院报 ›› 2013, Vol. 30 ›› Issue (4): 52-55.DOI: 10.3969/j.issn.1001-5485.2013.04.012

• 岩土工程 • 上一篇    下一篇

非饱和氯盐渍土抗剪强度特性试验研究

洪安宇,杨晓松, 党进谦, 孙杲辰   

  1. 西北农林科技大学 水利与建筑工程学院, 陕西 杨凌 712100
  • 收稿日期:2011-12-16 修回日期:2013-04-09 出版日期:2013-04-07 发布日期:2013-04-09
  • 通讯作者: 杨晓松（1983-）,男,河南信阳人,博士研究生,从事土的工程性质研究,（电话）15829911491（电子信箱）yxsly2010@163.com。
  • 作者简介:洪安宇（1988-）,女,江西新干人,博士研究生,从事土的工程性质研究,（电话）13468850724（电子信箱）ahong@wpi.edu。

Shear Strength Property of Unsaturated Chlorine Saline Soil

HONG An-yu, YANG Xiao-song, DANG Jin-qian, SUN Gao-chen   

  1. College of Water Resources and Architectural Engineering, Northwest A & F University, Yangling 712100, China
  • Received:2011-12-16 Revised:2013-04-09 Online:2013-04-07 Published:2013-04-09

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摘要： 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。

关键词: 非饱和氯盐渍土, 抗剪强度, 临界含盐量

Abstract: 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.

Key words: unsaturated chlorine saline soil , shear strength , critical salt content

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