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对浙江某地软黏土的原状土样、重塑土样以及掺不同含量水泥的水泥土样进行循环三轴试验,比较分析三种土样在动应变、动强度及动孔压比等动力特性方面的异同。结果表明,当水泥掺量达到3%时,水泥土样的动应变和动强度曲线与原状土样非常接近,可以通过掺适量水泥的方法来模拟原状土的动力特性;水泥土样的动强度随水泥掺量呈非线性变化,可采用双曲线函数表达。
The cyclic triaxial tests were carried out on undisturbed clay samples, remolded clay samples and cement samples mixed with different contents of cement in a certain place in Zhejiang Province. The dynamic characteristics of three kinds of samples were analyzed, such as dynamic strain, dynamic strength and pressure ratio Similarities and differences in aspects. The results show that when the cement content reaches 3%, the dynamic strain and dynamic strength curve of cement soil samples are very close to those of undisturbed soil samples. The dynamic properties of undisturbed soil can be simulated by adding proper amount of cement. The dynamic strength of cement soil samples With the cement content showed a non-linear changes can be expressed by hyperbolic function.