,直径0.9米碎石桩,地基承载力可达150～300kPa。振冲法加固后的地基上相对密度能增至80％～90％,满足了抗液化及沉降要求。制
Vibratory water erosion method (abbreviated as vibratory redundance method) is an effective method to fasten soft soil foundation by using vibration and water rushing to make earthquakes and gravel column in soft soil foundation. It has been developed abroad for nearly half a century. History has been widely used in China in recent decades. The vibroflotation method was used to reinforce the sand foundation and was applied to clay soil in the 1950s. The gravel pile diameter was 0.8 to 1.1 meters. According to the results of foreign tests, for soft clay or medium-consistency clay, with a diameter of 0.9 m gravel piles, the bearing capacity of the foundation can reach 150-300 kPa. The relative density on the foundation reinforced by the vibroflotation method can be increased to 80% to 90%, which satisfies the anti-liquefaction and settlement requirements. system