膨胀土和非饱和粘土抗剪强度的比较研究

Study on shearing strength comparison between swelling soil and non-saturated clay

非饱和粘性土具有吸水膨胀失水收缩的特性,对环境变化敏感的粘土,非饱和粘性土与膨胀土的强度特性均较为复杂。论文通过实验研究讨论了非饱和粘性土与膨胀土的强度特性以及影响因素,并讨论了含水量对其两种土的抗剪强度指标之间的相关关系。试验结果表明:粘性土与一般膨胀土的吸水膨胀规律完全相同。试验结果可为工程设计提供参考依据。

The non - saturated clayed soil will be swelling in water and be concentrated with water lost. The strength features of the clay, non - saturated clayed soil and swelling soil sensitive to environment variation are all complicated. With the experiment and study, the paper discussed the strength and the influence factors of the non - saturated clayed soil and the swelling soil and discussed the water content to the related relationship between the sheafing strength indexes of the non - saturated soil and the swelling soil. The test resuhs showed that the water swelling law of the clayed soil and swelling soil were completely the same. The test results could be the reference basis for the engineering design.