赵家岸滑坡地区马兰黄土物理力学特性试验研究

罗浩 伍法权 王定伟 常金源 包含 许江波 马艾阳

罗浩, 伍法权, 王定伟, 常金源, 包含, 许江波, 马艾阳. 2015: 赵家岸滑坡地区马兰黄土物理力学特性试验研究. 工程地质学报, 23(1): 44-51. doi: 10.13544/j.cnki.jeg.2015.01.007
引用本文: 罗浩, 伍法权, 王定伟, 常金源, 包含, 许江波, 马艾阳. 2015: 赵家岸滑坡地区马兰黄土物理力学特性试验研究. 工程地质学报, 23(1): 44-51. doi: 10.13544/j.cnki.jeg.2015.01.007
LUO Hao, WU Faquan, WANG Dingwei, CHANG Jinyuan, BAO Han, XU Jiangbo, MA Aiyang. 2015: PHYSICAL AND MECHANICAL PROPERTIES OF MALAN LOESS AT ZHAOJIAAN LANDSLIDE AREA. JOURNAL OF ENGINEERING GEOLOGY, 23(1): 44-51. doi: 10.13544/j.cnki.jeg.2015.01.007
Citation: LUO Hao, WU Faquan, WANG Dingwei, CHANG Jinyuan, BAO Han, XU Jiangbo, MA Aiyang. 2015: PHYSICAL AND MECHANICAL PROPERTIES OF MALAN LOESS AT ZHAOJIAAN LANDSLIDE AREA. JOURNAL OF ENGINEERING GEOLOGY, 23(1): 44-51. doi: 10.13544/j.cnki.jeg.2015.01.007

赵家岸滑坡地区马兰黄土物理力学特性试验研究

doi: 10.13544/j.cnki.jeg.2015.01.007
基金项目: 

中国地质调查局工作项目(1212011140001, 12120113007700)资助

详细信息
    作者简介:

    罗浩(1980-),男,博士,主要从事活动构造、地质灾害方面的工作. Email: hy-luo@163.com

  • 中图分类号: P642

PHYSICAL AND MECHANICAL PROPERTIES OF MALAN LOESS AT ZHAOJIAAN LANDSLIDE AREA

  • 摘要: 浸水或增湿过程中,黄土特有的不稳定结构极易发生破坏,约束黄土的力学行为特征.通过粒度分析、扫描电镜和压汞实验对赵家岸滑坡地区黄土的微观结构进行分析,得到由上到下黏土的胶结作用升高,架空孔隙压缩明显,小孔隙几乎没有变化的特征.不同初始含水量条件下三轴压缩实验显示该区的顶部和底部黄土的强度均随初始含水量的增大而减小.由于底部黄土黏土胶结作用较高,黄土的强度减小速率大于顶部黄土.同时发现c值对于水的敏感性明显大于值,强度的降低主要是c值的减小导致.由于地下水位的升高,滑坡底部黄土的含水量增加,颗粒之间主要承担胶结作用的黏土矿物软化,导致附近的黄土微观结构持续破坏,导致赵家岸滑坡发生蠕动.
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出版历程
  • 收稿日期:  2013-11-27
  • 修回日期:  2014-09-11
  • 刊出日期:  2015-02-25

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