【摘要】 通过碎石桩加固液化模型土振动台试验,研究了一定埋深时密实度变化的模型地基土振动过程中孔隙水压力和孔压比的峰值、振动结束后消散程度,揭示了加固与未加固液化土随埋深变化的孔压比与密实度的变化规律,阐明碎石桩加固液化土主要以密实度和排水两因素为主的加固机理,研究结果对今后实际工程碎石桩加固复合地基液化土判断有一定指导意义。更多还原

【Abstract】 The author performs the shaking table test of liquefied soil improved by gravel pile,and then analyzes pore water pressure as well as its peak ratio during vibration and dissipation.It is demonstrated that the pore pressure ratio at different buried depths changes with density.The mechanism of liquefied soil improved by gravel pile is discussed,which is related to the density and drainage of sand soil.更多还原