中文摘要：

针对解决《土工试验方法标准》三轴试验中，黏性土抗剪强度指标出现的变异问题，提出一种黏性土试样组合方法，准确测定黏性土抗剪强度指标值。在原有的一组相同物理性质（含水率，液塑限，级配）黏性土三轴试样的基础上，增加一组或两组相同物理性质试样，通过系统软件对试样进行完备组合，重新形成黏性土抗剪强度指标值样本基数，取其样本数的平均值为黏性土抗剪强度指标。通过试验验证了试样组合方法能有效避免三轴试验中出现的互不包容的莫尔圆，或黏聚力C出现负值试验结果，并在不增加试样数量的前提下，扩大了黏性土抗剪强度指标的样本基数，从而可准确测定抗剪强度指标值。组合方法的提出为黏性土抗剪强度指标的测定提供一定的参考价值。

英文摘要：

This paper aims to solve the problem of shear strength of cohesive soil variability in ＂ soil test method standard＂ triaxial tests. It proposes a combination of clay sample method to accurately determine the value of shear strength of cohesive soil. Based on clay triaxial specimen in the original set of physical properties （moisture content, liquid and plastic limits, gradation） ,one or two samples of the same physical properties added. The system software was used for complete sample combination to re-formation shear strength of cohesive soil samples of the base index value. Then the average number of samples are taken as the clay shear strength. Testing verifies that the sample mix method can effectively avoid the emergence of triaxial tests in Mohr＇ s circle which are not mutually inclusive,or the cohesion c of a negative test result. Without increasing the number of samples, the sticky soil shear strength parameters of the sample base are expanded. The proposal of the combination method provides references for determination of shear strength parameters for clayey soil.