非饱和氯盐渍土抗剪强度特性试验研究

为研究非饱和氯盐渍土的抗剪强度特性,给工程应用提供理论基础,采用人工配置氯盐渍土,进行了室内三轴剪切试验。在定性分析的基础上,定量分析了非饱和氯盐渍土抗剪强度及其指标与含盐量的相互关系。结果表明：试验条件下存在临界含盐量9%,当含盐量小于9%时,非饱和氯盐渍土的抗剪强度及其指标随着含盐量的增加而减小；当含盐量大于9%时,抗剪强度及其指标随着含盐量的增加而增加。

Shear Strength Property of Unsaturated Chlorine Saline Soil

To research the shear strength property of unsaturated chlorine saline soil and to provide fundamental basis for engineering application, we performed conventional triaxial shear strength test on artificial chlorine saline soil. On the basis of qualitative analysis, we quantitatively analyzed the relations of chlorine saline soil strength and its indexes with salt content. The test results indicated that the critical salt content was 9% under the test conditions. When the salt content was less than 9%, shear strength and its indexes decreased with the increase of salt content; when the salt content was more than 9%, shear strength and its indexes increased with the increase of salt content.