The electrical resistivity method was verified as an optional technique to monitor the change of mesostructure of saturated soils. To investigate the change laws of resistivity and analyze the reliquefaction meso-mechanism during the consecutive liquefaction process, five successive impact liquefaction tests were performed in a one-dimensional cubical chamber. The resistivity variation and excess pore water pressure (EPWP) were measured. The results indicate that the excess pore water pressure experienced four stages: quick increase stage, slow dissipation stage, rapid dissipation stage, and stability stage. Meanwhile, a swift decrease of resistivity emerged before the start of the rapid dissipation stage of EPWP, and then an increasing trend of resistivity is demonstrated with the densification of soil. It is proved that the vertical pore connectivity of liquefied sand is better than its random deposit state, based on a comparative study of porosity calculated from the settlement and resistivity of sand after each test.

电阻率法被验证为监测饱和土细观结构变化的可选技术。为了研究连续液化过程中电阻率的变化规律并分析再液化细观机制，在一维立方体室内进行了五次连续的冲击液化试验。测量了电阻率变化和超孔隙水压力（EPWP）。结果表明，超孔隙水压力经历了快速增加阶段、缓慢消散阶段、快速消散阶段和稳定阶段4个阶段。同时，在EPWP快速耗散阶段开始之前，电阻率出现快速下降，然后随着土壤的致密化，电阻率呈现增加的趋势。