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为了深入研究软土的软化现象,对软粘土进行了一系列的动三轴试验。在软土动力三轴试验的基础上,采用最大动剪模量的计算公式,对软土进行了计算和比较,建立了考虑频率影响因素的经验公式。同时,给出了振次曲线的动态参数的拟合公式,计算分析了软土的动态参数,并验证了该公式的适用性。结果表明,考虑频率影响因素的计算公式能更准确地计算出动态参数,提出的曲线拟合计算公式对不同地区土的适用性较好,可以推广使用,便于进行理论分析以及工程运用。
In order to further study the softening of soft soil, a series of dynamic triaxial tests on soft clay were carried out. Based on the triaxial dynamic test of soft soil, the calculation formula of the maximum dynamic shear modulus is used to calculate and compare the soft soil. The empirical formula considering the influence factors of the frequency is established. At the same time, the fitting formulas of the dynamic parameters of the vibration curve are given, the dynamic parameters of the soft soil are calculated and analyzed, and the applicability of the formula is verified. The results show that the dynamic formula can be more accurately calculated by considering the influence factors of frequency, and the proposed formula of curve fitting has good applicability to different regions of soil, which can be used widely to facilitate theoretical analysis and engineering application.