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饱和土在理论上一直以两相饱和孔隙介质模拟,利用Biot饱和孔隙介质动力方程纵波解耦的u_i-p(u为波动的振幅位移,p为孔隙水压)解答,结合排水的Somigliana表象积分,能够完成饱和土排水动力反应计算,结果也能在野外试验中验证。为了进一步深入研究饱和土排水的动力特性,设计了室内饱和土动三轴的排水试验,以不同状态饱和粉砂土排水状态下试验的结果,阐述了排水理论计算解答与动三轴试验测试结果的对比分析。最后指出修正后的理论解答与饱和粉砂土的试验测试结果较吻合,并在今后饱和土伴有排水的动力响应分析能在饱和土动力学问题研究中有所应用。
Saturated soil has been theoretically modeled as a two-phase saturated porous medium. The u_i-p (u is the amplitude displacement of the undulation, p is the pore water pressure) decoupled from the longitudinal wave decay of the Biot saturated porous media dynamic equation. Combined with the Somigliana surface integral , To complete the saturated soil drainage dynamic response calculation, the results can also be verified in the field test. In order to further study the dynamic characteristics of saturated soil drainage, a three-axis displacement test of saturated soil in the interior was designed. Based on the test results of saturated silt under different drainage conditions, the theoretical calculation of drainage and the test results of moving triaxial test Comparative analysis. Finally, it is pointed out that the corrected theoretical solution is in good agreement with the experimental results of saturated silt soil. In the future, the dynamic response analysis of saturated soil with drainage can be used in the study of saturated soil dynamics.